DEPRESSION
AND
ANXIETY 27 : 1001–1005 (2010)
Research Article
DOES PTSD MODERATE THE RELATIONSHIP BETWEEN
SOCIAL SUPPORT AND SUICIDE RISK IN IRAQ
AND AFGHANISTAN WAR VETERANS SEEKING
MENTAL HEALTH TREATMENT?
Matthew Jakupcak, Ph.D.,1,2 Steven Vannoy, Ph.D.,2 Zac Imel, Ph.D.,1,2 Jessica W. Cook, Ph.D.,3
Alan Fontana, Ph.D.,4,5 Robert Rosenheck, M.D.,4,5 and Miles McFall, Ph.D.1,2
Objective: This study examined posttraumatic stress disorder (PTSD) as a
potential moderating variable in the relationship between social support and
elevated suicide risk in a sample of treatment-seeking Iraq and Afghanistan War
Veterans. Method: As part of routine care, self-reported marital status,
satisfaction with social networks, PTSD, and recent suicidality were assessed in
Veterans (N 5 431) referred for mental health services at a large Veteran Affairs
Medical Center. Logistic regression analyses were conducted using this crosssectional data sample to test predictions of diminished influence of social support
on suicide risk in Veterans reporting PTSD. Results: Thirteen percent of
Veterans were classified as being at elevated risk for suicide. Married Veterans
were less likely to be at elevated suicide risk relative to unmarried Veterans and
Veterans reporting greater satisfaction with their social networks were less likely
to be at elevated risk relative to Veterans reporting lower satisfaction. Satisfaction
with social networks was protective for suicide risk in PTSD and non-PTSD cases,
but was significantly less protective for veterans reporting PTSD. Conclusions:
Veterans who are married and Veterans who report greater satisfaction with social
networks are less likely to endorse suicidal thoughts or behaviors suggestive of
elevated suicide risk. However, the presence of PTSD may diminish the protective
influence of social networks among treatment-seeking Veterans. Depression and
Anxiety 27:1001–1005, 2010.
Published 2010 Wiley-Liss, Inc.y
Key words: suicide; social support; PTSD; Iraq; Afghanistan
INTRODUCTION
Recent findings suggest that returning Veterans of
Operation Enduring Freedom (OEF) and Operation
Iraqi Freedom (OIF) who are diagnosed with psychiatric
1
VISN 20 Northwest Mental Illness Research, Education, and
Clinical Center, Seattle, Washington
2
Department of Psychiatry and Behavioral Sciences, University
of Washington School of Medicine, Seattle, Washington
3
Center for Tobacco Research and Intervention, University
of Wisconsin School of Medicine and Public Health, Madison,
Wisconsin
4
VISN 1 New England Mental Illness Research, Education, and
Clinical Center, New England
5
Yale University School of Medicine, New Haven, Connecticut
Published 2010 Wiley-Liss, Inc.
Correspondence to: Matthew Jakupcak, Deployment Health
Clinic, Puget Sound Health Care System, 1660 South Columbian
Way, Seattle, WA 98108. E-mail: matthew.jakupcak@va.gov
The authors report they have no financial relationships within the
past 3 years to disclose.
This work was performed at VA Puget Sound Health Care SystemSeattle Division.
y
This article is a US Government work and, as such, is in the public
domain in the United States of America.
Received for publication 19 February 2010; Revised 27 May 2010;
Accepted 29 May 2010
DOI 10.1002/da.20722
Published online 18 August 2010 in Wiley Online Library (wiley
onlinelibrary.com).
1002
Jakupcak et al.
disorders are at increased risk for suicide.[1] The onset
of suicidal ideation or attempting suicide may represent
preliminary steps toward completed suicide.[2] Hence,
active suicidal ideation or recent suicide attempts are
often used as markers of elevated suicide risk.[3–8] To
prevent suicides, it is critical to identify and understand
the risk and protective factors for elevated suicide risk
among OEF/OIF Veterans with mental disorders.
The positive association between social support and
mental health functioning is well established[9,10] and
the presence of social support is inversely related to risk
for suicidality.[11–13] Support drawn from social networks (spouses, family members, and friendships) may
buffer psychological distress in persons with mental
disorders,[9,10] thus decreasing risk for suicide.[11] Prior
research indicates that marital status is protective for
suicide in community samples of Veterans[14,15] and
Veterans recently discharged from inpatient psychiatric
care are less likely to complete suicide if they reside in a
cohesive community.[16] A recent study found that in a
community sample of OEF/OIF Veterans, PTSD was
associated with an increased risk for suicidal ideation
while post-deployment social support was protective
for suicidal ideation.[17]
Although social support may be protective for suicide
risk in OEF/OIF Veterans, the presence of PTSD may
influence how individuals interact within social networks to cope with stressors, thus mitigating the
protective mechanisms of social support. Prior research
suggests that Veterans with PTSD are more likely to
seek out social support than Veterans without PTSD;
however, Veterans with PTSD are also less likely to use
active problem solving and may instead rely on
maladaptive coping strategies, such as emotional
avoidance or self-blame that can decrease the benefit
of close relationships.[18,19] Accordingly, although
Veterans with PTSD may have access to social support,
they may be less likely to benefit from it.
The purpose of this study was to examine whether
PTSD diminishes the buffering effects of social
support on elevated suicide risk in OEF/OIF Veterans
seeking mental health treatment. We tested a moderation model, in which marital status and satisfaction
with social networks were hypothesized to be less
protective for suicide risk among OEF/OIF Veterans
reporting PTSD relative to Veterans without PTSD.
METHOD
The majority of the subjects were men (88.9%) and the average age
was 32.4 years (SD 5 8.95). Two thirds of the sample indicated race/
ethnicity as White (66.4%), 11% African-American, 6.8% Hispanic,
6% Native American or Pacific Islander, 4.2% Asian, and 5.6%
indicated ‘‘other.’’ More than half of the sample (56.4%) indicated
they were applying for service-connected disability and 10.7%
indicated they were currently service-connected for PTSD. The
majority of the subjects were not married (55.5%) while 44.5%
indicated they were married or remarried.
MEASURES
Veterans were assessed using the Veteran Affairs Military Stress
Treatment Assessment (VAMSTA),[19] a multi-measure assessment
packet used to assess pre- and post-treatment functioning for
Veterans referred for treatment of military-related traumatic stress.
The VAMSTA includes a number of well-established self-report
instruments and has demonstrated good internal and test–retest
reliability.[20] Each of the measures used in this study (described
below) are included in the VAMSTA.
The military version of the posttraumatic checklist (PCL-M)[21]
was used to assess PTSD. Screening criteria for PTSD required a
PCL-M global score of 50 and the presence of the symptoms
endorsed at a moderate or high levels across the three symptom
clusters per the DSM-IV algorithm for diagnosing PTSD.
Marital status (married/unmarried) and ratings of satisfaction with
social networks were used as measures of social support. Both marital
status and subjective ratings of satisfaction with social relationships
have been shown to influence clinical outcomes in trauma-exposed
populations.[22] Satisfaction with social networks was measured using
three items drawn from the Quality of Life Interview.[23] Items ask
respondents to rate their satisfaction (1 5 Terrible, 2 5 Unhappy,
3 5 Mostly Dissatisfied, 4 5 Mixed, 5 5 Mostly Satisfied, 6 5 Pleased)
in three domains of their social networks: (1) amount of time spent
with other people, (2) quality of relationships with family members,
and (3) amount of friendship in life.
We created an operational definition for elevated suicide risk, based
on the report of recent active and/or frequent suicidal ideation or a
recent suicide attempt. Current suicidal ideation was assessed using
three items drawn from the Scale for Suicidal Ideation (SSI).[24] The
three items from the SSI asked respondents to rate, within the past
month: (1) their desire to make an active suicide attempt (1 5 no
desire, 2 5 weak desire, 3 5 moderate-to-strong desire), the frequency of suicidal ideation (1 5 never, 2 5 rarely/occasionally,
3 5 off and on, 4 5 persistently or continuously), and control over
suicidal ideation (1 5 no thoughts of suicide, 2 5 sure of control over
attempting, 3 5 unsure of control over attempting, 4 5 no sense of
control over attempting). A single yes/no item in the VAMSTA asked
respondents if they had made a suicide attempt in the 4 months
before seeking VA care. Veterans were classified in the elevated
suicide risk group if they indicated a score of 3 or more on any of the
SSI items suggestive of active or prominent suicidal ideation or if they
endorsed a recent suicide attempt.
PARTICIPANTS
DATA ANALYSIS
The sample was drawn from OEF/OIF Veterans (N 5 466) who
were consecutively assessed and subsequently referred for mental
health services at VA Puget Sound Health Care System (VAPSHCS)
from 2004 to 2007. Cases that were missing key variables were
omitted (n 5 35), resulting in a final sample of 431 participants. The
study protocol included a waiver of informed consent to use
de-identified clinic data and was approved by the University of
Washington Internal Review Board and the Research and Development Committee of VAPSHCS.
We used SPSS Version 13 and conducted preliminary chi-square
tests, Spearman’s rho correlation, and analyses of variance for
categorical and continuous variables in order to identify potential
covariates. Thirteen percent (n 5 56) of the sample were classified as
being at elevated suicide risk. There were no significant associations
between sociodemographic variables (i.e., gender, age, race/ethnicity,
years of education, disability-seeking status) and elevated suicide risk.
Surprisingly, we found no significant association between marital
status and Veteran’s ratings of satisfaction with their social networks,
Depression and Anxiety
Research Article: Does PTSD Moderate the Relationship?
r 5 –0.003, P4.50. Veterans who were unmarried (n 5 239) were no
more likely to screen positive for PTSD than were married Veterans
(n 5 192), Wald 5 0.71, P 5.398, OR 5 1.17. However, Veterans in
the PTSD group (n 5 214) reported significantly less satisfaction with
their social networks (M 5 3.7, SD 5 1.13) relative to Veterans in the
non-PTSD group (n 5 217) (M 5 4.9, SD 5 1.09), F(1,429) 5 141.2,
Po.001).
Logistic regression analysis was planned to test the hypothesis that
PTSD status moderates the relationship between social support and
elevated suicide risk. As the marital status and satisfaction with social
networks variables were not significantly interrelated, we conducted
two separate hierarchical logistical regression models following
methods recommended for testing for moderation and interpreting
interaction effects.[25,26] Main effect variables are entered into the
first step of a regression model and the interaction terms are entered
into the second step. Specifically, PTSD and marital status were
entered into the first step of the model predicting group classification
for elevated suicide risk and the interaction term (Marital
Status PTSD) was entered into the second step of the regression
model. A second regression model was conducted to test for
moderation using satisfaction with social networks. The satisfaction
variable was centered and standardized using a Z-score transformation and entered into the first step of the model with PTSD; the
interaction term (Satisfaction with Social Networks PTSD) was
entered into the second step of the model.
RESULTS
The results of the two regression models testing
moderation are presented in Table 1. In the first step of
the Model 1, both marital status and PTSD were
significantly related to elevated suicide risk. Veterans
reporting PTSD were more likely to be classified in the
elevated suicide risk group relative to non-PTSD
Veterans, whereas married Veterans were 53% less
likely to be in the elevated suicide risk group relative to
unmarried Veterans. However, the interaction term
(Marital Status PTSD) did not significantly predict
group classification for elevated suicide risk (see
Table 1). Accordingly, marital status did not differentially protect against elevated suicide risk in Veterans
with and without PTSD.
TABLE 1. Logistic regression models showing
predictors of elevated suicide risk
Wald’s Z
Model 1 (marital status)
PTSD
31.28
Marital status
6.32
PTSD
22.35
Marital status
1.40
PTSD Marital Status
0.27
Model 2 (satisfaction with social networks)
PTSD
14.38
Social networks
14.01
PTSD
14.59
Social networks
10.75
PTSD Social Network
4.74
Po.05; Po.01.
OR
CI (95%)
11.98
0.47
10.46
0.27
1.82
5.02–28.59
0.26–0.85
3.95–27.69
0.03–2.35
0.19–17.28
5.29
0.51
9.37
0.18
3.38
2.36–14.85
0.36–0.73
2.97–29.51
0.06–0.50
1.13–10.10
1003
In the first step of Model 2, both PTSD and
satisfaction with social networks were significantly
associated with elevated risk for suicide. Veterans
reporting satisfaction ratings one standard deviation
above the mean were 49% less likely to be classified in
the elevated suicide risk group. In the second step of
Model 2, the interaction term was a significant
predictor of elevated suicide risk. Simple effects
analyses showed that satisfaction with social networks
was less protective for suicide risk in the PTSD group
(OR 5 0.61, Po.01) relative to the non-PTSD group
(OR 5 0.20, Po.01). A one standard deviation increase
in satisfaction ratings corresponded to a 39% reduction
in the likelihood of being classified in the elevated
suicide risk group in Veterans reporting PTSD
compared to the 80% decrease in likelihood observed
in the non-PTSD group.
DISCUSSION
Marital status and Veterans’ ratings of satisfaction
with social networks were independently protective for
suicide risk in this sample of OEF/OIF Veterans
referred for mental health services. As predicted,
satisfaction with social networks reduced suicide risk
in OEF/OIF Veterans, but was less protective for
Veterans reporting symptoms of PTSD. The presence
of PTSD in OEF/OIF Veterans may interfere with
how Veterans utilize social networks, thus lessening the
beneficial effects of social support. Further research is
needed to explore specific help-seeking and interpersonal coping behaviors associated with PTSD to
elucidate the mechanisms through which PTSD
impacts use of social support. However, the current
findings suggest that clinicians addressing PTSD
should not overrate the protective aspect of social
networks. Not only are OEF/OIF Veterans with PTSD
likely to be less satisfied with their social networks, it
seems their satisfaction has less impact on distress
evidenced by suicide ideation and/or recent suicide
attempts. Clinicians are encouraged to introduce
interpersonal skills training and promote Veterans’
positive engagement in their social networks,[27]
especially among OEF/OIF Veterans who report
limited or strained social support.
We did not find support for our hypothesized
moderation model when examining the interaction
between PTSD and marital status. Regardless of PTSD
status, married Veterans may benefit from a live-in
spouse who can readily provide assistance addressing
psychosocial stressors, thus preventing the onset of
suicidal thoughts or behaviors. Surprisingly, we found
no association between marital status and satisfaction
with social networks, perhaps suggesting that the
instrumental support offered by spouses is protective
for suicide risk through mechanisms independent of
subjective relationship satisfaction. Marital status may
also represent a perceived sense of responsibility for
Depression and Anxiety
1004
Jakupcak et al.
others that protects OEF/OIF Veterans from suicidal
impulses, irrespective of PTSD. Future research is
needed to explore the ways in which objective and
subjective features of social support interrelate in OEF/
OIF Veterans.
The current findings should be considered within the
context of study limitations. First, this study relied on
self-report measures in a treatment-seeking sample.
Veterans may have either minimized or inflated reports
of specific symptoms due to stigma or compensation
seeking. Thus, these results may not generalize to nontreatment-seeking OEF/OIF Veterans. Second, the
data used for this study is cross-sectional, and causal
relationships between PTSD, social support, and risk
for future suicidal behaviors cannot be assumed.
Although we found partial support for our proposed
moderation model, it is also plausible that symptoms of
PTSD contribute to a Veteran’s progressive strain on
social relationships,[28–30] thus increasing Veterans’
social withdrawal and perceived burden on others,
markers of risk that can portend suicide.[31] Alternatively, hereditary factors may inform a biological
vulnerability in each domain, such that individuals
who are predisposed to develop PTSD following
traumatic life events are also predisposed to experience
interpersonal difficulties or suicidal ideation. Largescale prospective studies are needed to further test
moderation and meditational models to determine
the longitudinal course of PTSD, social support,
and suicide risk in OEF and OIF Veterans. Finally,
we relied on marital status and single-item ratings
of satisfaction specific to social access (i.e., time
spent with other people), and the amount and quality
of friendships and family relationships. Because
social support is a complex construct with multifaceted features,[9,10,32] future research should use
comprehensive measures of social integration and
objective and subjective appraisals of social support to
identify mechanisms that may inform elevated suicide
risk in OEF and OIF Veterans with mental health
concerns.
CONCLUSIONS
Iraq and Afghanistan War Veterans, who are married
and report greater satisfaction with their social support
networks, are less likely to endorse thoughts or
behaviors suggestive of elevated suicide risk. Although
protective for suicide risk in Veterans with and without
PTSD, the buffering effects of social networks may be
less pronounced in Veterans reporting symptoms of
PTSD. Clinicians should assess for satisfaction with
social networks and consider promoting positive
interpersonal coping skills and greater social integration, especially for Veterans with PTSD. Veterans’
friends and family members should be educated to
detect warning signs of suicide and be informed of VA
and community mental health resources in order to
prevent Veteran suicide.
Depression and Anxiety
Acknowledgments. This material is the result of
work supported by resources from the VA Puget Sound
Health Care System, Seattle, Washington.
Conflict of Interest: The authors declare there are no
conflicts of interest.
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Journal of Traumatic Stress
April 2014, 27, 244–248
BRIEF REPORT
Traumatic Brain Injury, PTSD, and Current Suicidal Ideation
Among Iraq and Afghanistan U.S. Veterans
Blair E. Wisco,1,2 Brian P. Marx,1,2 Darren W. Holowka,1,2 Jennifer J. Vasterling,1,2 Sohyun C. Han,1
May S. Chen,1 Jaimie L. Gradus,1,2,3 Matthew K. Nock,4 Raymond C. Rosen,5 and Terence M. Keane1,2
1
National Center for PTSD at VA Boston Healthcare System, Boston, Massachusetts, USA
Department of Psychiatry, Boston University School of Medicine, Boston, Massachusetts, USA
3
Department of Epidemiology, Boston University School of Public Health, Boston Massachusetts, USA
4
Department of Psychology, Harvard University, Cambridge, Massachusetts, USA
5
New England Research Institutes, Watertown, Massachusetts, USA
2
Suicide is a prevalent problem among veterans deployed to Iraq and Afghanistan. Traumatic brain injury (TBI) and psychiatric conditions,
such as posttraumatic stress disorder (PTSD), are potentially important risk factors for suicide in this population, but the literature is limited
by a dearth of research on female veterans and imprecise assessment of TBI and suicidal behavior. This study examined 824 male and
825 female U.S. veterans who were enrolled in the baseline assessment of the Veterans After-Discharge Longitudinal Registry (Project
VALOR), an observational registry of veterans with and without PTSD who deployed in support of the wars in Iraq and Afghanistan and
were enrolled in the Veterans Affairs healthcare system. Results indicated that current depressive symptoms, PTSD, and history of prior
TBI were all significantly associated with current suicidal ideation (Cohen’s d = 0.91, Cramers’ Vs = .19 and .08, respectively). After
adding a number of variables to the model, including psychiatric comorbidity, TBI history was associated with increased risk of current
suicidal ideation among male veterans only (RR = 1.55). TBI is an important variable to consider in future research on suicide among
veterans of the wars in Iraq and Afghanistan, particularly among male veterans.
Suicide occurs at an alarming rate among Operation Enduring
Freedom (OEF), Operation Iraqi Freedom (OIF), and Operation
New Dawn (OND) veterans (LeardMann et al., 2013). Suicidal
ideation is a primary target of the Department of Veterans Affairs’ (VA) suicide screening efforts. A better understanding of
factors associated with suicidal ideation among OEF/OIF/OND
veterans accessing VA services is critically important to informing suicide prevention.
Posttraumatic stress disorder (PTSD), depression, and substance abuse are well-established risk factors for suicidal
ideation among OEF/OIF veterans (Pietrzak et al., 2010). Traumatic brain injury (TBI), a “signature injury” of OEF/OIF, may
confer further risk. Although small studies suggest that the association between TBI and suicidal behavior is explained by comorbid PTSD (Barnes, Walter, & Chard, 2012), a large study of
veterans found that TBI predicted suicide, even after adjusting
for psychiatric comorbidity (Brenner, Ignacio, & Blow, 2011).
Importantly, there is comparatively little research on suicidal
behavior among women veterans, a growing yet understudied group. Female veterans are a vulnerable population who
are at increased suicide risk relative to female civilians (McCarthy et al., 2009). The association between TBI and suicidal
ideation may be particularly important among female veterans,
as women who serve in the military are at increased risk of TBI
relative to female civilians (Tanielian & Jaycox, 2008).
This study examined associations between current suicidal
ideation and self-reported TBI history, lifetime PTSD, and
other deployment-related factors in a large sample of male
and female OEF/OIF/OND veterans accessing VA mental
health care. We hypothesized that suicidal ideation would be
associated with TBI history, psychiatric conditions, combat and
Dr. Wisco is now at the University of North Carolina at Greensboro.
Funding was provided by the U.S. Department of Defense Awards W81XWH08-2-0100 and W81XWH-08-2-0102. Dr. Wisco was supported by Award
Number T32MH019836 from the National Institute of Mental Health. The
funding organizations for this study had no role in the design or conduct of the
study; in the collection, management, analysis, and interpretation of the data
or in preparation, review, or approval of the manuscript. The content is solely
the responsibility of the authors and does not necessarily represent the official
views of the Department of Defense, Department of Veterans Affairs, or the
National Institute of Mental Health.
Correspondence concerning this article should be addressed to Brian P. Marx,
National Center for PTSD, VA Boston Healthcare System, 150 South Huntington Ave., 116B-4, Boston, MA 02130. E-mail: brian.marx@va.gov
2014. This article is a US Government work and is in the public domain in the
USA. View this article online at wileyonlinelibrary.com
DOI: 10.1002/jts.21900
244
245
TBI, PTSD, and Suicidal Ideation in OEF/OIF/OND Veterans
postbattle experiences, and lower levels of postdeployment social support. We further hypothesized that TBI history would be
related to suicidal ideation even after adjusting for psychiatric
comorbidity. Finally, we predicted that similar risk and protective factors would be observed for female and male veterans.
Method
Participants and Procedure
Participants were United States Army or Marine veterans
enrolled in the baseline assessment of the Veterans AfterDischarge Longitudinal Registry (Project VALOR), a registry
of VA mental health care users with and without PTSD who
deployed in service of OEF/OIF/OND (Rosen et al., 2012).
Veterans with probable PTSD according to medical records
were oversampled at a 3:1 ratio to create the PTSD registry;
women (underrepresented among veterans) were sampled at a
1:1 ratio.
Potential participants (n = 4,391) were contacted by phone;
2,712 (61.8%) consented to participate. Of consented participants, 1,649 completed questionnaires online or by mail and a
telephone interview with a doctoral-level clinician (1,214 with
probable PTSD and 436 with no PTSD, according to administrative records), yielding a response rate of 37.6%. Responders
were slightly older (M = 38.50 years, SD = 9.74) than nonresponders (M = 35.79 years, SD = 9.73; t(4,389) = 8.94,
p < .001, Cohen’s d = 0.28) and more likely to be Caucasian
(56.0% vs. 48.9%, respectively, χ2 (4, N = 4391) = 40.60,
p < .001, Cramer’s V = .09). There was no difference in military branch, χ2 (1, N = 4,391) = 1.73, p = .188, Cramer’s
V = .02). To ensure safety, 42 participants at high suicide risk
(total score > 17 on measure described below) were excluded.
All procedures were approved by the VA Boston Healthcare
System Institutional Review Board.
Measures
Age and sex were derived from participants’ medical record.
Ethnicity and race were obtained by self-report. A modified Deployment Risk and Resilience Inventory (DRRI; King, King,
Vogt, Knight, & Samper, 2006) was used to assess combat
intensity (16-item combat experiences scale), other warzone
stressors (16-item postbattle experiences scale), and social support (15-item postdeployment social support scale).
TBI history was assessed using structured interview questions reflecting current classification standards (American
Congress of Rehabilitation Medicine, Head Injury Interdisciplinary Special Interest Group, 1993). Participants were asked
if they ever had a head injury or blast exposure that led to altered
consciousness, memory loss, seizures, or brain surgery. If so,
up to five injuries were queried. For each injury, participants
were asked when the injury occurred, whether it occurred during deployment, whether they were “dazed, confused, or seeing
stars” (altered mental state) immediately afterwards, presence
and duration of loss of consciousness, whether they could recall
the event immediately afterwards, and how long after the injury
they began remembering new things (posttraumatic amnesia).
Participants were classified as having probable TBI if they reported at least one head injury with either altered mental state,
loss of consciousness, or posttraumatic amnesia. For additional
analyses, participants were further classified according to these
TBI characteristics: (a) number, (b) loss of consciousness, (c)
single or multiple, (d) occurred on or off deployment, and (e)
the number of months since the most recent TBI. One hundred
interviews were coded for interrater agreement (κ = .97).
PTSD diagnostic status for all participants was confirmed using the Structured Clinical Interview for DSM-IV, PTSD module (SCID; Spitzer, Williams, Gibbon, & First, 1992), a wellvalidated clinician administered interview. Interrater agreement
among the three raters, based on a randomly selected subsample
of 5% of interviews, was high (κs > .85). Lifetime PTSD status
(any current or past PTSD diagnosis) determined by SCID was
used in all analyses.
The total score on the 8-item version of Prime-MD Patient
Health Questionnaire (PHQ-8; Wells, Horton, LeardMann, Jacobson, & Boyko, 2013) was our measure of current depressive
symptoms (Cronbach’s α = .90). The Alcohol Use Disorders
Identification Test (AUDIT; Saunders, Aasland, Babor, Fuente,
& Grant, 1993), a 10-item questionnaire (Cronbach’s α = .87),
was used to classify participants with the suggested ranges of 8
to 16 for moderate and > 16 for high alcohol problems.
The Mini-International Neuropsychiatric Interview, English
version 5.0 (M.I.N.I., Sheehan et al., 1998) is a brief structured diagnostic interview assessing suicidality within the past
month. Participants who endorsed any of four items assessing
suicidal ideation were classified as ideators.
Data Analysis
We conducted χ2 analyses and t tests examining whether those
with and without suicidal ideation differed on variables of interest. We then conducted multivariate Poisson regressions predicting suicidal ideation status using a hierarchical approach;
the first multivariate model included demographics, the second
model added combat and postbattle experiences, and the third
model included all variables. To examine possible gender differences, these three multivariate models were conducted in the
full sample and separately among males and females, yielding
a total of nine analyses. As a sensitivity analysis, multivariate regressions were repeated excluding participants reporting
moderate-to-severe TBI (defined as at least one TBI with loss
of consciousness > 30 minutes or posttraumatic amnesia >
24 hours). Complete data were not available for all variables;
analyses were completed on all available data.
Results
Bivariate analyses are provided in Table 1. Hispanic ethnicity, PTSD, high levels of alcohol problems, TBI history, more
Journal of Traumatic Stress DOI 10.1002/jts. Published on behalf of the International Society for Traumatic Stress Studies.
246
Wisco et al.
Table 1
Characteristics of Veterans With and Without Current Suicidal Ideation
Variable
Female
Hispanic
Race
White
Black
Asian
AI/AN
NH/PI
Multiracial
Lifetime PTSD
Alcohol problems
Moderate
High
TBI
ࣙ 1 reported
No LOC
LOC
Single
Multiple
Off deployment
On deployment
On/off deployment
Age
Combat experiences
PB experiences
PD social support
Current depression
Months since last TBI
Combined
No suicidal ideation
n or M
% or SD
n or M
% or SD
825
211
50.1
13.0
625
141
50.8
11.6
1238
261
15
18
5
61
1250
77.5
16.3
0.9
1.1
0.3
3.8
77.1
943
181
11
13
2
45
875
336
168
20.5
10.3
896
339
557
452
443
304
390
201
37.49
32.88
33.08
49.57
20.40
100.9
55.8
21.1
34.7
28.2
27.6
18.9
24.3
12.5
9.88
12.70
13.03
11.23
6.40
87.46
Suicidal ideation
n or M
% or SD
V or d
200
70
48.0
17.2
.03
.07**
.07
78.9
15.1
0.9
1.1
0.2
3.8
72.4
295
80
4
5
3
16
375
73.2
19.9
1.0
1.2
0.7
4.0
91.0
.19***
248
104
20.3
8.5
88
64
21.2
15.4
.03
.12***
643
251
392
342
300
221
288
133
36.98
32.36
32.65
50.91
19.08
99.98
53.5
20.9
32.6
28.5
25.0
18.4
24.0
11.1
9.84
12.62
12.99
11.06
6.16
88.77
62.6
21.8
40.8
27.2
35.4
20.5
25.2
16.8
9.86
12.83
13.09
10.81
5.38
83.62
.08**
.05
.10**
.04
.12***
.07*
.06
.12***
0.21***
0.16**
0.13*
0.48***
0.91***
0.04
253
88
165
110
143
83
102
68
39.02
34.39
34.32
45.61
24.34
103.69
Note. AI/AN = American Indian/Alaska Native; NH/PI = Native Hawaiian/Pacific Islander; PTSD = posttraumatic stress disorder; TBI = traumatic brain injury;
LOC = loss of consciousness; PB = postbattle; PD = deployment. Data on suicidal ideation were not available for two participants, who are excluded from this table.
Ns ranged from 1,598 to 1,647 for the combined sample, 1,195 to 1,230 for individuals with no suicidal ideation, and 403 to 417 for individuals with suicidal ideation.
Cramer’s V was used as the effect size index for continuous variables; Cohen’s d was used for categorical variables. Chi−square tests for alcohol variables reflect
comparisons to the no alcohol control group; χ2 tests for the TBI variables reflect comparisons to the no TBI control group.
*p < .05. **p < .01. ***p < .001.
severe depressive symptoms, older age, greater exposure to
combat and postbattle experiences, and lower levels of social
support were associated with current suicidal ideation. There
was no effect of gender on suicidal ideation. A history of multiple TBIs and TBI with loss of consciousness were more strongly
associated with suicidal ideation than a history of a single TBI
or TBI without loss of consciousness. Multivariate Poisson regression (Table 2) revealed that, after adjusting for effects of
other variables, risk of suicidal ideation higher among veterans
with more severe depressive symptoms and with PTSD diagnoses, and among veterans of Hispanic ethnicity. In follow-up
multivariate models stratified by gender, TBI was associated
with significantly increased risk among men but not women.
PTSD, depressive symptoms, and Hispanic ethnicity were associated with increased risk of suicidal ideation for men and
women. The sensitivity analysis indicated that TBI associations
remained the same when participants with moderate-to-severe
TBI (n = 160, 17.8% of participants with TBI) were excluded.
Discussion
History of TBI, a common experience of veterans deployed
in service of OEF/OIF/OND, emerged as a noteworthy correlate of current suicidal ideation. Specific TBI characteristics,
loss of consciousness and multiple injuries, were associated
with greater suicidal ideation risk at the bivariate level. After
Journal of Traumatic Stress DOI 10.1002/jts. Published on behalf of the International Society for Traumatic Stress Studies.
247
TBI, PTSD, and Suicidal Ideation in OEF/OIF/OND Veterans
Table 2
Hierarchical Multivariate Models Accounting for Suicidal Ideation among Males, Females, and Full Sample
Male
Variable
Model 1: Demographics
Gender (male)
Age
Hispanic
Race
Black
Other
Female
Combined
RR
95% CI
RR
95% CI
RR
95% CI
–
1.01
1.43*
[1.00, 1.02]
[1.02, 1.99]
–
1.02*
1.77*
[1.01, 1.03]
[1.32, 2.36]
1.06
1.01*
1.59*
[0.97, 1.15]
[1.01, 1.02]
[1.27, 1.98]
1.37
1.14
[0.98, 1.92]
[0.69, 1.88]
1.26
1.26
[0.95, 1.68]
[0.82, 1.92]
1.30*
1.19
[1.05, 1.61]
[0.86, 1.64]
–
1.02*
1.78*
[1.01, 1.03]
[1.33, 2.39]
1.01
1.01*
1.62*
[0.92, 1.11]
[1.01, 1.02]
[1.30, 2.03]
1.26
1.21
1.00
1.00
[0.94, 1.68]
[0.78, 1.90]
[0.99, 1.02]
[0.99, 1.01]
1.27*
1.16
1.01
1.00
[1.02, 1.59]
[0.82, 1.62]
[1.00, 1.02]
[0.99, 1.01]
–
1.01
1.56*
[1.00, 1.03]
[1.14, 2.12]
1.09
1.01
1.52*
[0.99, 1.19]
[1.00, 1.02]
[1.22, 1.89]
1.05
1.13
0.98
0.98
0.99
1.09*
1.85*
[0.79, 1.40]
[0.72, 1.78]
[0.97, 1.00]
[0.99, 1.01]
[0.98, 1.00]
[1.06, 1.11]
[1.16, 2.94]
1.08
1.01
0.99
0.99
0.99
1.09*
2.00*
[0.87, 1.34]
[0.73, 1.41]
[0.99, 1.00]
[0.98, 1.00]
[0.98, 1.00]
[1.07, 1.11]
[1.41, 2.83]
1.01
1.19
0.95
[0.72,1.42]
[0.80, 1.77]
[0.74, 1.22]
1.02
1.17
1.17
[0.83, 1.26]
[0.98, 1.40]
[0.98, 1.40]
Model 2: Demographics and deployment-related stressors
Gender (male)
–
Age
1.01
[1.00, 1.02]
Hispanic
1.46*
[1.04, 2.06]
Race
Black
1.30
[0.92, 1.84]
Other
1.13
[0.67, 1.91]
Combat experiences
1.01
[1.00, 1.03]
Postbattle experiences
1.00
[0.99, 1.01]
Model 3: All variables
Gender (male)
–
Age
1.00
[0.99, 1.02]
Hispanic
1.45*
[1.05, 1.99]
Race
Black
1.18
[0.84, 1.64]
Other
0.94
[0.58, 1.50]
Combat experiences
1.00
[0.99, 1.01]
Postbattle experiences
0.99
[0.98, 1.00]
Postdeployment support
0.99
[0.98, 1.00]
Depressive symptoms
1.10*
[1.07, 1.12]
PTSD
2.16*
[1.29, 3.61]
Alcohol problems
Moderate
1.04
[0.79, 1.37]
High
1.28
[0.95, 1.71]
TBI
1.55*
[1.16, 2.09]
Note. RR = relative risk; CI = confidence interval; PTSD = posttraumatic stress disorder; TBI = traumatic brain injury. Models 1, 2, and 3 were each run three times:
among males only, among females only, and in the combined sample. Confidence intervals not including one indicate statistical significance at α = .05. Age, combat
experiences, postbattle experiences, postdeployment social support, and depressive symptoms were entered into the models as continuous variables. Prevalence ratios
for alcohol variables reflect risk in reference to a no-alcohol control group; ratios for race reflect risk in reference to a White control group.
adjusting for covariates, TBI was significantly associated with
current suicidal ideation among male, but not female veterans.
Our results do not explain why suicidal ideation is higher among
veterans reporting prior TBI or whether the association is due
to neural causes. One possibility is that TBI leads to cognitive
deficits that impair cognitive control and mood regulation, although there is little evidence of long-lasting cognitive deficits
in mild TBI (Vasterling et al., 2006). Nonetheless, these results indicate that TBI assessment may be important to include
in future suicide screening research, particularly in male
veterans.
Consistent with prior research, depression, lifetime PTSD,
high levels of alcohol problems, and low levels of social support were associated with current suicidal ideation at the bivariate level. After adjusting for covariates, depression and PTSD
remained significantly associated with suicidal ideation. Key
deployment-related factors (combat and postbattle experiences)
were weakly related to suicidal ideation, and were not significant after adjusting for demographics. These findings suggest
that assessment of combat exposure is less valuable than assessment of psychiatric conditions in determining suicide risk
(LeardMann et al., 2013).
Journal of Traumatic Stress DOI 10.1002/jts. Published on behalf of the International Society for Traumatic Stress Studies.
248
Wisco et al.
Unfortunately, due to the observational and retrospective nature of our study, we cannot determine causal relationships. The
generalizability of our findings is potentially limited by aspects
of our sample, which was self-selected, restricted to deployed
OEF/OIF/OND veterans seeking mental healthcare within VA,
and excluded participants at highest suicide risk in the interest
of safety. Finally, we did not verify TBI independently with eye
witnesses or medical records, a limitation common in deployed
samples. Strengths include the large sample of both female and
male veterans and the use of structured interviews for assessment of TBI, PTSD, and suicidal ideation.
Therefore, psychiatric disorders are important markers of
suicidal ideation among both male and female OEF/OIF/OND
veterans accessing VA mental health care. Among male veterans in this cohort, self-reported TBI is also an important suicidal
ideation marker. Our results offer initial support for including
TBI history, in addition to psychiatric history, in suicide risk
assessment, especially for male veterans.
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Journal of Traumatic Stress DOI 10.1002/jts. Published on behalf of the International Society for Traumatic Stress Studies.
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Corridor Business Journal Jan. 1 - 7, 2018 17
COLUMN | HEALTH CARE
Veteran suicide – a problem solved
with community solutions
As we enter the new year, the holidays are behind
us and the gatherings with friends and family
are receding into memories. Our vigilance about
suicide, however, needs to remain sharp. People
who struggle during the holiday season are still
struggling today, many even more so.
Veterans who have served our country with
pride need our help now more than ever. It is time
to know the signs of veterans in crisis and know
how to help when the time comes. The VA is here
to assist in that effort and we know that we cannot do it alone. This is a problem that will only be
solved with the whole community involved.
The U.S. Department of Veterans Affairs (VA)
and the VA Health Care System in Iowa City are
on a mission to end suicide among veterans in
communities across America, including here in
Eastern Iowa and Western Illinois. As a part of
that, we have launched the #bethere campaign
to connect communities with valuable resources for helping those in crisis.
Approximately 14 of the 20 veterans who die
by suicide each day are not receiving care from
the Veterans Health Administration. We need
your help to reach them. We invite you to share
your insights, experiences and resources to shape
public health initiatives that support veterans at
risk. One veteran suicide is one too many.
VA works with hundreds of organizations
and corporations at the national and local levels, including veterans service organizations,
local businesses and religious organizations, to
raise awareness about suicide prevention programs. These partners have regular contact with
veterans as well as active duty service members,
One veteran suicide
is one too many.
reservists, National Guard members and their
families. By reaching out to help, communities
can send the message that they value these individuals and their service.
Organized events are a great way for our
partners to advance the critical national goal
of ending veteran suicide. By promoting vet-
eran-focused resources in your community at
events such as job fairs and wellness expos, you
can help us reach all veterans. Connecting with
fellow veterans to spread the word about mental
health and suicide prevention resources makes
veteran wellness a community priority.
If you are hosting a community event in your
area, the VA would love to partner with you.
Reach out to us at (319) 338-0581, ext. 7104 if
you are interested in developing our partnership
to #bethere for veterans and service members
who are struggling.
Veterans, family members and care providers
can initiate a free and confidential conversation
with an experienced and caring VA responder by
calling the Veterans Crisis Line. If you are concerned about the safety and well-being of a veteran, call (800) 273-8255 and press 1. Chat online at VeteransCrisisLine.net/Chat to get support
anonymously. A text message can also be sent to
838255 to connect to a VA responder. These resources can be used even if a veteran is not registered with VA or enrolled in VA health care.
Veteran suicide is preventable, and suicide
prevention is everyone’s business. Visit www.
va.gov/nace/myVA/ or www.iowacity.va.gov for
more information. •
Judith Johnson-Mekota
is director of the Iowa
City VA Health Care
System.
COLUMN | CONSULTING
Set a ‘HARD’ goal in 2018
Gale Mote is a trainer,
organizational development catalyst and coach
in Cedar Rapids. Contact her at galemote@
galemoteassociates.com
I admit that I gave up on New Year’s resolutions
a long time ago. I stuck with them for about 12
hours and then, like a rubber band, the forces
of habit snapped me back to my comfort zone.
Goal-setting is different than making a
half-hearted commitment over a champagne
toast. To really accomplish anything worthwhile, you need to have a goal – to know where
you are going and why, and, most importantly,
to know when you have arrived.
Effective goals bring greater clarity to our decision-making. We have the courage to say “no”
to what is not urgent or important, and to focus
our time, energy and resources on activities that
move us in the direction of the finish line.
You’ve probably heard of setting SMART
Goals: Specific, Measurable, Attainable, Relevant and Time Oriented. These are all classic
principles important to incorporate into your
goal-setting tool kit.
I would like to offer another model from
Mark Murphy and Leadership IQ called HARD
Goals: Heartfelt, Animated, Required and Difficult. Let’s explore each in more detail.
Heartfelt means that you really care about
the goal – it’s important to you. Murphy says, “A
HARD goal has to be something which promises
you more value than any other goal imaginable
and therefore you are not going to let anything
get in the way of making it happen.” In the year
ahead, what is something you want really badly? How passionate are you about this goal? Is it
a nice-to-have or a must? Get passionate!
Do you remember interviewing for your dream
job? You practiced the interview questions. On
the day of the interview, you stoked your brain
with positive affirmations – “I am confident,” “I
am an awesome fit for this role.” You could literally see yourself shaking hands with the interviewer and smiling as you walked away from the
building, knowing the job was yours.
Animation is making your goals come to life
in your imagination. As an example, when Howard Schultz founded Starbucks, he visualized
it as a “third place between work and home.”
Steve Jobs referred to the iPod as “1,000 songs
in your pocket.”
To do this, you must first create a vision of what
it will feel like to accomplish your goal. Then you
need to animate it with a vivid mental picture that
might include color, emotions, size, shape and
movement. Finally, you need to write down what
you imagine. Writing imprints in the brain and
will reinforce the mental image you’ve created.
Tomorrow is the killer for most goals. While
it worked to keep little Orphan Annie optimistic,
procrastination will not help you realize your
goals. Required means exactly that – achieving
your goal is a necessity, not an option. The anticipation of achieving the goal has to be so much
more attractive that what you are doing today.
Make a list of all the benefits of achieving the
goal and bring them closer to you. Stay focused
on them as you move confidently, one step at a
time, in the direction of your vision.
Change is not easy. There will be obstacles. Identify what might get in the way of you
achieving your goal and think about how you
will meet that challenge. Create a sense of urgency to keep the momentum.
Difficult means setting a goal that will force
you to tap into your inner strength and bring the
best of yourself to the task at hand. Of course,
you don’t want it to be so hard that you quit
before you even start. Think about the accomplishments that you are most proud of in your
life. Did they come easy or were they difficult to
achieve? When you reach a HARD goal, you will
say I gave it my all and it was worth it. I put in
the time, made the sacrifices, paid the price and
now I feel this tremendous sense of accomplishment. It’s a natural high.
Best wishes for an amazing year ahead where
your HARD goals become a reality! •
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