Epidemiology of Health and Illness Community Health Planning Paper

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Epidemiology of Health and Illness

Community Health Planning

Implementation and evaluation

Read chapter 5, 7 and 8 of the class textbook and review the attached PowerPoint presentations. Once done answer the following questions;

  1. Define epidemiology and describe the epidemiological triangle and other epidemiology tools in disease control and prevention.
  2. Discuss the use of epidemiology in disease prevention.
  3. Define and describe the concept of "community as a client."
  4. Describe and discuss the goals of health education within the community setting.

A minimum of 700 words without counting the first and last page (reference) is required.

APA format word document.

Arial 12 font attached to the forum in the discussion board titled "Week 2 discussion questions".

A minimum of 2 evidence-based references no older than 5 years is required (not counting the class textbook).

Nies, Mary A., McEwen, Melanie (2015). Community/Public Health Nursing. Promoting the Health of the Populations. (6th ed).

ISBN: 978-0323-18819-7


Unformatted Attachment Preview

Chapter 8 Community Health Education Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. Health Education … … is any combination of learning experiences designed to predispose, enable, and reinforce voluntary behavior conducive to health in individuals, groups or communities. – Green and Kreuter, 2004 Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 2 Health Education’s Goals   To understand health behavior and to translate knowledge into relevant interventions and strategies for health enhancement, disease prevention, and chronic illness management To enhance wellness and decrease disability Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 3 Health Education’s Goals (Cont.)   Attempts to actualize the health potential of individuals, families, communities, and society Includes a broad and varied set of strategies aimed at influencing individuals within their social environment for improved health and well-being Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 4 Learning Theories    Humanistic theory helps individuals develop their potential in a self-directing and holistic manner. Cognitive theory recognizes the brain’s ability to think, feel, learn, and solve problems; theorists in this area train the brain to maximize these functions. Social learning is based on behavior that explains and enhances learning through the concepts of efficacy, outcome expectation, and incentives. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 5 Adult Learners       Need to know Concept of self Experience Readiness to learn Orientation to learning Motivation – Knowles (1980, 1989) Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 6 Health Education Models Health Belief Model (HBM)        Perceived susceptibility Perceived severity Perceived benefits Perceived barriers Self-efficacy Demographics Cues to action Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 7 Health Education Models (Cont.) Health Promotion Model (HPM)  Individual characteristics and behaviors ➢  Behavior—specific cognitions and affect ➢  Prior behaviors, personal factors Activity-related affect, interpersonal influences, situational factors, commitment to plan of action, perceived self-efficacy, immediate competing demands and preferences, perceived benefits of health-promoting behaviors, perceived barriers to health-promoting behaviors Behavioral outcome ➢ Health-promoting behavior Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 8 Model of Health Education Empowerment … nurses cannot assign power and control to the individual within the community but rather … the “power” must be taken on by the individual and community with the nurse guiding this dynamic process. – Van Wyk, 1999 Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 9 Model of Health Education Empowerment (Cont.)  Process includes examining ➢ Education ➢ Health literacy ➢ Gender ➢ Racism ➢ Class  Recognizes the structural and foundational changes that are needed to elicit change for socially and politically disenfranchised groups Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 10 Problem-Solving Education …  …centers on empowerment (Freire, 2005) ➢ Allows active participation and ongoing dialogue ➢ Encourages learners to be critical and reflective about health issues ➢ Involves individuals as subjects, not objects ➢ Increases health knowledge through a participatory group process  Involves activism on the part of the educator ➢ ➢ Facilitator-educator is a resource person and is an equal partner with the other group members Leads to sustainable lateral relationships Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 11 Participatory Action Research (PAR)   Goal of PAR is social change Embraces the use of community-based participatory methods ➢ Participation and action from stakeholders and knowledge about conditions and issues helps to facilitate strategies reached collectively Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 12 Community Empowerment    Community members take on greater power to create change Based on community cultural strengths and assets Attention must be given to collective rather than individual efforts to ensure that outcomes reflect voices of the community and truly make a difference in people’s lives Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 13 The Nurse’s Role in Health Education       Become a partner with individuals and communities Serve as catalyst for change Activate ideas Offer appropriate interventions Identify resources Facilitate group empowerment Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 14 Framework for Developing Health Communications Figure 8-1 Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 15 Health Education Model Stage I: Planning and strategy selection  Questions to Ask ➢ Who is the intended audience? ➢ What is known about the audience and from what sources? ➢ What are the communication and education objectives and goals? ➢ What evaluation strategies will the nurse use? ➢ What are the issues of most concern? ➢ What is the health issue of interest? Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 16 Health Education Model Stage I: Planning and strategy selection (Cont.)  Collaborative Actions to Take ➢ Review the available data. ➢ Get community partners involved. ➢ Obtain new data. ➢ Determine perceptions of health problems. ➢ Determine the community’s assets and strengths. ➢ Identify underlying issues and knowledge gaps. ➢ Establish goals and objectives. ➢ Assess resources. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 17 Health Education Model Stage II: Developing and pretesting concepts, messages, and materials  Questions to Ask ➢ What channels are best? ➢ What formats should be used? ➢ Are there existing resources? ➢ How can the nurse present the message? ➢ How will the intended audience react to the message? ➢ Will the audience understand, accept, and use the message? ➢ What changes may improve the message? Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 18 Health Education Model Stage II: Developing and pretesting concepts, messages, and materials (Cont.)  Collaborative Actions to Take ➢ Identify the messages and materials. ➢ Decide whether to use existing materials or produce new ones. ➢ Select channels and formats. ➢ Develop relevant materials with the target audience. ➢ Pretest the message and materials and obtain audience feedback. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 19 Health Education Model Stage III: Implementing the program  Questions to Ask ➢ ➢ ➢ ➢ ➢ ➢ ➢ ➢ How should we launch the health education program? How do we maintain interest and sustainability? How can we use process evaluation? What are the strengths of the health program? How can we keep on track within timeline and budget? How do we know if we have reached our intended audience? How well did each step work (process evaluation)? Are we maintaining good relationships with partners? Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 20 Health Education Model Stage III: Implementing the program (Cont.)  Collaborative Actions to Take ➢ Work with community organizations to enhance effectiveness. ➢ Monitor and track progress. ➢ Establish process evaluation measures. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 21 Health Education Model Stage IV: Assessing effectiveness and making refinements  Questions to Ask ➢ What was learned? ➢ How can outcome evaluation be used to assess effectiveness? ➢ What worked well, and what did not work well? ➢ Has anything changed about the intended audience? ➢ How can we refine methods, channels, and formats? ➢ What lessons were learned? What modifications could strengthen the health education activity? Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 22 Health Education Model Stage IV: Assessing effectiveness and making refinements (Cont.)  Collaborative Actions to Take ➢ Conduct outcome evaluations. ➢ Reassess and revise goals and objectives. ➢ Modify unsuccessful strategies or activities. ➢ Generate continual support from community groups. ➢ Provide justification for continuing/ending the program. ➢ Summarize in an evaluation report. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 23 Health Literacy Definitions Evolved Over Time  National Literacy Act (1991) ➢  Literacy is operationally defined as the ability to read and write at the fifth-grade reading level in any language and can be measured according to a continuum. IOM Report (2004) ➢ The capacity to obtain, interpret, and understand basic health information and services and the competence to use such information and services to enhance health Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 24 Health Literacy In 1999, the AMA’s Report of the Council on Scientific Affairs reported that patients with the most health care needs are often the least able to read and understand information that would enable them to function successfully within the health care system. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 25 Health Literacy (Cont.)  Health literacy is about empowerment … ➢ ➢ ➢ Having access to information, knowledge, and innovations Increasingly important for social, economic, and health development A key public health issue in the delivery of safe, effective care Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 26 Low Literacy        Increases the use of health care services Decreases self-esteem; increases shame and stigma Adversely affects outcomes and treatment of some medical conditions Poses barriers to obtaining informed consent Impacts participation in research Leads to health care and linguistic isolation Impedes patient-provider communication Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 27 Literacy Concerns    Serious mismatch exists between the reading levels of materials and patient’s reading skills. Materials often fail to incorporate the intended audience’s cultural beliefs, values, languages, and attitudes. Low literacy prevents many from gaining the full benefits of health care. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 28 Literacy Concerns (Cont.)   Inability to read and understand instructions influences self-care abilities and health and wellness. Individuals with very low literacy skills are at an increased risk for poor health, which contributes to health disparities. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 29 Levels for Interventions  Functional/basic literacy ➢  Communicative/interactive literacy ➢  Increasing basic reading/writing skills Understanding and using information with providers Critical literacy* ➢ Analyzing and using information in life situations *Most important because it increases empowerment and success in everyday situations Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 30 Helpful Tips for Effective Teaching       Assess reading skills Determine what client needs to know Identify motivating factors Stick with essentials Set realistic goals and objectives Use clear and concise language      Develop a glossary of common words Space teaching over time Personalize health messages Incorporate methods of illustration, demonstration, and real-life examples Give and get Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 31 Helpful Tips for Effective Teaching (Cont.)         Summarize often Be creative Use appropriate resources and materials Put patients at ease Praise patients Be encouraging Allow time for questions Employ teach-back methods    Remember that comprehension and understanding take time and practice Conduct learner verification Evaluate the teaching plan Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 32 Assess Materials  Become a Wise Consumer and User ➢ Evaluate health materials, including websites, before disseminating them ➢ Materials should strengthen previous teaching ➢ Materials should be used as an adjunct to health instruction Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 33 Assessing the Relevancy of Health Materials      Do materials match the intended audience? Are materials appealing and culturally and linguistically relevant? Do they convey accurate and up-to-date information? Are messages clear and understandable? Do messages promote self-efficacy and motivation? Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 34 Assessment of Reading Level  Assess reading levels of intended audience ➢ Rapid estimate of adult literacy in medicine (REALM) ➢ Single Item Literacy Screener (SILS) ➢ Short Assessment of Health Literacy for SpanishSpeaking Adults (SAHLSA)  Assess readability of educational resources ➢ ➢  SMOG readability formula Flesch-Kincaid formula (on most computers) Verify understanding of learner Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 35 Role of Social Media    Numerous platforms now available May reach diverse community constituents with important public health messages Potential to… ➢ ➢ ➢  Facilitate interactive communication Increase sharing of health information Personalize and reinforce health messages Can empower community members to make informed health decisions Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 36 Chapter 7 Community Health Planning, Implementation, and Evaluation Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. The Community as Client Figure 7-1 Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 2 Levels of Community Health Nursing Practice Client Example Characteristics Health Assessment Nursing Involvement Individual Lisa McDonald Individual with various needs Individual strengths, problems, and needs Client-nurse interaction Family Moniz family Family system with individual and group needs Individual and family strengths, problems, and needs Interactions with individuals and the family group Group Boy Scout troop Alzheimer’s support group Common interests, problems, and needs Interdependency Group dynamics Fulfillment of goals Group member and leader Population group AIDS patients in a given state Pregnant adolescents in a school district Large, unorganized group with common interests, problems, and needs Assessment of common problems, needs, and vital statistics Application of nursing process to identified needs Organization A workplace A school Organized group in a common location with shared governance and goals Relationship of goals, structure, communication, patterns of organization to its strengths, problems and needs Consultant and/or employee application of nursing process to identified needs Community Italian neighborhood Anytown, USA An aggregate of people in a common location with organized social systems Analysis of systems, strengths, characteristics, problems, and needs Community leader, participant, and health care provider Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 3 Health Planning Model Figure 7-2 Hogue (1985) Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 4 Steps in the Health Planning Model  Assessment ➢ ➢ ➢ ➢ ➢ ➢ ➢ ➢ Meet with group leaders of aggregate to clarify mutual expectations Determine sociodemographic characteristics Interview a key informant Consider both positive and negative factors Compare the aggregate with the “norm” Research potential problems Identify health problems and needs Prioritize the identified problems and needs to create an effective plan Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 5 Four Types of Needs to Assess  Expressed needs ➢  Normative needs ➢  Lack, deficit, or inadequacy of services determined by health professionals Perceived needs ➢  Demand for services and the market behavior of the targeted population Wants and desires expressed by audience Relative needs ➢ Gap showing health disparities between advantaged and disadvantaged population Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 6 Factors for Determining Priorities       Aggregates preferences Number of individuals affected by the health problem Severity of the health need or problem Availability of potential solutions Practical considerations such as skills, time, and available resources May use Maslow’s hierarchy of needs or levels of prevention to further refine priorities Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 7 Community Involvement Is Essential “Start where the people are!”  Five spheres of empowerment ➢ ➢ ➢ ➢ ➢ Interpersonal (personal empowerment) Intragroup (small group development) Intergroup (community) Interorganizational (coalition building) Political action – Labonte (1994) Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 8 Steps in the Health Planning Model (Cont.)  Planning ➢ ➢ ➢ Determine the intervention levels • Subsystem, aggregate system, and/or suprasystem Plan interventions for each system level • Primary, secondary, or tertiary levels of prevention Validate the practicality of the planned interventions according to available resources • Personal, aggregate, and suprasystem Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 9 Development of Goals and Objectives   Goals—where we want to be Objectives—steps needed to get there ➢ ➢ ➢ ➢ Measurable Specific measures Instructions to guide population Used to measure outcomes Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 10 Steps in the Health Planning Model (Cont.)  Intervention ➢ Often the most enjoyable stage for the nurse and the clients ➢ Implementation should follow the initial plan ➢ Should include a variety of strategies ➢ Prepare for unexpected problems Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 11 Interventions by Type of Aggregate and System Level Project Type of Aggregate System Level for Intervention Rehabilitation group Group Subsystem and aggregate system Textile industry Organization Aggregate system and suprasystem Crime watch Group, organization, and population group Aggregate system and suprasystem Bilingual students (case study) Community Aggregate system and suprasystem Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 12 Steps in the Health Planning Model (Cont.)  Evaluation ➢ ➢ ➢ ➢ Include the participant’s verbal or written feedback and the nurse’s detailed analysis Reflect on each previous stage to determine the plan’s strengths and weaknesses Evaluate both formative (process) and summative (product/outcome) aspects Communicate follow-up recommendations Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 13 Importance of Each Step in the Nursing Process  Aggregate assessments must be thorough. ➢ ➢  The nurse must complete careful planning and set goals that the nurse and the aggregate accept. ➢   Should elicit answers to key questions about the aggregate’s health and demographic profile Should compare this information with similar aggregates presented in the literature Mutual planning is very important. Interventions must include aggregate participation and must meet the mutual goals. Evaluation must include process and product evaluation and aggregate input. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 14 PRECEDE-PROCEED Model Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 15 Federal Legislation Affecting Health Planning      Hill-Burton Act Regional Medical Programs (RMP) Partnership for Health Program (PHP) Certificate of Need (CON) National Health Planning and Resources Development Act Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 16 Comprehensive Health Reform  Patient Protection and Affordable Care Act (2010) ➢ Preventive services based on evidence-based recommendations ➢ National strategy to improve the nation’s health ➢ CMMS innovation center ➢ National quality improvement strategy for services and population health ➢ Improved access to care ➢ Reduction in the growth of Medicare spending ➢ National workforce strategy Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 17 Nurses’ Role     Work collaboratively with health planners to improve aggregate health Fuse technology with knowledge of health care needs and skills Become directly involved in the planning process Engage in aggregate-level projects Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 18 Chapter 5 Epidemiology Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. Epidemiology Is … … the study of the distribution and determinants of health and disease in human populations (Harkness, 1995) … the principal science of public health Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 2 Historical Perspective   Investigations of disease pattern in the community; comparing people who had disease or who remained healthy Person-Place-Time Model ➢ ➢ ➢ Person: “Who” factors, such as demographic characteristics, health, and disease status Place: “Where” factors, such as geographic location, climate and environmental conditions, political and social environment Time: “When” factors, such as times of day, week, or month and secular trends over months and year Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 3 Different Types of Epidemiology  Descriptive Epidemiology ➢ ➢ ➢  Study of the amount and distribution of disease Used by public health professionals Identified patterns frequently indicate possible causes of disease Analytic Epidemiology ➢ ➢ Examine complex relationships among the many determinants of disease Investigation of the causes of disease, or etiology Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 4 Epidemiological Triangle Figure 5-1 Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 5 Agent of Disease (Etiologic Factors)  Nutritive elements ➢  Chemical agents ➢  Poisons, allergens Physical agents ➢  Excesses, deficiencies Ionizing radiation, mechanical Infectious agents ➢ Metazoa, protozoa, bacteria, fungi, rickettsia, viruses Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 6 Host Factors–Intrinsic Factors (Susceptibility, or Response to Agent)       Genetic Age Sex Ethnic group Physiological state Prior immunological experience ➢   Active/, passive Intercurrent or preexisting disease Human behavior Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 7 Environmental Factors— Extrinsic Factors… … influence existence of the agent, exposure, or susceptibility to agent  Physical environment  Biological environment ➢  Human populations, flora, fauna Socioeconomic environment ➢ Occupation, urbanization and economic development, disruption Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 8 Wheel Model of Human-Environment Interaction Figure 5-2 Redrawn from Mausner JS, Kramer S: Mausner and Bahn epidemiology: an introductory text, ed 2, Philadelphia, 1985, Saunders. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 9 Web of Causation Figure 5-3 From Friedman GD: Primer of epidemiology, ed 4, New York, 1994, McGraw-Hill. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 10 Ecosocial Approach   Emphasize the role of evolving macro-level socioenvironmental factors along with microbiological process in understanding health and illness (Smith & Lincoln, 2011) Challenges the more individually focused risk factor approach to understanding disease origins Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 11 Calculation of Rates  Rates are arithmetic expressions that help practitioners consider a count of an event relative to the size of the population from which it is extracted ➢ ➢ Number of health events in a specified period Population in same area in same specified period • Proportion multiplied by a constant (k) • For example, the rate can be the number of cases of a disease occurring for every 1000, 10,000 or 100,000 people in the population ➢ Can make meaningful comparisons Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 12 Morbidity Rates  Incidence rates ➢ ➢ New cases or conditions Attack rate • Number of new cases of those exposed to the disease  Prevalence rates ➢ All cases of a specific disease or condition at a given time Figure 5-4 Redrawn from Morton RF, Hebel JR, McCarter RJ: A study guide to epidemiology and biostatistics, ed 3, Gaithersburg, MD, 1990, Aspen Publishers. Prevalence Pot The relationship between incidence and prevalence Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 13 Morbidity Rates (Cont.) Incidence Rate Number of new cases _in given time period × 1000 Population at risk in same time period ___75___ = 0.02 4000–250 0.02 × 1,000 = 20 per 1000 per time period Prevalence Rate Number of existing cases Total Population 250 _____ = 0.0625 4000 0.0625 × 1000 = 62.5 per 1000 Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 14 Mortality Rates (routinely collected birth and death rates)      Other rates Crude rates Age-specific rates Age-adjusted rates or standardization of rates Proportionate mortality ratio (PMR) Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 15 Number of deaths in year × 100,000 Total population size _1720_ = 0.0086 200,000 Number of births in year × 100,000 Total population size _2900_ = 0.0145 200,000 Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 16 Concept of Risk   Risk—probability of an adverse event Risk factor ➢ ➢  Attributable risk ➢  Refers to the specific exposure factor Often external to the individual Estimate of the disease burden in a population Relative risk ratio ➢ Divide the incidence rate of disease in the exposed population by the incidence rate of disease in the nonexposed population. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 17 Use of Epidemiology  Disease prevention ➢ Primary prevention • Health promotion and specific prevention ➢ Secondary and tertiary prevention ➢ Establishing causality ➢ Screening ➢ Surveillance Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 18 Use of Epidemiology (Cont.)  Health services ➢ ➢ ➢  Used to describe the distribution of disease and its determinants in populations Study population health care delivery Evaluate use of community health services Nurses must apply findings in practice ➢ ➢ Incorporate results into prevention programs for communities and at-risk populations Extend application into major health policy decisions Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 19 Community health nurses should exercise “social responsibility” in applying epidemiological findings, but this will require the active involvement of the consumer. Community health nurses collaborating with community members can combine epidemiological knowledge and aggregate-level strategies to affect change on the broadest scale. Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 20 Epidemiological Methods  Descriptive epidemiology ➢  Focuses on the amount and distribution of health and health problems within a population Analytic epidemiology ➢ Investigates the causes of disease by determining why a disease rate is lower in one population group than in another Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 21 Analytic Epidemiology  Observational studies ➢ ➢ ➢  Descriptive purposes Etiology of disease No manipulation by investigator Cross-sectional studies ➢ ➢ ➢ Sometimes called prevalence or correlational studies Examine relationships between potential causal factors and disease at a specific time Impossible to make causal inferences Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 22 Analytic Epidemiology (Cont.)  Retrospective studies ➢ ➢  Compare individuals with a particular condition or disease with those who do not have the disease Data collection extends back in time Prospective studies ➢ ➢ ➢ Monitor a group of disease-free individuals to determine if and when disease occurs Cohort shares a common experience within a defined time period Monitors cohort for disease development Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 23 Analytic Epidemiology (Cont.)  Experimental design ➢ Also called a Randomized Clinical Trial (RCT) • Subjects assigned to experimental or control group • Apply experimental methods to test treatment and prevention strategies • Ethical considerations with human subject rights review ➢ Also useful for investigating chronic disease prevention Copyright © 2015, 2011, 2007, 2001, 1997, 1993 by Saunders, an imprint of Elsevier Inc. 24
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APA Cover Page
Define epidemiology and describe the epidemiological triangle and other epidemiology tools in
disease control and prevention.
Discuss the use of epidemiology in disease prevention.
Define and describe the concept of "community as a client."
Describe and discuss the goals of health education within the community setting.
References

Attached.

Running head: COMMUNITY NURSING- EPIDEMIOLOGY

Community Nursing
Name:
Affiliation:
Course Code:
Instructor:
May 8, 2019

1

COMMUNITY NURSING- EPIDEMIOLOGY

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Question One
Epidemiology refers to the study of the number of times the diseases will occur in
different groups of the populations in a certain area. Therefore, one can conclude that
epidemiology is the analysis of how diseases are distributed and how health and
disease conditions are determined. In most cases it is shapes the policy decisions that
are evidence- based through identifying risk factors of the disease and the targets for
the preventive healthcare. The epidemiological triangle re...


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