Epidemiology and Population Health NURS 6700 Study Notes
Important Note on Course Title: According to Walden University’s official academic catalog, NURS 6700 is officially titled Epidemiology and Population Health (5 credits). It emphasizes how epidemiologic concepts and methods inform evidence-based practice (EBP) in advanced nursing and population health contexts. The course explores disease distribution, etiology, study designs, data sources, measures of association, bias, ethics, and application to program development for population health issues.
If your syllabus or Canvas uses “Evidence-Based Practice” as a descriptive focus (or if you meant NURS 6052 – Essentials of Evidence-Based Practice, a more common EBP course), these notes integrate both perspectives. They blend core EBP principles with epidemiologic applications, as the catalog description states: “Advanced practice nurses frequently apply epidemiologic concepts to inform evidence-based practice.”
The notes follow a typical 11-week Walden graduate format, with key concepts, summaries, study tips, key terms, and assignment guidance. Use these alongside your required textbook (often Melnyk & Fineout-Overholt for EBP components) and course readings on epidemiology.
Course Overview & Learning Outcomes
Core Focus: Integrate epidemiologic methods with EBP to address population-level health problems, design interventions, and evaluate outcomes. Emphasis on scholar-practitioner model, social change, health equity, and translating evidence into population health programs.
Key Learning Outcomes (typical):
Apply epidemiologic principles to understand health/disease patterns in populations.
Differentiate research designs used in epidemiology and their relevance to EBP.
Critically evaluate evidence sources, measures (incidence, prevalence, risk ratios, odds ratios, etc.), bias, and confounding.
Formulate population health questions and develop program proposals using EBP frameworks.
Analyze ethical, cultural, and equity issues in population-based research and practice.
Use data to inform screening, prevention, chronic disease management, and emergency response.
Required Resources (common):
Melnyk, B. M., & Fineout-Overholt, E. (2023). Evidence-based practice in nursing & healthcare (5th ed.).
Gordis, L. Epidemiology (or similar epidemiology text) + Walden Library articles on study designs, measures, and population health.
Tools: PRISMA, CASP appraisal checklists, epidemiologic calculators.
Walden Expectations: APA 7th ed., scholarly writing, integration of social determinants of health (SDOH), and a culminating population health program proposal.
Weekly Study Notes
Week 1: Foundations of Epidemiology, Population Health, and Evidence-Based Practice
Key Concepts: Definition and history of epidemiology; descriptive vs. analytic epidemiology; population health vs. individual care; EBP models (Melnyk 7-step model, Iowa Model); relationship between epidemiology and EBP; Quadruple Aim linkage.
Core Ideas: Epidemiology studies distribution (who, where, when) and determinants (why) of health events. EBP integrates best evidence, clinical expertise, and patient/population preferences.
Key Terms: Incidence, prevalence, morbidity, mortality, endemic/epidemic/pandemic, social determinants of health.
Study Tips: Review CDC/WHO definitions. Reflect on a local population health issue in Nairobi or Kenya (e.g., infectious diseases, NCDs).
Assignment Guidance: Introductory discussion + identify a population health problem with preliminary EBP rationale.
Week 2: Epidemiologic Measures and Data Sources
Key Concepts: Measures of disease frequency (incidence rate, prevalence, attack rate); measures of association (relative risk, odds ratio, attributable risk); primary vs. secondary data sources (vital statistics, surveillance systems, registries).
Core Ideas: How to calculate and interpret rates; strengths/limitations of data sources in low-resource settings.
Key Terms: Crude vs. age-adjusted rates, standardization, person-time.
Study Tips: Practice calculations (use Excel or online epi tools). Consider Kenyan context (e.g., HIV surveillance data).
Assignment Guidance: Discussion on data sources; possible short paper calculating measures for a chosen condition.
Week 3: Observational Study Designs in Epidemiology
Key Concepts: Cross-sectional, case-control, cohort (prospective/retrospective) studies; ecological studies.
Core Ideas: When to use each design; temporality, selection bias, recall bias. Relevance to generating evidence for practice.
Key Terms: Odds ratio (case-control), relative risk (cohort), prevalence ratio.
Study Tips: Compare designs using a table (strengths, weaknesses, EBP applicability).
Assignment Guidance: Critique an observational study relevant to your topic.
Week 4: Experimental and Quasi-Experimental Designs; Levels of Evidence
Key Concepts: Randomized controlled trials (RCTs), community trials; quasi-experimental designs; hierarchy of evidence in epidemiology and EBP.
Core Ideas: Gold standard (RCTs) vs. real-world population studies; internal vs. external validity.
Key Terms: Randomization, blinding, intention-to-treat, CONSORT guidelines.
Study Tips: Use CASP or similar tools to appraise an RCT.
Assignment Guidance: Literature search strategy for your population health issue.
Week 5: Bias, Confounding, and Error in Epidemiologic Research
Key Concepts: Selection bias, information bias, confounding; effect modification; strategies to minimize error.
Core Ideas: How bias threatens validity of evidence used in EBP; adjustment techniques (stratification, multivariable regression).
Key Terms: Confounder, mediator, collider bias.
Study Tips: Create a directed acyclic graph (DAG) for your project variables.
Assignment Guidance: Critical appraisal of studies addressing bias in your topic area.
Week 6: Screening, Surveillance, and Secondary Prevention
Key Concepts: Principles of screening (Wilson-Jungner criteria); sensitivity, specificity, predictive values; public health surveillance systems.
Core Ideas: Applying EBP to screening programs; cost-effectiveness and equity.
Key Terms: Lead time bias, length bias, overdiagnosis.
Study Tips: Evaluate a screening program (e.g., cervical cancer in Kenya).
Assignment Guidance: Discussion on screening recommendations + project milestone (e.g., background/significance).
Week 7: Infectious Disease Epidemiology and Outbreak Investigation
Key Concepts: Transmission modes, reproductive number (R0), herd immunity; steps in outbreak investigation.
Core Ideas: EBP in infection prevention and control; lessons from COVID-19 or endemic diseases.
Key Terms: Epidemic curve, contact tracing, quarantine vs. isolation.
Study Tips: Review John Snow’s cholera investigation as classic EBP example.
Assignment Guidance: Implementation planning for your program proposal.
Week 8: Chronic Disease Epidemiology and Risk Factors
Key Concepts: Natural history of disease; multiple risk factor models; social-ecological model.
Core Ideas: Evidence-based interventions for NCDs (diabetes, hypertension, cancer) in diverse populations.
Key Terms: Attributable fraction, population attributable risk.
Study Tips: Link to SDOH and health disparities.
Assignment Guidance: Synthesis of evidence for your chosen issue.
Week 9: Disaster Epidemiology, Emergencies, and Global Health
Key Concepts: Epidemiology in disasters/emergencies; rapid needs assessment; complex humanitarian emergencies.
Core Ideas: Ethical considerations in crisis settings; building resilient systems through EBP.
Key Terms: Excess mortality, syndromic surveillance.
Study Tips: Consider East African contexts (floods, conflicts).
Assignment Guidance: Ethical analysis or equity discussion.
Week 10: Program Planning, Evaluation, and Dissemination
Key Concepts: Logic models, PRECEDE-PROCEED, RE-AIM framework; process/outcome/impact evaluation.
Core Ideas: Translating epidemiologic evidence into sustainable population health programs.
Key Terms: SMART objectives, fidelity, sustainability.
Study Tips: Align your proposal with Walden’s social change mission.
Assignment Guidance: Stakeholder presentation outline or draft proposal sections.
Week 11: Course Synthesis, Reflection, and Final Project
Key Concepts: Integration of epidemiology and EBP; future role of APNs in population health leadership.
Core Ideas: Personal growth as scholar-practitioner; dissemination strategies.
Assignment Guidance: Final Population Health Program Proposal (typically 10–15 pages) including: problem statement, literature synthesis (epidemiologic data + EBP), intervention plan, evaluation strategy, ethical considerations, and dissemination. Plus reflective journal.
Key Frameworks to Master
Melnyk’s 7 Steps of EBP: Cultivate inquiry → Ask PICOT → Search → Appraise → Integrate → Evaluate → Disseminate.
Epidemiologic Triad: Agent-host-environment.
EBP in Population Health: Use epi data to identify gaps, appraise evidence, implement at scale, evaluate outcomes.
Study & Success Tips for Walden NURS 6700
Weekly Routine: Read assigned chapters/articles early; complete discussion main post by mid-week; respond to peers thoughtfully with citations.
Project Thread: Choose a focused population health issue early (e.g., maternal mortality, childhood obesity, HIV in Kenya, non-communicable diseases). Build every assignment toward the final proposal.
Critical Appraisal: Always ask: Is the evidence valid? Reliable? Applicable to my population? Does it address equity?
APA & Writing: Use scholarly tone; integrate statistics with interpretation; cite recent (≤5 years) peer-reviewed sources.
Resources: Walden Library (CINAHL, PubMed, Cochrane); CDC Wonder, WHO data; epi calculators online.
Common Pitfalls: Confusing association with causation; ignoring bias; weak evaluation plans.
Sample PICOT for Population Focus (Adapt to Your Interest)
In adult residents of urban Nairobi (P), how does a community-based lifestyle intervention program (I) compared to standard care (C) affect incidence of type 2 diabetes (O) over 12 months (T)?
These notes provide a solid foundation. Review your specific syllabus/Canvas for exact weekly topics, rubrics, and due dates, as they may vary slightly by term or instructor.
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