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SPHL602 Review Exam Questions & Answers 2024/2025 $8.49   Add to cart

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SPHL602 Review Exam Questions & Answers 2024/2025

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SPHL602 Review Exam Questions & Answers 2024/2025 Epidemiology - ANSWERSthe study of the distribution and determinants of disease frequency in human populations and application of this to help control health problems Disease Frequency - ANSWERScount of cases Disease Distribution - ANSWER...

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  • November 22, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • SPHL602
  • SPHL602
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SPHL602 Review Exam Questions &
Answers 2024/2025

Epidemiology - ANSWERSthe study of the distribution and determinants of disease frequency in human
populations and application of this to help control health problems



Disease Frequency - ANSWERScount of cases



Disease Distribution - ANSWERSwho, when, where



Determinant - ANSWERSa characteristic that influences whether or not disease occurs



Epidemiologic Research Assumes that... - ANSWERS-disease is not random

-systematic investigation of different populations can identify causal and preventative factors

- making comparisons is cornerstone of systematic interventions



Descriptive Epidemiology - ANSWERSdescribes patterns of disease by person, place, and time



Cohort Study - ANSWERS-participants chosen based on exposure status



Experimental Study - ANSWERS- exposure is assigned to participants



Case Control Study - ANSWERS- cases with diseases and controls who generally do not have the disease
are chosen and past exposure to factor is determined



Choice of study design depends on: - ANSWERS- what do we already know

- frequency of exposure & disease

- time, cost, feasibility

, Assessing Validity - ANSWERS- random error: chance

- bias: systematic error

- confounding: mixing of effects



Random Error - ANSWERS-inference about experience of entire population based on study sample

- random variation from sample to sample

- p values and confidence intervals quantify amount of RE

-sample size determines degree to which chance affects findings



Bias - ANSWERS- source of error in determination of the association between the disease and exposure

- selection bias (how participants are selected)

- observation bias (how info is obtained)



Confounding - ANSWERS- not investigators fault

- mixing of effects between the association of the disease and third factor (confounder)



Hill's guidelines for assessing causation - ANSWERS- Strength of association

- Consistency

- Specificity

- Temporality

- Biological gradient

- Plausibility

- Coherence

- Experiment

- Analogy



Fixed Population - ANSWERS- membership is permanent and defined by an event

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