Study guides
Epidemiology
2 guides for this subject — how to prepare, what to practise, and how to know it has gone in.
A practice question
Choose an answer and it is marked, with the explanation. From Epidemiology Practice Questions: 9 Worked Examples.
A cohort contributes 600 person-years of follow-up, during which 12 participants develop a disease for the first time. What is the incidence rate?
Incidence rate = new cases ÷ person-time = 12 ÷ 600 = 0.02 per person-year, or 20 per 1,000 person-years. The tempting 2% is a proportion and does not use the person-time denominator; it cannot be inferred without knowing the number of people at risk.
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Guides
- Epidemiology Flashcards: A Deck for Core MethodsStudy 18 practical epidemiology flashcards covering measures, study designs, bias, screening and treatment effects.
- Epidemiology Practice Questions: 9 Worked ExamplesPractise epidemiology questions on incidence, prevalence, study designs, test accuracy, confounding, treatment effects and confidence intervals.
Studying epidemiology? Build your epidemiology board from your own notes — the cards, papers and lectures are written from it. Free plan: 20 cards, a paper, a lecture and a viva to try.
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