A community health team compares diarrhoeal disease rates among children, adults and older people. Which epidemiological variable is being examined?
Correct answer: A. Person distribution
- A. Person distribution
- B. Place distribution
- C. Time distribution
- D. Seasonal variation
Explanation
Person distribution describes disease occurrence according to characteristics such as age, sex, occupation or education. Place concerns location, while time concerns the period or trend of occurrence.
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About Epidemiology and Biostatistics
Epidemiology examines the distribution and causes of disease by person, place and time, using measures such as incidence, prevalence, mortality and case-fatality rates. Biostatistics covers data presentation, sampling, averages, variability, probability and interpretation of study results, while distinguishing association from causation.
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