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Published bySherman Walton
Modified about 1 year ago
Khairil Anuar Md. Isa Faculty of Health Sciences, UiTM
Observe at one particular time or over a period Exposure & outcome measured at the same time Also known as prevalence study Information obtained from the subjects only once
Population Sampled Unexposed Exposed No disease Disease
Strength ◦ Very quick and inexpensive to implement ◦ Useful for determining prevalence ◦ Appropriate for diagnostic test for validity
Weakness ◦ Difficulty in establishing links of causal effect ◦ Impractical for rare outcome
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