Guest guest Posted May 25, 2010 Report Share Posted May 25, 2010 Dear members Disease surveys: Morbidity surveys primarily measure the prevalence of a disease in a population. This is done by examining a sample of the population in detail; the methods of sample selection must ensure that the sample is representative of the population of interest. Cross-sectional surveys are limited to observations at one single point in time; they are thus descriptive, which is fine for establishing the prevalence of a disease. However, causal inferences are very hard to draw from them. The UK conducts a 10-yearly national survey of morbidity determined in general practices and also regular health surveys of the general population. Tarun Wadhwa Quote Link to comment Share on other sites More sharing options...
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