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date: 04 March 2021

Cross-Sectional Study (Syn: disease frequency survey, prevalence study) 

A Dictionary of Epidemiology

Miquel Porta

A study that examines the relationship between diseases (or other health outcomes) and other variables of interest as they exist in a defined population at one particular time. The presence or absence of disease and the presence or absence of the other variables (or, if they are quantitative, their level) are determined in each member of the study population or in a representative sample at one particular time. The relationship between a variable and the outcome can be examined (1) in terms of the prevalence of the outcome in different population subgroups defined according to the presence or absence (or level) of the variables and (2) in terms of the presence or absence (or level) of the variables in the individuals with and without the outcome. Note that disease ... ...

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