Epidemiology — Flashcards

_____ is the best method to assess causality

hookworm is considered severe public health problem when there are _____ eggs/gm of stool

types of non randomised trials are

randomisation removes _____ bias

What equation is used to calculate specificity using the table below? _____

known confounder is treated with _____ and _____

formula for PPV(positive predictive value)

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prevalence of RHD in 6-14 years age group is _____/1000 population

a cross sectional study starts with _____