Epidemiology — Flashcards

types of non randomised trials are

randomisation removes _____ bias

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

formula for PPV(positive predictive value)

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

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

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known confounder is treated with _____ and _____

_____ is the best method to assess causality

_____ is the probability that when the disease is present, the test is positive