ofthe following statements 1. Which about cohort studies is correct/true? Select

Question

ofthe following statements 1. Which about cohort studies is correct/true? Select all that apply a. Cohort studies may sample participants based on exposure status. b. Cohort studies need to have over 1000 participants to be valid. c. Individuals with the outcome of interest must not be enrolled in the study population. d. The comparison group may consist of an internal comparison group, the general e. f. g. population, or an external comparison group. Cohort studies are only used to estimate the prevalence of a condition, Loss to follow-up is one of the greatest challenges in conducting a cohort study. Cohort studies are efficient designs to study rare diseases

Explanation / Answer

the correct statements are:

a. Cohort studies may sample participants based on exposure status.

d. The comparison group may consist of an internal comparison group, the general population, or an external comparison group.

f. The loss to follow-up is one of the greatest challenges in conducting a cohort study.

g. Cohort studies are efficient designs to study rare diseases

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