Question

List four major characteristics of epidemiologic study designs ?

then ,state in which ways that case control, cross-section study designs differ from one another?

Answer 1

1. Disease surveillance and surveys

2. Ecological

3. Longitudinal (a. Cohort (follow-up) b. Case–control (case–comparison) )

4. Cross-sectional

In a case–control study, the specialist recognizes people having a ailment or wellbeing result of intrigue and a control or examination bunch of individuals without the ailment of interest; exposures and hazard components are assessed in these people. For a situation control study, an assortment of exposures can be contemplated, though in a companion study, an assortment of ailments can be contemplated.

In a cross-sectional investigation, introduction and infection data identify with a similar time frame; in these investigations, it may not continuously be right to assume that introduction went before illness. The cross-sectional examination configuration was utilized to research potential dangers of cardiovascular illness and regenerative and formative dangers.