Which method is used to study the following timeline?
A. Cohort Study
B. Cross sectional study
C. Randomized Control Trials
D. Interventional Studies
Ans. A.Cohort Study
- The image represents Natural history of disease that refers to the progression of a disease process in an individual over time, in the absence of treatment.
- Timeline shows state of susceptibility, exposure, subclinical disease in which pathologic changes takes place, onset of symptoms, followed by usual time of diagnosis, clinical disease, followed by recovery, disability, or death.
- Longitudinal studies are used to study natural history of disease.