Several factors determine the appropriate follow-up duration in an epidemiological study:
1. Nature of the Disease: For acute conditions, a shorter follow-up might suffice, whereas chronic conditions necessitate longer periods. 2. Study Objectives: The research questions and objectives dictate the duration. For instance, studies aiming to explore long-term survival rates need extended follow-up. 3. Available Resources: Financial, logistical, and human resources available for the study can influence the feasible follow-up duration.
