Incidence rate differs from prevalence in that incidence specifically measures:
- A Total existing cases in a population at a point in time
- B Cases that result in death from the disease
- C New cases occurring in a population over a specified time period ✓
- D Cases that have recovered from the disease
Correct answer: C. New cases occurring in a population over a specified time period
Explanation
Incidence measures the occurrence of new cases of a disease in a population over a defined time period, reflecting disease risk. Prevalence measures total existing cases (both new and old) at a point or period in time, reflecting disease burden. Incidence is essential for studying disease etiology.
Reference: Park's Textbook of Preventive and Social Medicine, 26th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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