In a community survey of blood pressure measurement, a large number of individuals are found to be hypertensive although they were previously unaware of their condition and had never sought medical care for it. This situation best illustrates:
- A Iceberg phenomenon of disease ✓
- B Will Rogers phenomenon
- C Prevention paradox
- D Ecological fallacy
Correct answer: A. Iceberg phenomenon of disease
Explanation
The iceberg phenomenon states that disease in a community has a vast submerged portion of unrecognized cases (latent, subclinical and undiagnosed), with only the clinically apparent tip visible to health services. Hypertension is a classic example because it is usually silent. Will Rogers phenomenon refers to stage migration after improved diagnostics, and the prevention paradox is a property of population strategies, not case recognition.
Reference: Park's Textbook of Preventive and Social Medicine, 26th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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