In a given year, a district recorded 60 deaths from tuberculosis. Using national age-specific rates applied to the district population, 100 deaths were expected. The standardized mortality ratio for tuberculosis in this district is:

• A 0.6
• B 60
• C 100
• D 167 ✓

Explanation

The standardized mortality ratio equals observed deaths divided by expected deaths, multiplied by 100. Here this is 60 divided by 100, times 100, giving 167. An SMR above 100 means the district experienced excess tuberculosis mortality compared with the reference population after age adjustment. Option A gives the raw ratio without multiplying by 100, which is incomplete reporting.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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