Direct standardization of death rates requires age-specific death rates for:
A. The standard population only
B. The study population only
C. Neither; crude rates suffice
D. Both study and standard populations
Answer: Option B
Solution (By JKSSB Mock Tests)
Direct standardization uses the study population's age-specific death rates applied to the standard population's age structure; thus, only the study population's age-specific rates are needed.
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