The Gross Reproduction Rate (GRR) and Net Reproduction Rate (NRR) differ because:
- A GRR counts all births; NRR counts only female births
- B GRR includes male children; NRR includes only female children
- C GRR does not account for mortality of women before end of reproductive age; NRR does ✓
- D GRR is based on census data; NRR is based on sample registration
Correct answer: C. GRR does not account for mortality of women before end of reproductive age; NRR does
Explanation
Both GRR and NRR count only female births per woman over her reproductive life (15–49 years). GRR assumes all women survive through the reproductive period (no mortality adjustment), whereas NRR adjusts for age-specific mortality rates of women during the reproductive years. An NRR of 1.0 means exact population replacement. NRR < GRR because some women die before completing their reproductive life. If NRR = 1.0, the population is exactly replacing itself.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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