Question

For NRR to be 1 couple protection rate should be?

• A. 50%
• B. 60%
• C. 55%
• D. 75%

Answer 1

The Correct Option is B

To understand why a 60% couple protection rate ensures a Net Reproduction Rate (NRR) of 1, we must first grasp what NRR and couple protection rate mean.

Net Reproduction Rate (NRR): NRR measures average number of daughters a newborn girl is expected to bear during her lifetime, accounting for mortality and fertility patterns. An NRR of 1 indicates each generation of women is effectively producing one daughter, thus replacing themselves and keeping the population stable.

Couple Protection Rate: This is the percentage of couples effectively using contraception to control fertility.

When NRR is 1, it signifies population stability without growth or decline. Achieving NRR of 1 means maintaining replacement-level fertility, typically around 2.1 children per woman globally. Effective family planning through contraception helps regulate the birth rate, essential for controlling the fertility rate.

Why 60% protection rate relates to NRR of 1: In contexts where contraception and reproductive health services are effectively implemented, analysis shows maintaining a couple protection rate around 60% is necessary to achieve replacement level fertility.

This is a critical demographic target in public health aiming to balance population dynamics.

Correct Answer: 60%