system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
For NRR to be 1 couple protection rate should be?
assistant
The correct answer is  Couple Protection Rate (CPR) is an indicator of the prevalence of contraceptive practice in the community the percentage of eligible couples effectively protected against childbih by one or the other approved methods of family planning sterilization iud,condom, ocp NRR = 1 can be achieved only if the CPR > 60% ref : park text book 21st ed