Infant mortality rate is the number of deaths of children of the age ________.

Correct option is A

Correct Answer:
✅ (a) 0-1 year per thousand live births
Explanation:
The Infant Mortality Rate (IMR) is defined as the number of deaths of infants under one year of age per 1,000 live births in a given year.
It is a key indicator of the health status of a population and reflects the quality of maternal and child healthcare services in a country.
Formula for Infant Mortality Rate (IMR):

Why Other Options Are Incorrect?
❌ (b) 0-1 year per 100 live births
· IMR is measured per 1,000 live births, not per 100 live births.
❌ (c) 0-5 years per thousand live births
· This defines the Under-Five Mortality Rate (U5MR), not IMR.
· U5MR includes all deaths of children below 5 years.
❌ (d) 0-1 month per lakh live births
· This defines the Neonatal Mortality Rate (NMR), which considers deaths within the first 28 days per 1 lakh live births.
Conclusion:
The Infant Mortality Rate (IMR) measures the number of deaths of infants below 1 year per 1,000 live births. It helps assess child health, maternal care, and healthcare services.
Thus, the correct answer is (a) 0-1 year per thousand live births. ✅