Concept:
Both Neonatal Mortality Rate (NMR) and Infant Mortality Rate (IMR) are indicators of child health and healthcare quality, but they differ based on the age group considered.
Difference between NMR and IMR:
\begin{center}
\begin{tabular}{|c|c|c|}
\hline
Feature &
Neonatal Mortality Rate (NMR) &
Infant Mortality Rate (IMR)
\hline
Definition & Deaths of newborns within first 28 days & Deaths of children under 1 year
\hline
Age group & 0–28 days after birth & 0–1 year after birth
\hline
Formula & \( \frac{\text{Neonatal deaths}}{\text{Live births}} \times 1000 \) & \( \frac{\text{Infant deaths}}{\text{Live births}} \times 1000 \)
\hline
Scope & Narrower indicator & Broader indicator
\hline
Focus & Maternal care, delivery conditions & Overall infant health and nutrition
\hline
\end{tabular}
\end{center}
Explanation:
Neonatal Mortality Rate (NMR):
It measures deaths occurring within the first 28 days of life. It mainly reflects the quality of prenatal care, childbirth practices, and immediate postnatal care.
Infant Mortality Rate (IMR):
It includes all deaths of children before completing one year of age. It reflects overall healthcare, nutrition, sanitation, and immunization.