Pregnancy Nutrition Surveillance System

Article Index

What is PNSS?

The Pregnancy Nutrition Surveillance System (PNSS) is a program-based public health surveillance system that monitors risk factors associated with infant mortality and poor birth outcomes among low-income pregnant women who participate in federally funded public health programs.


PNSS Health Indicators

Data on maternal health and behavioral risk factors and infant birth outcomes are collected on low-income women who participate in federally funded public health programs. Maternal health indicators include prepregnancy weight status, maternal weight gain, parity, interpregnancy intervals, anemia, and diabetes and hypertension during pregnancy. The behavior risk factors assessed are medical care, WIC Program enrollment, multivitamin consumption, smoking and drinking. Birth outcome data includes birthweight, preterm births, full term low birthweight and breastfeeding initiation. PNSS health indicators are collected during prenatal and postpartum clinic visits to monitor the prevalence of nutrition and behavioral risk factors related to infant mortality and poor birth outcomes. The definition for each indicator and the rationale for collecting the indicator are described below:

Maternal Health Indicators

Prepregnancy BMI
Maternal Weight Gain
Interpregnancy Interval
Gestational Diabetes
Hypertension During Pregnancy

Maternal Behavioral Indicators

Medical Care
WIC Enrollment
Multivitamin Consumption

Smoking/Drinking Indicators

Smoking Changes
Smoking in Household

Infant Health Indicators

Preterm Birth
Full term Low Birthweight
Breastfeeding Initiation