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Pediatric and Pregnancy Nutrition Surveillance System
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Pediatric Data Tables
Pregnancy Data Tables
What Is PedNSS/PNSS?
 What Is PedNSS?
 What is PNSS?
Why was PNSS created?
Who participates in PNSS?
What data are collected and analyzed?
How is PNSS data used?
 PedNSS Health Indicators
 PNSS Health Indicators
How To...
 Read A Data Table
 Review Data Quality
 Interpret Data
 Disseminate Data
Additional Tools


This website is archived and available through May, 2016.
CDC discontinued the Pediatric and Pregnancy Nutrition Surveillance Systems (PedNSS and PNSS) at the end of 2012. These program-based surveillance systems monitored the nutritional status of low-income infants, children, and women in federally funded maternal and child health programs. The most recent annual national PedNSS and PNSS data tables available on this website are for calendar year 2011.

What is PedNSS/PNSS?
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.

Data Sources

PNSS uses existing data from the following public health programs for nutrition surveillance:

  • Special Supplemental Nutrition Program for Women, Infants and Children (WIC);
  • Title V Maternal and Child Health Program (MCH)

A majority of the data are from the WIC program that serves pregnant, breastfeeding, and postpartum women.

Data Collection

Data on maternal health indicators include pre-pregnancy weight status, maternal weight gain, parity, interpregnancy intervals, anemia, diabetes and hypertension during pregnancy. Data on maternal behavioral indicators include medical care, WIC enrollment, multivitamin consumption, smoking and drinking.

Surveillance Reports

Data on infant health indicators include birthweight, preterm births, full term low birthweight and breastfeeding initiation. The PNSS provides nutrition surveillance reports for the nation defined as "all participating contributors" as well as for each contributor. A contributor may be a state, U.S. territory, or a tribal government. Each contributor can receive more specific reports by clinic, county, local agency, region, or metropolitan area.

The goal of PNSS is to collect, analyze, interpret, and disseminate data to guide public health policy and action. PNSS information is used for priority setting and the planning, implementing, monitoring, and evaluating of public health programs.

The components of public health surveillance and resulting public health action include:

Graphic showing Surveillance (components: Ongoing collection; Analysis; Interpretation; and Dissemination) leading to Public Health Action (Components: Priority Setting; and Planning, implementing, monitoring and evaluating public health practice)

Page last reviewed: October 29, 2009
Page last updated: December 17, 2014
Content Source: Division of Nutrition, Physical Activity and Obesity, National Center for Chronic Disease Prevention and Health Promotion



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