|
|
 |
What is PedNSS/PNSS? - What is PNSS?
What data are collected and analyzed?
The PNSS collects data for demographic, maternal health and behavioral,
smoking/drinking, and infant health indicators from women during prenatal
and postpartum clinic visits in public health programs.
|
Health and Demographic Indicators |
|
Demographic Indicators |
Source of data (WIC, MCH, etc), race/ethnicity, woman’s age,
education, % poverty level, program participation and migrant
status |
Maternal Health
Indicators |
Prepregnancy BMI, maternal weight gain
anemia, parity, interpregnancy interval,
diabetes during pregnancy and
hypertension during pregnancy |
Maternal Behavioral
Indicators |
Medical care, WIC enrollment and
multivitamin consumption
|
Smoking/Drinking
Indicators |
Smoking, smoking changes, smoking in household and drinking |
Infant Health
Indicators |
Birthweight, preterm birth, full term low birthweight and
breastfeeding initiation |
|
Data Collection Procedures and Dissemination
During the prenatal clinic visit, demographic and maternal health and
behavioral data are collected and at the postpartum clinic visit, infant
health data describing the birth outcome are obtained. Each woman
contributes one record representing one pregnancy. The
PNSS record that includes both prenatal and postpartum data is collected
in the clinic and aggregated at the contributor or state level and then
submitted to CDC on a quarterly basis. A report is generated annually
that includes births for the calendar year, January 1 through December
31. The annual report includes a series of tables that summarize
demographic, behavioral and nutrition-related health indicators for each
contributing state, tribal government, or U.S. territory. CDC calculates
the distribution of demographic indicators and prevalence of maternal
and infant nutrition related health indicators and prenatal behaviors.
Some health indicators are further stratified by race/ethnicity, age and
education. In addition, geographic comparisons and trend analysis are
provided. Each contributor or state is encouraged to receive clinic,
county, region or metropolitan area level reports for dissemination to
local program managers. Dissemination of PNSS annual report enables
program managers to monitor and identify prevalent nutrition problems
and adverse behaviors in their communities.
PNSS Data Quality
CDC evaluates the completeness and quality of the data submitted from
contributors and provides them with a data quality report. CDC sends a
data quality report to the contributing state following receipt of the
quarterly submissions and after all data for the reporting period have
been submitted. The report details missing and miscoded data,
Biologically Implausible Values (BIVs) as well as other data quality
edits. The data quality report also contains edits pertaining to record
volume, problems with duplicate records, and critical errors. In
addition, data quality parameters have been developed for each data item
based on a variety of statistical measures including expected data
distributions, standard deviations, and z-scores. Contributor data must
meet specific data quality and completeness criteria to be included in
the national PNSS report.
Limitations of the PNSS Data
PNSS is a program-based surveillance system that includes data
routinely collected from federally funded public health programs serving
low-income pregnant women. Contributors voluntarily participate in PNSS.
Not all contributors for a specific public health program participate in
PNSS, for example not all states, U.S. territories, and tribal
governments that provide the WIC program participate in PNSS; therefore
the national PNSS report is not representative of all WIC programs.
Similarly, PNSS is not representative of all low-income pregnant women
or pregnant women in the general population. It is representative of the
population served by the public health program submitting the
surveillance data. It is essential data for use in planning,
implementing, monitoring, and evaluating the nutritional status of women
served by a specific public health program.
|
|
