Skip Navigation Links
Centers for Disease Control and Prevention


 CDC Home Search A-Z Index
Pediatric and Pregnancy Nutrition Surveillance System
Site Map Topic Index Glossary Bibliography Help
Illustration of a mother and children
Home
Pediatric Data Tables
Pregnancy Data Tables
Publications
What Is PedNSS/PNSS?
How To...
 Read A Data Table
 Review Data Quality
Interpret Data
 What
 When
 Where
 Who
 Who and When
 Case Study: Overweight
 Case Study: Breastfeeding
 Case Study: Low Birthweight
 Disseminate Data
Additional Tools

How To... - Interpret Data - Case Studies - Low Birthweight
Who and When: Is low birthweight prevalence increasing or decreasing among racial and ethnic groups over time?

 
More info on Low Birthweight Case Study:
 Is low birthweight a health problem?
 Is it changing over time?
 Where is the problem?
 Who is affected?
 Is it changing among specific groups over time?
   

In addition to knowing who is at risk it is also helpful to determine how low birthweight prevalences have changed by race and ethnicity over time. The PNSS Table 23C, Summary of Trends in Infant Health Indicators by Race/Ethnicity, provides low birthweight trends for the most recent 10 years by race and ethnicity.


Sample: PNSS Table 23C, Summary of Trends in Infant Health Indicators by Race/Ethnicity

table showing prevalence of birthweight indicators by race/ethnicity and year

1 This table shows the 10 most recent years of data.
2 The prevalence of low birthweight is the highest for black infants compared to other racial and ethnic groups and it has remained the highest during the 10-year period from 1993 to 2002.

This line chart, derived from Table 23C, shows that the prevalence of low birthweight has remained stable for all race/ethnic groups from 1993 to 2002. Prevalence of low birthweight has been highest among black infants and the lowest  among Hispanic infants.

Trends in the prevalence of low birthweight*
by race and ethnicity
Trends in the prevalence of low birthweight by race and ethnicity

* Low Birthweight includes VLBW < 1500 g and LBW = 1500-<2500 g.


Who and When: Is low birthweight prevalence increasing or decreasing among racial and ethnic groups over time?

The prevalence of low birthweight has remained stable for all racial and ethnic groups from 1993 to 2002, indicating that there has been very little improvement in the prevalence of low birthweight during this time.


Summary

Despite the modest improvement in the state prevalence of low birthweight from 1993 to 2002, the low birthweight prevalence of 7.7% is still much higher than the Healthy People 2010 target of 5.0 percent so it is considered a health problem. The highest prevalence of low birthweight is for black infants and the lowest prevalence is for Hispanic infants. However, the trend for all racial and ethnic groups has remained stable from 1993 to 2002 indicating very little improvement of low birthweight in the state. This analysis of low birthweight showed that the race/ethnicity and age of the mother, her prepregnancy weight, weight gain during pregnancy, and smoking during pregnancy are associated with the prevalence of low birthweight infants. Of these demographic or health indicators, promotion of adequate weight gain and smoking cessation during pregnancy are appropriate interventions for the WIC program. Each of these health indicators can be impacted during pregnancy, particularly in mothers who enter care in the first trimester.

back to top

 

 



Policies and Regulations | Accessibility

CDC Home | Search | A-Z Index

United States Department of Health and Human Services
Centers for Disease Control and Prevention
National Center for Chronic Disease Prevention and Health Promotion
Division of Nutrition and Physical Activity

This page last updated March 04, 2010

United States Department of Health and Human Services
Centers for Disease Control and Prevention
National Center for Chronic Disease Prevention and Health Promotion
Division of Nutrition and Physical Activity