Table 5.

Percentage Distribution of Mother's Demographic Characteristics, Insurance Status, and Infant's Birth Weight for the Intervention and Comparison Groups at Randomization and Quasi-experimental Sites

Randomization SitesQuasi-experimental SitesAll Sites (n = 5563)
Intervention (n = 1133)Comparison (n = 1102)All
(n = 2235)
Intervention (n = 1829)Comparison (n= 1499)All
(n = 3328)
Mother's age*,,,§
 19 y or less15.215.015.112.812.212.613.6
 20–29 y53.051.552.346.654.550.251.0
 30 y or more31.833.532.640.633.237.335.4
Mother's education*,,,§
 11 y or less15.816.116.017.121.619.217.9
 High school graduate30.829.230.022.227.124.426.7
 Some college/vocational/school30.331.030.626.429.027.628.8
 College graduate23.123.723.434.222.328.826.6
Mother's race*,,,§
 White61.862.362.159.649.755.257.9
 Black/African American25.024.224.622.226.924.324.4
 Asian/Native American4.14.24.25.63.64.74.5
 Other9.09.39.212.619.815.813.2
Mother's ethnic origin,
 Hispanic18.520.419.517.924.120.720.2
Mother's marital status*,,§
 Married61.663.462.567.762.665.464.2
Live birth order
 First47.045.646.447.145.746.546.4
Insurance during pregnancy*
 Medicaid36.336.136.230.027.328.831.8
Infant's birth weight*,§
 <2500 g7.97.17.56.45.66.06.6
  • * Difference is significant between randomization and quasi-experimental design sites.

  • Difference is significant between intervention and comparison families for quasi-experimental design sites.

  • Difference is significant between intervention and comparison families for randomization sites.

  • § Data for up to 4% of respondents may be missing for these variables. These missing data were excluded from the denominator for purposes of calculating percentages.

  • For age, education, and race, the total number of children in the sample is 5565, all children enrolled.