TABLE 4

Percentage of Births With Selected Characteristics According to Race and Hispanic Origin of Mother, United States, Selected Years: 1990 and 2006 (Final) and 2007 (Preliminary)

All RacesNon-Hispanic WhiteNon-Hispanic BlackHispanica
200720061990200720061990b200720061990b200720061990b
Mother
    <20 y of age10.510.412.87.57.49.617.317.223.214.214.316.8
    ≥40 y of age2.62.61.22.92.91.22.12.10.82.02.01.2
    Unmarried39.738.528.027.826.616.971.670.766.751.349.936.7
    Diabetes during pregnancy4.22.14.02.23.71.84.32.0
    Pregnancy-associated
    Hypertension3.92.74.43.04.62.82.81.8
    Health care utilization
        Midwife-attended birthsc7.43.97.13.27.04.48.46.2
        Cesarean delivery rate31.831.122.732.031.323.433.833.122.130.429.721.2
Infant
    Birth weight
        VLBWd1.481.491.271.191.200.933.193.152.931.211.191.03
        LBWd8.28.37.07.27.35.613.814.013.36.97.06.1
    Gestational age
        Very preterm birthe2.042.041.921.641.661.334.084.084.631.821.801.69
        Preterm birthe12.712.810.611.511.78.518.318.518.912.312.211.0
Multiple births per 1000 total births
    Live births in twin deliveries (not percentage)32.122.636.022.936.826.721.818.0
    Live births in higher-order multiple deliveries (not percentage)1.50.72.10.90.90.50.80.4
  • Race and Hispanic origin are reported separately on birth certificates. Persons of Hispanic origin may be of any race. Race categories are consistent with the 1977 OMB standards. Twenty-seven states in 2007 and 23 in 2006 reported multiple-race data. Multiple-race data for these states were bridged to the single-race categories of the 1977 OMB standards for comparability with other states. — indicates that data are not available.

  • a Includes all persons of Hispanic origin of any race.

  • b Excludes data for New Hampshire and Oklahoma, which did not report Hispanic origin.

  • c Delivered by certified nurse midwives.

  • d VLBW is birth weight of <1500 g (3 lb, 4 oz), and LBW is birth weight of <2500 g (5 lb, 8 oz).

  • e Very preterm indicates birth before 32 completed weeks of gestation, and preterm indicates birth before 37 completed weeks of gestation.

  • Data source: Centers for Disease Control and Prevention/NCHS, National Vital Statistics System, natality.