TABLE 2

Characteristics of the Patients Used to Evaluate Up-to-Date Rates at 24 Months (N = 3217)

CharacteristicIntervention (N = 1669), %Control (N = 1548), %P
Race
    Black82.582.0.73
    White7.78.9.20
    Other9.89.0.45
Female gender48.149.7.36
Private insurance21.822.6.59
Chronic problem present23.822.6.43
    Asthma17.117.2.97
    Developmental delays3.23.7.51
Proportion of total study population for
    Site 121.619.5.15
    Site 226.627.7.51
    Site 322.721.7.52
    Site 429.231.1.23