Table 2

 Demographic and birth variables

Group
Physical abuseNormal comparison
M, mean; SE, standard error.
Age at testing (mth)
    M35.2529.74
    SD19.8019.89
    Mdiff5.51
    SEdiff6.21
Gestational age
    M37.8939.23
    SD3.391.09
    Mdiff1.34
    SEdiff0.83
Weight at birth
    M6.527.10
    SD1.660.73
    Mdiff0.58
    SEdiff0.42
Gender (males)108
Hollingshead Four Factor
    I–III66
    IV–V1313