TABLE 1

Baseline Comparison of Children Who Were Followed up at Age 6.5 Years in Experimental Versus Control Groups

VariableExperimental (n = 7108)Control (n = 6781)
Maternal age, %, y
    <2014.313.2
    20–3481.482.6
    ≥354.34.2
Maternal education, %
    Incomplete secondary4.43.0
    Complete secondary34.329.7
    Advanced secondary or partial university47.854.5
    Complete university13.512.9
Older children living in household, %
    058.854.5
    133.336.1
    ≥27.99.4
Maternal smoking during pregnancy, %2.61.6
Child gender (% male)51.452.0
Birth weight, mean ± SD, g3440 ± 4183441 ± 423