Table 4.

Multiple Linear Regression Results for Mother-Rated PDD Scores^a,^b

Independent Variable	β	Unstandardized B Coefficient	95% CI for B	P Value
Preschool BDI	0.036	< 0.001	−0.002 to 0.002	.646
Postpartum antidepressant (yes/no)	0.124	0.027	−0.008 to 0.061	.131
Prenatal tobacco	0.243	< 0.001	< 0.001 to < 0.001	.002
Prenatal SRI (drug weeks)	0.163	0.001	< 0.001 to 0.002	.048

^aPDD subscale score reflects a T score with a mean of 50 and an SD of 10. Bolded values show significance at P < .05, t = 2.00.

^bThe following variables were tested as covariates and were not significantly associated with the PDD: child's age; child's gender; mother's age; mother's marital status; number of adults and children living in the home; mother's work status; average hours mother worked per week; whether the child attended a structured early learning program; maternal depressive symptoms (BDI) at preschool visit; area under the curve measures for prenatal exposure to marijuana, alcohol, caffeine, bupropion, mood stabilizers, anxiolytics, and hypnotics; postpartum exposure to bupropion, mood stabilizers, anxiolytics, and hypnotics; birth weight; head circumference; Apgar scores; gestational age; delivery method; number of delivery complications; number of pregnancy complications; maternal prenatal measures of depressive symptoms, mood episodes, global assessment of functioning; and maternal epileptic status.

Abbreviations: BDI = Beck Depression Inventory, PDD = Pervasive Developmental Disorder subscale of the Child Behavior Checklist, SRI = serotonin reuptake inhibitor.