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. Author manuscript; available in PMC: 2016 Aug 9.
Published in final edited form as: Neurotoxicol Teratol. 2012 Sep 18;34(6):554–559. doi: 10.1016/j.ntt.2012.09.003

Table 1.

First, second, third trimesters pcse and other significant predictors of behavior problems: adjusted analyses.

ASR scale First trimester PCSE (β=beta values, t=t-tests) Other significant covariates* (β=beta values, t=t-tests) R2
Externalizing 1st trimester b Sex (Male) (β=1.46, t=1.80) 0.04
Average cigarettes/day (β=0.07, t=2.05) Maternal education (β=−0.67, t=−2.20)
≥10 cigarettes/day (β=1.92, t=2.20) Maternal hostility (β=0.20, t=2.93)
Internalizing 1st trimester Age (β=−1.57, t=−2.43) 0.05
≥10 cigarettes/day (β=1.96, t=1.89) Race (Caucasian) (β=2.10, t=2.16)
Maternal education (β=−0.58, t=−1.72)
Maternal depression (β=0.15, t=2.92)
Aggression problems 1st trimester Maternal education (β=−0.36, t=−2.41) 0.05
Average cigarettes/day (β=0.05, t=2.58) Maternal hostility (β=0.12, t=3.49)
≥10 cigarettes/day (β=1.20, t=2.81)
Somatic problems 1st trimester b Age (β=−0.45, t=−2.43) 0.10
Average cigarettes/day (β=0.02, t=1.72) Race (Caucasian) (β=0.79, t=2.87)
≥10 cigarettes/day (β=0.70, t=2.33) Sex (female) (β=−1.07, t=−4.10)
Maternal education (β= −.0.22, t=−2.23)
Prenatal alcohol exposure (β=0.57, t=1.95)
ASR scale Second trimester PCSE (β=beta values, t=t-tests) Other significant covariates* (β=beta values, t=t-tests) R2

Internalizing 2nd trimester 0.07
Average cigarettes/day (β=0.08, t=1.87 Race (Caucasian) (β=3.03, t=2.86)
≥10 cigarettes/day (β=2.08, t=1.87) Prenatal alcohol exposure (β=5.36, t=2.05)
Prenatal marijuana exp. (β=3.90, t=2.02)
Maternal depression (β=0.14, t=2.50)
Withdrawn 2nd trimester Race (β=−0.65, t=−2.55)
Average cigarettes/day (β=0.02, t=1.83) Prenatal marijuana exp. (β=0.94, t=2.03)
≥10 cigarettes/day (β=0.56, t=2.08) Maternal depression (β=0.03, t=1.88)
Aggression problems 2nd trimester Age (β= −.053, t=−1.72) 0.03
Average cigarettes/day (β=0.05, t=2.59) Maternal education (β=−0.36, t=2.36)
≥10 cigarettes/day (β=1.14, t=2.50) Maternal hostility (β=0.11, t=2.91)
Somatic problems 2nd trimester b Age (β=−0.53, t=−2.73) 0.05
Average cigarettes/day (β=0.04, t=3.50) Race (Caucasian) (β=0.94, t=3.18)
≥10 cigarettes/day (β=0.97, t=3.12) Sex (female) (β=−1.06, t=−3.94)
Prenatal alcohol exposure (β=2.51, t=3.70)
ASR scale Third trimester PCSE (β=Beta values, t=t-tests) Other significant covariates (β=beta values, t=t-tests) R2

Aggression 3rd trimester Maternal education (β= −.0.29, t=−1.99) 0.05
Average cigarettes/day (β=0.03, t=1.94) Prenatal alcohol exposure (β=1.89, t=2.01)
≥10 cigarettes/day (β=1.00, t=2.43) Maternal hostility (β=0.13, t=3.82)
*

Significant covariates are reported with the identified PCSE exposure variables.