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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: Drug Alcohol Depend. 2012 Dec 29;131(3):271–277. doi: 10.1016/j.drugalcdep.2012.11.019

Table 1.

Parameter estimates and their standard errors, adjusted odds ratios and their 95% confidence intervals, semi-partial η2, and p-values associated with the Tobacco Dependence Screener and Tobacco Dependence Screener X medication condition interaction effects (N=124)

Effect: Tobacco Dependence Screener Tobacco Dependence Screener X medication condition interaction
b SE AOR 95% CI η2 p b SE AOR 95% CI η2 p
Neonatal Outcomes
Treated for NAS [yes] .91 .81, 1.02 .11 1.11 .89, 1.40 .33
NAS peak score .11 .12 .01 .33 −.05 .24 .00 .93
Total amount of morphine (mg) 1.03 .93, 1.14 .59 .92 .61, 1.40 .72
Infant length of hospital stay (days) 1.0 .97, 1.07 .31 .99 .90, 1.08 .78
Head circumference (cm) .03 .05 .00 .60 −.05 .10 .00 .63
Days medicated for NAS (days) 1.04 .07, 1.10 .26 .92 .79, 1.07 .28
Birthweight (gm) 12.22 12.91 .01 .35 −9.9 26.12 .00 .70
Length (cm) .02 .01 .00 .85 −.06 .20 .00 .77
Pre-term birth [yes] .99 .85, 1.16 .98 .87 .62, 1.23 .43
Gestational age at delivery (weeks) 1.00 1.00, 1.00 .91 .99 .99, 1.00 .76
Apgar score at 1 minute 1.00 .99, 1.01 .85 1.00 .98, 1.02 .86
Apgar score at 5 minutes 1.00 1.00, 1.00 .43 1.00 .99, 1.01 .96
Maternal Outcomes
Cesarean section [yes] .93 .84, 1.04 .20 .98 .78, 1.22 .84
Maternal weight gain (kg) −.10 .17 .00 .56 .01 .34 .00 .97
Non-normal presentation [yes] 1.01 .85, 1.20 .94 .57 .35, .92 .05
Analgesia during delivery [yes] 1.00 .86, 1.16 .99 1.28 .95, 1.73 .11
Maternal drug screen at delivery [positive] 1.03 .86, 1.24 .75 1.29 .93, 1.80 .13
Medical complications at delivery [yes] .96 .87, 1.07 .47 .99 .79, 1.22 .92
Treatment discontinuation [yes] 1.00 .90, 1.11 .97 1.11 .99, 1.25 .07
Income from negative drug tests ($) 1.03 1.004, 1.05 .02 .93 .89, .97 <.01
Number of pre-natal visits 1.01 1.00, 1.03 .14 1.01 .97, 1.04 .73

Notes: b = unstandardized partial regression coefficient; SE = standard error for the regression coefficent; AOR = adjusted odds ratio; 95% CI = 95% Confidence Interval for the adjusted odds ratio; η2 = semi-partial η2 (a measure of the unique variance in the outcome measure explained by the effect of interest); p = p-value associated with the test of the regression coefficient. AORs and 95% CIs are reported for logistic and Poisson regression analyses, while η2 is reported for ordinary least squares analyses. In the case of logistic regression analysis, the reference group is indicated in [brackets].