Table 2.

Main Effect of Treatment on Child Secondhand Smoke Exposure

Child cotinine
	Complete data only (N=198) F(10, 187)=7.09, p<.001. R2=.28	Multiple imputation (N=300) F(10, 261.8)=5.84, p<.001
Predictor	Coefficient (CI 95%)	Coefficient (CI 95%)
Treatment	−0.177 (−0.333 to −0.022)*	−0.183 (−0.346 to −0.021)*
Other smokers in home	0.102 (−0.049 to 0.252)	0.114 (−0.035 to 0.263)
Nicotine dependence	−0.023 (−0.060 to 0.015)	−0.024 (−0.059 to 0.011)
Home smoking ban	−0.283 (−0.455 to −0.110)**	−0.293 (−0.471 to −0.114)**
Stressful life events	0.019 (0.006 to 0.033)**	0.018 (0.005 to 0.031)**
SHSe message dosage	0.016 (−0.021 to 0.053)	0.017 (−0.020 to 0.053)
Child age	0.132 (−0.023 to 0.288)	0.101 (−0.054 to 0.255)
Depressive symptoms	−0.005 (−0.012 to 0.003)	−0.005 (−0.123 to 0.002)
Marital status	−0.001 (−0.193 to 0.191)	0.020 (−0.172 to 0.211)
Log cotinine baseline	0.419 (0.270 to 0.567)***	0.365 (0.221 to 0.510)***

Reported child SHSe from maternal smoking (cigarettes/day).
	Complete data only (N=226) F(10, 215)=12.45, p<.001. R2=.367	Multiple imputation (N=300) F(10, 277.18)=14.09, p<.001.
Predictor	Coefficient (CI 95%)	Coefficient (CI 95%)
Treatment	−0.585 (−1.136 to −0.034)*	−0.565 (−1.084 to −0.045)*
Other smokers in home	−0.543 (−1.080 to 0.008)*	−0.522 (−1.019 to −0.024)*
Nicotine dependence	0.375 (0.246 to 0.510)**	0.356 (0.226 to 0.487)**
Home smoking ban	−1.31 (−1.923 to −0.691)**	−1.579 (−2.183 to −0.974)***
Stressful life events	0.022 (−0.026 to 0.068)	0.017 (−0.030 to 0.064)
SHSe message dosage	−0.023 (−0.155 to 0.109)	−0.028 (−0.157 to 0.101)
Child age	0.070 (−0.471 to 0.610)	0.129 (−0.367 to 0.625)
Depressive symptoms	0.011 (−0.014 to 0.036)	0.007 (−0.015 to 0.030)
Marital status	0.610 (−0.075 to 1.293)	0.601 (−0.046 to 1.248)
Cigs exposed at baseline	0.116 (0.051 to 0.181)***	0.115 (0.052 to 0.179)***

^*Note: p<0.05;

^**p<0.01;

^***p<0.001