Table 1.

Logistic regression results of socio-demographic variables and smoking status at term

Variable	Wald	p	OR
Professional status
Active worker
Stay-at-home mother	0.05	.822	1.25
Student	0.29	.587	0.49
Job-seeker	0.31	.577	0.39
Education level	3.57	.059	0.40
Income	3.38	.066	0.47
Age	0.43	.513	1.06
Marital statusa	0.00	.929	1.09
First-time motherb	1.41	.236	3.07
Planned birthb	0.32	.574	1.64
Living with a smokerb	0.36	.547	1.57

Note. Wald refers to Wald statistic for logistic regression; OR – odds ratio; ^a single – 1, couple – 2; ^b no – 1, yes – 2.