Smoking Behaviour before, during, and after Pregnancy: The Effect of Breastfeeding

Table 3

Logistic regression for smoking behaviour before pregnancy, for quitting smoking during pregnancy and for relapsing within 12 months from partum.

Characteristics	All women 𝑁=2546				Smoking before pregnancy 𝑛=580				Quitting smoking during pregnancy 𝑛=397
	Smoking before pregnancy 𝑛=580				Quitting during pregnancy 𝑛=397				Relapse within 12 months 𝑛=136
	Weighted % smoking	OR	95% CI		Weighted % quitting	OR	95% CI		Weighted % relapse	OR	95% CI
Mother’s age
≤30	25.8	1			65.9	1			38.4	1
>30	19.9	0.98	0.78	1.23	70.2	1.06	0.60	1.88	29.5	0.87	0.41	1.85
Education
low	28.2	1			59.5	1			38.5	1
medium	20.2	0.65	0.48	0.89	72.5	1.76	0.93	3.32	35.0	1.14	0.55	2.37
high	16.6	0.50	0.37	0.67	77.5	2.42	0.94	6.27	16.9	0.60	0.25	1.45
Marital status
married	17.8	1			76.0	1			32.2	1
single/sep/div/wid	34.7	2.30	1.75	3.02	55.8	0.38	0.21	0.71	32.7	1.00	0.57	1.75
Parity
primiparous	24.9	1			70.0	1			29.4	1
multiparous	24.6	1.06	0.71	1.59	66.2	0.61	0.39	0.96	38.4	1.28	0.55	2.96
Antenatal classes
no					66.8	1			42.3	1
yes					71.9	0.97	0.57	1.62	18.9	0.43	0.19	0.96
Kind of smoker
light					75.4	1			28.4	1
heavy					55.2	0.45	0.31	0.64	43.3	2.38	1.44	3.91
Any Breastfeeding
no									37.6	1
yes									21.5	0.43	0.19	0.94
Employment
no	23.5	1			62.8	1			52.5	1
yes-restart working	20.8	1.00	0.78	1.26	71.4	1.12	0.57	2.20	28.7	0.47	0.21	1.06
yes-not restart working									21.8	0.36	0.09	1.36