Table 3.

Quitting attempts among the intervention and control subjects (% calculated as a fraction of all subjects in the given subgroup)

Variable	Intervention			Control
	N	n	%	N	n	%
All groups	152	120	78.9*	145	58	40.0
Education
Primary or vocational	125	95	76.0*	110	35	31.8
College or university	27	25	92.6*	35	23	65.7
Number of cigarettes/day smoked before the attempt
< 5	10	10	100	13	11	84.6
5–10	65	53	81.5*	82	35	42.7
>10	77	57	74.0*	50	12	24.0
Fagerström test
0–6	138	111	80.4*	143	58	40.6
7–9	14	9	64.3	2	0	0
Smoking in previous pregnancies
Primigravidas	76	67	88.2*	58	31	53.4
Yes	68	45	66.2*	74	19	25.7
No	8	8	100	13	8	61.5
Smoking husband
Yes	130	100	76.9*	111	38	34.2
No	22	20	90.9*	34	20	58.8

* statistically significant (p < 0.05) difference in distributions of groups intervention and control.