Table 2

Characteristics of women who did and did not stop smoking in pregnancy (n = 226). Figures are percentages if not otherwise stated


Women who stopped smoking (n = 77)
Women who did not stop smoking (n = 149)
p value
Univariate OR (95% CI)

<25 years
46.8
35.6
0.103
1.6 (0.9–2.8)
>25 years
53.2
64.4

1
Income <$25 000
56
65.8
0.156
0.7 (0.4–1.2)
Income >$25 000
44
34.2

1
Primiparous
55.8
32.9
0.001
2.6 (1.5–4.5)
Multiparous
44.2
67.1

1
Caucasian
90.9
96.6
0.068
0.3 (0.1–1.1)
Non-caucasian
9.1
3.4

1
Father smoked in pregnancy
61
75.5
0.025
0.5 (0.3–0.9)
Father did not smoke in pregnancy
39
24.5

1
<12 years education
46.1
62.8
0.016
0.5 (0.3–0.9)
>12 years education
53.9
37.2

1
Drank alcohol before pregnancy
87
72.3
0.012
2.6 (1.2–5.5)
Non-drinker before pregnancy
13
27.7

1
Alcohol during preg
40.3
38.9
0.846
1.1 (0.6–1.9)
No alcohol in preg
59.7
61.1

1
Cigs before preg <10/day
63.6
36.4

1
Cigs before preg >10/day
36.4
63.6
<0.001
0.3 (0.2–0.6)
Timing of pregnancy


0.045

Planned
44
37.3

1
Mistimed
41.3
32.4

1.1 (0.6–2.0)
Unplanned
14.7
30.3

0.4 (0.2–0.9)
Attend antenatal classes
33.8
52

1
Did not attend antenatal classes
66.2
48
0.009
0.5 (0.3–0.8)

Significant at p = 0.05. Significant figures in bold

Giglia et al. BMC Public Health 2006 6:195   doi:10.1186/1471-2458-6-195