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This study investigates the socio-demographic characteristics of pregnant women who stop smoking …


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Biology Articles » Reproductive Biology » Which women stop smoking during pregnancy and the effect on breastfeeding duration » Tables

Tables
- Which women stop smoking during pregnancy and the effect on breastfeeding duration

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Table 1. Smoking history of women (n = 226) and their partners (n = 270) (%)
Smoking History
 Before Pregnancy
 During Pregnancy
 Week 4 postpartum


Women
 Partners
 Women
 Partners
 Women
 Partners
Smoked
 226 (100)
 270 (100)
 149 (66)
 245 (91)
 122 (54)
 172 (64)
Stopped smoking
 N/A
 N/A
 77 (34)
 25 (4)
 17 (8)
 N/A
N/A – This data not available.

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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)
46.8
 35.6
 0.103
 1.6 (0.9–2.8)
>25 years
 53.2
 64.4
1
Income 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
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 63.6
 36.4
1
Cigs before preg >10/day
 36.4
 63.6
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

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Table 3. Multivariate analysis of factors predicting likelihood of stopping smoking during pregnancy (n = 77)

OR of stopping smoking during pregnancy (CI 95%)
 p
Before pregnancy >10 cigarettes/day
 0.4 (0.2–0.7)
 0.002
Primiparous
 2.1 (1.0–4.0)
 0.036
Drank alcohol before pregnancy
 2.6 (1.0–6.7)
 0.049
Variables in the full model included age, income, mother's nationality, whether father smoked during the pregnancy, maternal years of education and whether the mother attended antenatal classes.

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Table 4. Stopping smoking during pregnancy and breastfeeding for longer than 6 months (n = 77)
Variable
 OR breastfeeding >6 months (95% CI)
 p
Stopping smoking in pregnancya
 2.8 (1.6–5.1)
 0.001
Stopping smoking in pregnancyb, c
 3.7 (1.6–8.8)
 0.003
aunadjusted
breference group is women who did not stop smoking
cadjusted for income, age of infant when mother returned to work, breastfeeding problems at or before week four postpartum, age of infant when pacifier first used and mothers infant feeding attitude (IIFAS).

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Source: BMC Public Health 2006, 6:195     


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