The relationship between maternal smoking and breastfeeding duration after adjustment for maternal infant feeding intention

• DOI: 10.1111/j.1651-2227.2004.tb02639.x
• Publication Date: 2010-08-07T01:15:41Z
• Authors: SM Donath; LH Amir
• Keywords: Odds

To investigate whether maternal smoking remains associated with decreased breastfeeding duration after adjustment for the mother's infant feeding intention.Pregnant women resident within Avon, UK, expected to give birth between 1 April 1991 and 31 December 1992 were recruited in a longitudinal cohort study. Main outcome measures included intention at 32 wk of pregnancy: first week, rest month months 2 4. Maternal was defined as any reported time during pregnancy. Data on initiation based questionnaire 6 mo postpartum, supplemented by data from 15-mo if necessary.Women who smoked pregnancy had an adjusted odds ratio 1.5 (95% CI: 1.3-1.7) not compared non-smokers (adjusting age, education intention). Survival analysis postpartum found that intended breastfeed less than 78% more likely stop given planning least 4 mo, while smokers 17% non-smokers.Although smoke are their infants non-smoking women, it appears this is largely due lower motivation rather physiological effect milk supply.