Print Email Facebook Twitter Breastfeeding duration related to practised contraception in the Netherlands Title Breastfeeding duration related to practised contraception in the Netherlands Author van Wouwe, J.P. Lanting, C.I. van Dommelen, P. Treffers, P.E. van Buuren, S. TNO Kwaliteit van Leven Publication year 2009 Abstract Aim: The aim of this study was to gain insight into contraception practised and related to breastfeeding duration. Methods: Mothers with infants up to 6 months received a questionnaire on infant feeding (breast or formula feeding) and contraception (hormonal or non-hormonal methods). Estimates of the time interval between resuming contraception and cessation of lactation was calculated by Chained Equations Multiple Imputation. Results: Of all women (n = 2710), 30% choose condoms, 22% the combined oral contraceptive pill (OCP) and few other methods. Breastfeeding was started by 80%, and 18% continued up to 6 months. Of the breastfeeding mothers, 5% used hormonal contraception; 7% of women who used hormonal contraception practised breastfeeding. After adjustment for background variables, the use of OCP is strongly associated with formula feeding: after delivery to the third month postpartum, the crude OR being 17.5 (95% CI: 11.3-27.0), the adjusted OR 14.5 (9.3-22.5); between the third and sixth month postpartum, respectively, 13.1 (95% CI: 8.6-19.9) and 11.7 (7.6-17.9). Of all breastfeeding women, 20-27% resumed OCP at 25 weeks postpartum and 80% introduced formula feeding. The time lag between these events is 6 weeks. Hormonal contraception was resumed after formula introduction. Conclusion: Mothers avoid hormonal contraception during lactation; they change to formula feeding 6 weeks before they resume the OCP. To effectively promote longer duration of breastfeeding, the BFHI needs to address contraception as practised. © 2008 The Author(s). Subject HealthJeugd en GezondheidBreastfeeding durationEpidemiologyImputationLactationPractised contraceptionLevonorgestrelOral contraceptive agentAdolescentAdultArtificial milkBarrier contraceptionCondomHormonal contraceptionInfant feedingLactation inhibitionMaternal behaviorNetherlandsOvulation inhibitionPuerperiumAdolescentAdultBreast FeedingConfidence IntervalsContraception BehaviorContraceptive AgentsFemaleHumansLactationMaternal BehaviorMiddle AgedNetherlandsOdds RatioQuestionnairesTime FactorsYoung Adult To reference this document use: http://resolver.tudelft.nl/uuid:62a40973-85c1-43d4-9662-5844e86ff77e DOI https://doi.org/10.1111/j.1651-2227.2008.01019.x TNO identifier 241342 ISSN 0803-5253 Source Acta Paediatrica, International Journal of Paediatrics, 98 (1), 86-90 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.