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Effects of prolonged and exclusive breastfeeding on child behavior and maternal adjustment: evidence from a large, randomized trial.
Pediatrics. 2008 Mar; 121(3):e435-40.Ped

Abstract

OBJECTIVE

The objective of this study was to assess the long-term effects of breastfeeding on child behavior and maternal adjustment.

METHODS

We followed up children who were in the Promotion of Breastfeeding Intervention Trial, a cluster-randomized trial of a breastfeeding promotion intervention based on the World Health Organization/United Nations Children's Fund Baby-Friendly Hospital Initiative. A total of 17,046 healthy, breastfeeding mother-infant pairs were enrolled from 31 Belarussian maternity hospitals and affiliated polyclinics; 13,889 (81.5%) were followed up at 6.5 years. Mothers and teachers completed the Strengths and Difficulties Questionnaire and supplemental questions bearing on internalizing and externalizing behavioral problems. Mothers also responded to questions concerning their relationships to their partner and child and their breastfeeding of subsequently born children.

RESULTS

The experimental intervention led to a large increase in exclusive breastfeeding at 3 months (43.3% vs 6.4%) and a significantly higher prevalence of any breastfeeding at all ages up to and including 12 months. No significant treatment effects were observed on either the mother or the teacher Strengths and Difficulties Questionnaire ratings of total difficulties, emotional symptoms, conduct problems, hyperactivity, peer problems, or prosocial behavior or on the supplemental behavioral questions. We found no evidence of treatment effects on the parent's marriage or on the mother's satisfaction with her relationships with her partner or child, but the experimental intervention significantly increased the duration of any breastfeeding, and mothers in the experimental group were nearly twice as likely to breastfeed exclusively the next-born child for at least 3 months.

CONCLUSIONS

On the basis of the largest randomized trial ever conducted in the area of human lactation, we found no evidence of risks or benefits of prolonged and exclusive breastfeeding for child and maternal behavior. Breastfeeding promotion does, however, favorably affect breastfeeding of the subsequent child.

Authors+Show Affiliations

Department of Pediatrics, McGill University Faculty of Medicine, Montreal, Quebec, Canada. michael.kramer@mcgill.caNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18310164

Citation

Kramer, Michael S., et al. "Effects of Prolonged and Exclusive Breastfeeding On Child Behavior and Maternal Adjustment: Evidence From a Large, Randomized Trial." Pediatrics, vol. 121, no. 3, 2008, pp. e435-40.
Kramer MS, Fombonne E, Igumnov S, et al. Effects of prolonged and exclusive breastfeeding on child behavior and maternal adjustment: evidence from a large, randomized trial. Pediatrics. 2008;121(3):e435-40.
Kramer, M. S., Fombonne, E., Igumnov, S., Vanilovich, I., Matush, L., Mironova, E., Bogdanovich, N., Tremblay, R. E., Chalmers, B., Zhang, X., & Platt, R. W. (2008). Effects of prolonged and exclusive breastfeeding on child behavior and maternal adjustment: evidence from a large, randomized trial. Pediatrics, 121(3), e435-40. https://doi.org/10.1542/peds.2007-1248
Kramer MS, et al. Effects of Prolonged and Exclusive Breastfeeding On Child Behavior and Maternal Adjustment: Evidence From a Large, Randomized Trial. Pediatrics. 2008;121(3):e435-40. PubMed PMID: 18310164.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of prolonged and exclusive breastfeeding on child behavior and maternal adjustment: evidence from a large, randomized trial. AU - Kramer,Michael S, AU - Fombonne,Eric, AU - Igumnov,Sergei, AU - Vanilovich,Irina, AU - Matush,Lidia, AU - Mironova,Elena, AU - Bogdanovich,Natalia, AU - Tremblay,Richard E, AU - Chalmers,Beverley, AU - Zhang,Xun, AU - Platt,Robert W, AU - ,, PY - 2008/3/4/pubmed PY - 2008/3/21/medline PY - 2008/3/4/entrez SP - e435 EP - 40 JF - Pediatrics JO - Pediatrics VL - 121 IS - 3 N2 - OBJECTIVE: The objective of this study was to assess the long-term effects of breastfeeding on child behavior and maternal adjustment. METHODS: We followed up children who were in the Promotion of Breastfeeding Intervention Trial, a cluster-randomized trial of a breastfeeding promotion intervention based on the World Health Organization/United Nations Children's Fund Baby-Friendly Hospital Initiative. A total of 17,046 healthy, breastfeeding mother-infant pairs were enrolled from 31 Belarussian maternity hospitals and affiliated polyclinics; 13,889 (81.5%) were followed up at 6.5 years. Mothers and teachers completed the Strengths and Difficulties Questionnaire and supplemental questions bearing on internalizing and externalizing behavioral problems. Mothers also responded to questions concerning their relationships to their partner and child and their breastfeeding of subsequently born children. RESULTS: The experimental intervention led to a large increase in exclusive breastfeeding at 3 months (43.3% vs 6.4%) and a significantly higher prevalence of any breastfeeding at all ages up to and including 12 months. No significant treatment effects were observed on either the mother or the teacher Strengths and Difficulties Questionnaire ratings of total difficulties, emotional symptoms, conduct problems, hyperactivity, peer problems, or prosocial behavior or on the supplemental behavioral questions. We found no evidence of treatment effects on the parent's marriage or on the mother's satisfaction with her relationships with her partner or child, but the experimental intervention significantly increased the duration of any breastfeeding, and mothers in the experimental group were nearly twice as likely to breastfeed exclusively the next-born child for at least 3 months. CONCLUSIONS: On the basis of the largest randomized trial ever conducted in the area of human lactation, we found no evidence of risks or benefits of prolonged and exclusive breastfeeding for child and maternal behavior. Breastfeeding promotion does, however, favorably affect breastfeeding of the subsequent child. SN - 1098-4275 UR - https://www.unboundmedicine.com/medline/citation/18310164/Effects_of_prolonged_and_exclusive_breastfeeding_on_child_behavior_and_maternal_adjustment:_evidence_from_a_large_randomized_trial_ L2 - http://pediatrics.aappublications.org/cgi/pmidlookup?view=long&pmid=18310164 DB - PRIME DP - Unbound Medicine ER -