Obesity

Breastfeeding behaviours in women with obesity; associations with weight retention and the serum metabolome: a secondary analysis of UK Pregnancies Better Eating and Activity Trial (UPBEAT)

Int J Obes (Lond)Published Secondary analysis of the UPBEAT randomised trial

Authors' conclusion

Greater emphasis on enabling breastfeeding for women with obesity could improve duration, women's weight management and metabolic health. The lack of breastfeeding related anthropometric effects in Black women requires further investigation.

Study context

Population
Ethnically diverse cohort of women with obesity from UPBEAT, an RCT of an antenatal lifestyle intervention, UK
Participants
715 participants
Comparison
Breastfeeding behaviours by obesity class; any breastfeeding vs no breastfeeding at 6 months postpartum
Methodological detailscohort analysis, multi-centre
  • Cohort analysis
  • Multi-centre

Primary result

As reported in the abstract

6-months postpartum

Initiated breastfeeding

82%

591/715

Breastfeeding exclusively or partially at 6-month follow-up

40%

283/715

Further findings

OutcomeBMI class IDifference in mean (days) (95% CI)P value
Duration of exclusive breastfeeding by obesity classBMI class IIvs BMI class Imean 90.4 ± 64 days−15.8 (−28.5 to −3.1)P < 0.05
OutcomeDifference in mean (95% CI)P value
Duration of exclusive breastfeeding by obesity classBMI class IIIvs BMI class I−16.7 (−32.0 to −1.35)P < 0.05
OutcomeReduced weight retention (kg) (95% CI)P value
Weight retention, any breastfeeding vs no breastfeeding · 6-months postpartum−1.81 (−0.75 to −2.88)P < 0.05

Metabolome and anthropometry, any breastfeeding vs no breastfeeding · 6-months postpartum

Any breastfeeding associated with improvements in metabolites towards a healthier profile and reduced anthropometric measures, incl. mid-upper arm and hip circumferences
Breastfeeding related changes in anthropometry not evident in women of Black ethnicity

Original publication

Breastfeeding behaviours in women with obesity; associations with weight retention and the serum metabolome: a secondary analysis of UPBEAT. Int J Obes (Lond). Published 24 July 2024. doi:10.1038/s41366-024-01576-6

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