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Published on: September 22, 2023
Bed-sharing at 3 months and breast-feeding at 1 year in southern Brazil
Iná S Santos1, Denise M Mota, Alicia Matijasevich
1Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, RS, Brazil. inasantos@uol.com.br
Insights
Bedsharing with infants at 3 months old was associated with continued breastfeeding at 12 months. This practice, known as bedsharing, helped protect against early weaning in infants.
Area of Science:
- Maternal and Child Health
- Pediatrics
- Public Health
Background:
- Breastfeeding is crucial for infant health and development.
- Understanding factors that promote sustained breastfeeding is essential for public health initiatives.
- Bedsharing practices are common in many cultures but have varying recommendations.
Purpose of the Study:
- To examine the relationship between bedsharing at 3 months postpartum and breastfeeding continuation at 12 months of age.
- To determine if bedsharing influences the likelihood of weaning before 12 months.
Main Methods:
- A cohort study of 4231 live births in Pelotas, Brazil, initiated in 2004.
- Mothers were interviewed at birth, 3 months, and 12 months regarding infant feeding and bedsharing habits.
- Analysis focused on single births breastfed at 3 months, using Poisson regression for multivariate analysis.
Main Results:
- The prevalence of breastfeeding at 12 months was higher among infants who bedshared at 3 months (59.2%) compared to those who did not (44%).
- Bedsharing was associated with a reduced risk of weaning: adjusted prevalence ratio (PR) for weaning was 0.75 (95% CI: 0.69-0.81).
- This protective effect was observed across exclusively, predominantly, and partially breastfed infants.
Conclusions:
- Bedsharing at 3 months of age demonstrated a protective effect against weaning up to 12 months.
- The findings suggest that bedsharing may be a factor supporting prolonged breastfeeding duration.
- Further research could explore the mechanisms and safety aspects of bedsharing in relation to breastfeeding.
Objective:
To investigate the association between bedsharing at age 3 months and breastfeeding (BF) at age 12 months.
Study Design:
Almost all children born in Pelotas, Brazil in 2004 (99.2%) were enrolled in a cohort study. At birth, age 3 months, and age 12 months, mothers were interviewed to gather information on sociodemographic, reproductive, BF, and bedsharing characteristics. Bedsharing was defined as habitual sharing of a bed between mother and child for the entire night or part of the night. The analysis was limited to children from single births who were breastfed at 3 months. Multivariate analyses were carried out using Poisson regression.
Results:
Of 4231 live births, 2889 were breastfed at age 3 months. The prevalence of BF at age 12 months was 59.2% in the children who bedshared at 3 months and 44% in those who did not (adjusted prevalence ratio [PR] for weaning= 0.75; 95% confidence interval [CI] = 0.69-0.81; P < .001). Among children who were exclusively breastfed at 3 months, 75.1% of those who also bedshared were still breastfed at age 12 months, versus 52.3% of those who did not bedshare (adjusted PR = 0.63; 95% CI = 0.53- 0.75; P < .001). The adjusted PR was 0.74 (95% CI = 0.60-0.90; P = .003) in children who were predominantly breastfed and 0.83 (95% CI = 0.76-0.90; P < .001) in those who were partially breastfed.
Conclusions:
Bedsharing at 3 months protected against weaning up to age 12 months.
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