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Published on: July 29, 2020
Breastfeeding and feeding patterns in three birth cohorts in Southern Brazil: trends and differentials
Cesar G Victora1, Alicia Matijasevich, Iná S Santos
1Programa de Pós-graduação em Epidemiologia, Universidade Federal de Pelotas, Pelotas, Brasil. cvictora@terra.com.br
Insights
Breastfeeding duration in Brazil significantly increased between 1982 and 2004, with exclusive breastfeeding rates also rising. However, current breastfeeding practices still fall short of international recommendations.
Area of Science:
- Pediatrics
- Public Health
- Epidemiology
Background:
- Breastfeeding is crucial for infant health and development.
- Trends in breastfeeding practices require ongoing monitoring to inform public health initiatives.
Purpose of the Study:
- To analyze changes in breastfeeding duration and complementary feeding practices over three decades in Pelotas, Brazil.
- To evaluate the impact of public health interventions on breastfeeding trends.
Main Methods:
- A comparative analysis of three population-based birth cohorts (1982, 1993, 2004).
- Home-based interviews around 12 months of age to collect data on breastfeeding duration and food introduction.
- Statistical analysis to compare trends across cohorts and demographic groups.
Main Results:
- Median breastfeeding duration increased from 3.1 to 6.8 months between 1982 and 2004.
- Exclusive breastfeeding at three months rose from negligible levels to one-third of infants by 2004, with accelerated growth post-1993.
- Breastfeeding patterns varied by socioeconomic status, with higher prevalence in higher-income families initially, shifting to lower-income families later in infancy.
Conclusions:
- Breastfeeding promotion activities appear to have positively impacted duration and exclusivity.
- Further interventions are needed to align breastfeeding practices with international guidelines.
- Targeted support is essential for low birth weight infants and those from low-income families.
Abstract:
Breastfeeding is fundamental for child health. Changes in the duration of breastfeeding are compared for three population-based cohorts of children born in 1982, 1993 and 2004 in the city of Pelotas, Southern Brazil. Samples of the 1982 and 1993 children and all of the children from the 2004 cohort study were sought at home when they were aged around 12 months. Both the duration of breastfeeding and the stage at which different kind of foods were regularly introduced were investigated. The median duration of breastfeeding increased from 3.1 to 6.8 months in this period. Exclusive breastfeeding at three months was practically non-existent in 1982 and had reached one third of infants by 2004. The increase was faster after 1993, suggesting an important impact made by promotion activities. Up to about 6-9 months, breastfeeding was more prevalent in high-income families, but after this age it became more common among the poor. Low birth weight babies were breastfeed for shorter durations. The duration of breastfeeding is still far short of international recommendations, justifying further campaigns. Special attention should be given to low birth weight babies and those from low-income families.
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