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. 2011 Feb;40(1):47-62.
doi: 10.1093/ije/dyq155. Epub 2010 Sep 17.

Infant-feeding patterns and cardiovascular risk factors in young adulthood: data from five cohorts in low- and middle-income countries

Caroline Hd Fall  1 , Judith B Borja, Clive Osmond, Linda Richter, Santosh K Bhargava, Reynaldo Martorell, Aryeh D Stein, Fernando C Barros, Cesar G Victora; COHORTS group
Collaborators, Affiliations

Infant-feeding patterns and cardiovascular risk factors in young adulthood: data from five cohorts in low- and middle-income countries

Caroline Hd Fall et al. Int J Epidemiol. 2011 Feb.

Abstract

Background: Infant-feeding patterns may influence lifelong health. This study tested the hypothesis that longer duration of breastfeeding and later introduction of complementary foods in infancy are associated with reduced adult cardiovascular risk.

Methods: Data were pooled from 10 912 subjects in the age range of 15-41 years from five prospective birth-cohort studies in low-/middle-income countries (Brazil, Guatemala, India, Philippines and South Africa). Associations were examined between infant feeding (duration of breastfeeding and age at introduction of complementary foods) and adult blood pressure (BP), plasma glucose concentration and adiposity (skinfolds, waist circumference, percentage body fat and overweight/obesity). Analyses were adjusted for maternal socio-economic status, education, age, smoking, race and urban/rural residence and infant birth weight.

Results: There were no differences in outcomes between adults who were ever breastfed compared with those who were never breastfed. Duration of breastfeeding was not associated with adult diabetes prevalence or adiposity. There were U-shaped associations between duration of breastfeeding and systolic BP and hypertension; however, these were weak and inconsistent among the cohorts. Later introduction of complementary foods was associated with lower adult adiposity. Body mass index changed by -0.19 kg/m(2) [95% confidence interval (CI) -0.37 to -0.01] and waist circumference by -0.45 cm (95% CI -0.88 to -0.02) per 3-month increase in age at introduction of complementary foods.

Conclusions: There was no evidence that longer duration of breastfeeding is protective against adult hypertension, diabetes or overweight/adiposity in these low-/middle-income populations. Further research is required to determine whether 'exclusive' breastfeeding may be protective. Delaying complementary foods until 6 months, as recommended by the World Health Organization, may reduce the risk of adult overweight/adiposity, but the effect is likely to be small.

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Figures

Figure 1
Figure 1
Associations of duration of breastfeeding with SBP in the four cohorts with available data, and in the pooled data
Figure 2
Figure 2
Associations of age of introduction of complementary foods with adult waist circumference (a and b), and subscapular skinfold measurement (c and d) (fully adjusted models) in the four cohorts with available data separately and pooled
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Comment in

References

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