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- Title
Early Infant Feeding and BMI Trajectories in the First 5 Years of Life.
- Authors
Zheng, Miaobing; Cameron, Adrian J.; Birken, Catherine S.; Keown‐Stoneman, Charles; Laws, Rachel; Wen, Li Ming; Campbell, Karen J.; Keown-Stoneman, Charles
- Abstract
<bold>Objective: </bold>This study examined the relative impact of breastfeeding duration and timing of solids introduction on BMI z score (BMIz) trajectory in early childhood.<bold>Methods: </bold>This study conducted secondary analyses of data from the Melbourne Infant Feeding, Activity and Nutrition Trial (InFANT) Program (N = 542), a prospective cohort study with data collected at birth and 3, 9, 18, 42, and 60 months. Linear spline multilevel models were performed.<bold>Results: </bold>Differential growth rates were observed from birth to 3 months and from 9 to 18 months by breastfeeding duration (≥ 6 vs. < 6 months) and timing of solids introduction (before vs. after 6 months). Children who were breastfed for ≥ 6 versus < 6 months had lower BMIz at all ages from 3 to 60 months. The difference remained after adjusting for child and maternal factors, and the adjusted mean differences in BMIz at 3, 9, 18, 42, and 60 months were -0.34, -0.44, -0.13, -0.19, and -0.23, respectively. Children who received solids before versus after 6 months of age had higher BMIz at 18 and 42 months, but adjustment for child and maternal factors attenuated these differences.<bold>Conclusions: </bold>Longer breastfeeding duration was associated with lower BMIz to 5 years of age, providing further support for infant feeding guidelines to prolong breastfeeding duration for healthy growth.
- Subjects
INFANTS; MULTILEVEL models; ANIMAL feeding; LONGITUDINAL method; COHORT analysis; RESEARCH; TIME; RESEARCH methodology; EVALUATION research; MEDICAL cooperation; COMPARATIVE studies; BREASTFEEDING; RESEARCH funding; BODY mass index
- Publication
Obesity (19307381), 2020, Vol 28, Issue 2, p339
- ISSN
1930-7381
- Publication type
journal article
- DOI
10.1002/oby.22688