What is the relationship between the birth of a sibling and body mass index (BMI) in young children?

Updated: Dec 01, 2020
  • Author: Steven M Schwarz, MD, FAAP, FACN, AGAF; Chief Editor: Jatinder Bhatia, MBBS, FAAP  more...
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A study by Mosli et al found that a birth of a sibling when the child is 24 to 54 months old is associated with a healthier body mass index z-score trajectory. [8, 9]

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