Response to Comment on: Au et al. Body Composition Is Normal in Term Infants Born to Mothers With Well-Controlled Gestational Diabetes Mellitus. Diabetes Care 2013;36:562–564

  1. Heather E. Jeffery, PHD, FRACP1,2,3
  1. 1Sydney Medical School, University of Sydney, Sydney, Australia
  2. 2Sydney School of Public Health, University of Sydney, Sydney, Australia
  3. 3Royal Prince Alfred Hospital (RPA) Newborn Care, Sydney, Australia
  1. Corresponding author: Cheryl P. Au, chau0329{at}uni.sydney.edu.au.

The comment letter by McElduff (1) acknowledges that our study (2) is an excellent example of the research needed to determine optimal glycemic targets for mothers with gestational diabetes mellitus (GDM). The primary objective of our study was to describe the body composition at birth of infants born to mothers with GDM compared with infants born to mothers with normal glucose tolerance using air-displacement plethysomography (2). Body composition at birth, measured accurately by air-displacement plethysomography, is a more sensitive marker of the intrauterine environment than weight alone, and includes estimates of fat mass and fat-free mass.

To our knowledge, this is the first study to show that infant body composition …

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