146 Chapter 7 Table 4. Skinfold thickness measurements to estimate body composition in preterm infants Author, year, country Predictor for body composition Reference method Study setting Subjects N° preterms Time of assessment Koo, 2004, United states of America Tricep, subscapular, suprailiac, and midthigh SFT on the left side DXA (Hologic QDR 1000/W densitometer, pediatric software version 5.64P) 120 preterm and term infants 52 (GA 30 - 36 weeks) 3 (+ 2.8) days postnatal age Schmelzle, 2002, Germany Triceps, biceps, suprailiac, and subscapular SFTs DXA (Hologic QDR 1500, infant wholebody software version 5.67) 104 preterm and term infants 10 (GA 34 – 36 weeks) 1 – 10 days postnatal age, and at 2 and 4 months of age Daly-Wolfe, 2015, United States of America Triceps, biceps, suprailiac, and subscapular SFTs ADP 56 preterm and term infants 28 (GA 33.3 + 0.9 weeks) Discharge home ADP: air displacement plethysmography; DXA: dual energy x-ray absorptiometry; GA: gestational age; SFT: skinfold thickness Large study population > 100 participants Levels of evidence based on the Oxford Centre for Evidence-based Medicine’s Levels of Evidence (15) Level 1: Validating cohort study with good reference standards*; or clinical decision rule tested within one clinical center. Level 2: Exploratory cohort study with good reference standards; clinical decision rule after derivation, or validated only on split-sample or databases Level 3: Non-consecutive study; or without consistently applied reference standards
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