138 Chapter 7 Figure 1. PRISMA flow diagram of included studies Daly-Wolfe and colleagues reported that mid-arm circumference had a moderate predictive value for fat mass percentage measured by ADP.24(see table 3) On the other hand, Koo et al. measured chest, abdomen, midthigh and midarm circumference. After including sex, race, gestation, weight and length in a predictive equation for fat mass (g) and fat free mass (g), these body and limb circumferences did not explain any additional part of the variance in fat (free) mass (g).17 Of note, these findings were based on the entire study population which included both term and preterm infants (respectively n = 68 and n = 52) who were large, appropriate as well as small for gestational age. Nevertheless, Pereira da Silva and colleagues investigated a group of exclusively preterm infants and reported midarm circumference to have a poor predictive value arm fat area (mm2) measured by MRI.25 (see table 3)
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