Length Normalized Indices for Fat Mass and Fat-Free Mass in Preterm and Term Infants during the First Six Months of Life.

ABSTRACT:

Objective

Postnatal tissue accretion in preterm infants differs from those in utero, affecting body composition (BC) and lifelong morbidity. Length normalized BC data allows infants with different body lengths to be compared and followed longitudinally. This study aims to analyze BC of preterm and term infants during the first six months of life.

Methods

The BC data, measured using dual energy X-ray absorptiometry, of 389 preterm and 132 term infants from four longitudinal studies were combined. Fat-mass/length² (FMI) and fat-free mass/length² (FFMI) for postmenstrual age were calculated after reaching full enteral feeding, at term and two further time points up to six months corrected age.

Results

Median FMI (preterm) increased from 0.4 kg/m² at 30 weeks to 2.5, 4.3,

SUBMITTER: Goswami I 

PROVIDER: S-EPMC4963893 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature