Table 2 Body composition of the infant by isotope dilution technique
Index | Girls (n = 13) | Boys (n = 11) | All infants (n = 24) |
|---|---|---|---|
Total body water (%) | 56.7 (2.9) | 61.3* (5.9) | 58.8 (5.0) |
18O content (ppm) | |||
Baseline samples | 1998.3 (0.7) | 1998.3 (1.0) | 1998.3 (0.8) |
5-h samples | 2190.1 (27.2) | 2145.8 (17.0) | 2168.8 (31.8) |
3-d samples | 2095.6 (15.8) | 2080.5 (16.6) | 2088.4 (17.6) |
Fat free mass (kg) | 4.3 (0.6) | 5.0** (0.8) | 4.6 (0.8) |
Fat mass (kg) | 2.0 (0.5) | 1.9 (0.6) | 1.9 (0.5) |
% Fat mass | 31.3 (5.3) | 27.3 (6.5) | 29.5 (6.1) |