TABLE 3.
Fat mass estimate by method for all subjects with complete data (n = 33)1
| Model | 37 wk of gestation fat mass, kg | 2 wk postpartum fat mass, kg | Change in fat mass, kg |
| SFT2 | 39.1 ± 11.7 | 35.4 ± 11.7 | −3.7 ± 16.6 |
| BIA2 | 36.2 ± 14.5 | 32.8 ± 14.4 | −3.4 ± 20.4 |
| Postpartum DXA3,5 | — | 33.6 ± 13.1 | — |
| Db(BodPod)2 | 37.9 ± 13.2 | 35.0 ± 14.0 | −2.9 ± 19.2 |
| Db(VRJ)3,4 | 35.9 ± 13.0 | — | — |
| TBW(VRJ)3,4 | 34.9 ± 13.5 | — | — |
| 3-C2 | 35.5 ± 13.3 | 34.7 ± 13.3 | −0.8 ± 18.8 |
| 4-C2,5 | 29.5 ± 13.2 | 28.9 ± 13.6 | −0.6 ± 19.1 |
1
All values are means ± SDs. BIA, bioelectrical impedance analysis; Db(BodPod), air displacement plethysmography body density; Db(VRJ), van Raaij body density; DXA, dual-energy X-ray absorptiometry; SFT, skinfold thickness; TBW(VRJ), van Raaij total body water; 3-C, 3-compartment; 4-C, 4-compartment.
2
Maternal-fetal fat mass.
3
Maternal fat mass.
4
Calculated during pregnancy only.
5
DXA performed postpartum.