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. 2020 Nov 3;10:18884. doi: 10.1038/s41598-020-75589-2

Table 2.

Evolution of weight loss and postoperative body composition.

Preoperative 6 months 12 months
Weight (kg) 110.02 ± 22.03 72.46 ± 11.26* 69.36 ± 13.60*
BMI (kg/m2) 39.76 ± 6.65 26.50 ± 3.84* 24.52 ± 3.76*
EBMIL (%) – 97.98 ± 29.59 119.96 ± 35.47**
TWL (%) – 36.12 ± 5.20 38.79 ± 7.68**
FFM (kg) 61.12 ± 12.43 52.61 ± 8.69* 53.61 ± 11.61*
FFM (%) 55.19 ± 7.24 73.07 ± 8.90* 77.45 ± 7.97*
FM (kg) 50.44 ± 14.36 19.84 ± 8.42* 15.74 ± 6.74*
FM (%) 44.81 ± 7.24 26.92 ± 8.90* 22.54 ± 7.97*
BM (kg) 3.06 ± 0.57 2.65 ± 0.40* 2.69 ± 0.54*
MM (kg) 58.06 ± 11.85 49.95 ± 8.28* 50.92 ± 11.06*
Water (kg) 45.08 ± 9.99 37.15 ± 6.39* 37.39 ± 9.23*

Data are mean ± SD.

BMI: Body Mass Index; FFM: Fat Free Mass; FM: Fat Mass; BM: Bonne Mass; MM: Muscular Mass.

*Significant difference from preoperative values, P < 0.001.

**Significant difference from 6 months follow-up, P < 0.001.