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. 2018 Nov 20;144(3):641–650. doi: 10.1002/ijc.31913

Table 2.

Weight change after bariatric surgery

Baseline (T0) 2 months (T1) 12 months (T2) Mean difference (95% CI)
T1 vs. T0 T2 vs. T0
n 72 41 28
Mean weight (SD), kg 144.4 (24.4) 122.8 (23.3) 97.7 (22.6) −21.8 (−24.8 to −18.7) p < 0.0001 −47.2 (−53.3 to −41.1) p < 0.0001
Mean BMI (SD), kg/m2 53.6 (7.7) 45.6 (7.3) 36.1 (7.2) −8.21 (−9.3 to −7.1) p < 0.0001 −18.76 (−20.8 to −16.7) p < 0.0001
Mean change in total body weight (SD), % −15.2 (5.9) −32.7 (9.9)
Mean change in excess body weight (SD), % −20.6 (37.4) −62.8 (20.3)
Mean change in BMI (SD), kg/m2 −8.1 (3.4) −18.8 (4.6)

SD: standard deviation. CI: confidence interval.