Table 3 Mixed design repeated measures analysis of variance (ANOVA) test comparison of average BMI percent change from baseline, average EBMIL%, and average %TWL at different follow-up periods for conversional RYGB after LSG and primary RYGB groups after PSM

% Change BMI from baseline

6 months

1Yr

2Yr

-24.94 ± 11.60

-19.28 ± 15.97

p^a <0.001*

p^b<0.001*

p^c<0.001*

-34.59 ± 11.14

-41.16 ± 13.25

-36.35 ± 9.91

-45.68 ± 9.87

%EBMIL

6 months

1Yr

2Yr

57.12 ± 26.61

40.55 ± 34.51

p^a <0.001*

p^b.001*

p^c<0.001*

78.76 ± 22.43

92.60 ± 28.82

82.19 ± 14.22

102.86 ± 19.30

%TWL

6 months

24.94^a ± 11.60

19.28^a ± 15.97

p^a <0.001*

1Yr

34.59^b ± 11.14

41.16^b ± 13.25

p^b.001*

2Yr

36.35^c ± 9.91

45.68^c ± 9.87

p^c<0.001*