Table 7.

BMI changes by procedure types

Procedure type	Time	Estimate change in BMIcompared to baseline (95% CI)	p value
Roux-en-Y gastric bypass	30-day	− 3.77 (− 4.06, − 3.48)	< .0001
Duodenal switch	30-day	− 4.88 (− 6.58, − 3.18)	< .0001
Adjustable gastric band	30-day	− 2.86 (− 3.76, − 1.95)	< .0001
Sleeve gastrectomy	30-day	− 3.75 (− 4.55, − 2.95)	< .0001
Roux-en-Y gastric bypass	1-year	− 15.98 (− 16.30,− 15.65)	< .0001
Duodenal switch	1-year	− 19.87 (− 21.93, − 17.81)	< .0001
Adjustable gastric band	1-year	− 5.75 (− 6.72, − 4.78)	< .0001
Sleeve gastrectomy	1-year	− 11.15 (− 12.13, − 10.16)	< .0001
Roux-en-Y gastric bypass	3-year	− 16.31 (− 16.82, − 15.80)	< .0001
Duodenal switch	3-year	− 19.88 (− 22.81, − 16.95)	< .0001
Adjustable gastric band	3-year	− 6.10 (− 7.31, − 4.89)	< .0001
Sleeve gastrectomy	3-year	− 10.96 (− 13.72, − 8.20)	< .0001

There were 751 patients and 3604 observations for a maximum 3-year follow-up. Linear mixed effect model was fit with compound symmetry covariance structure for subject and adjusted for time, procedure types, time x procedure types interaction, age, gender, race, pre-operative diabetes types, pre-operative hypertension medication, and pre-operative GERD medication