. Author manuscript; available in PMC: 2021 Feb 1.

Published in final edited form as: Surg Obes Relat Dis. 2019 Dec 10;16(2):340–351. doi: 10.1016/j.soard.2019.11.012

Table 3:

Pooled Percent Total Weight Loss (%TWL) and Percent Excess Weight Loss (%EWL).

Follow up	Outcome	Studies	Total patients	% (95% CI)
6 Months	% TWL	7	1074	14.86 (13.83-15.90)
6 Months	% EWL	6	926	55.75 (50.61-60.89)
12 Months	% TWL	6	673	16.43 (15.23-17.63)
12 Months	% EWL	5	559	61.84 (54.75-68.93)
18 Months	% TWL	2	126	16.81 (13.02-20.59)
18 Months	% EWL	3	134	66.87 (50.14-83.60)
24 Months	% TWL	2	36	20.01 (16.92-23.11)
24 Months	% EWL	1	28	60.40 (48.88-71.92)

Percent Total Weight Loss (%TWL); Percent Excess Weight Loss (%EWL); Confidence Interval (CI)