Table 2: Weight loss comparison between patients with prior substance abuse and those without prior substance abuse in three different bariatric operations.
(a)

LGBSANA

%EWL at 6 months25.4 ± 20.7%26.4 ± 12.5%0.88
%EWL at 12 months33.4 ± 25.2%34.0 ± 27.20.96

(b)

LSGSANA

%EWL at 6 months55.0 ± 25.7%46.7 ± 17.5%0.18
%EWL at 12 months59.6 ± 25.257.3 ± 21.8%0.75

(c)

RYGBSANA

%EWL at 6 months62.5 ± 19.4%60.6 ± 23.6%0.72
%EWL at 12 months75.8 ± 23.5%69.5 ± 19.9%0.15

SA: cohort with prior history of substance abuse.
NA: cohort with no prior history of substance abuse.
LGB: laparoscopic gastric banding.
LSG: laparoscopic sleeve gastrectomy.
RYGB: Roux-en-Y gastric bypass.
%EWL: percent excess weight loss.