Table 2.

Baseline IWQOL-Lite and SF-36 scores by group adjusted for BMI and gender.

IWQOL-Lite Score	Gastric Bypass Surgery (n = 382–416)	Seeking But Did Not Have Surgery (n = 360–400)	Population-based Obese (n = 286–314)	Significance
Physical Function	26.9 ± 18.5a	31.1 ± 20.8b	48.2 ± 21.2c	F(2, 1124) = 81.07, p < .001
Self-Esteem	22.6 ± 20.8a	24.3 ± 22.0a	45.7 ± 25.9b	F(2, 1125) = 95.20, p < .001
Sexual Life	39.5 ± 30.4a	46.6 ± 32.5b	65.7 ± 29.7c	F(2, 1023) = 46.75, p < .001
Public Distress	36.3 ± 23.2a	39.4 ± 24.9a	62.0 ± 24.8b	F(2, 1124) = 83.33, p < .001
Work	46.2 ± 26.5a	47.5 ± 27.1a	68.0 ± 23.8b	F(2, 1113) = 56.08, p < .001
IWQOL-Lite Total	31.5 ± 16.5a	34.8 ± 18.5a	54.5 ± 19.6c	F(2, 1125) = 127.02, p < .001
SF-36 Score
Physical Functioning	37.1 ± 21.8a	41.8 ± 24.5b	56.6 ± 23.2c	F(2, 1113) = 43.84, p < .001
Role Physical	32.7 ± 35.8a	39.7 ± 39.1b	58.6 ± 38.7c	F(2, 1121) = 32.35, p < .001
Bodily Pain	41.0 ± 21.6a	41.7 ± 21.0a	56.5 ± 22.2b	F(2, 1121) = 41.11, p < .001
General Health	43.3 ± 14.4a	44.5 ± 15.2a	54.9 ± 16.3b	F(2, 1121) = 49.80, p < .001
Vitality	25.9 ± 17.4a	28.1 ± 19.0a	41.6 ± 20.7b	F(2, 1121) = 58.04, p < .001
Social Functioning	48.8 ± 25.6a	51.5 ± 26.9a	72.5 ± 24.5b	F(2, 1121) = 72.47, p < .001
Role Emotional	47.6 ± 43.1a	45.3 ± 42.9a	65.4 ± 40.0b	F(2, 1121) = 20.05, p < .001
Mental Health	59.2 ± 19.2a	57.1 ± 20.9a	70.4 ± 18.9b	F(2, 1121) = 38.31, p < .001
PCS	31.5 ± 8.8a	33.7 ± 9.2b	39.1 ± 9.6c	F(2, 1113) = 42.90, p < .001
MCS	41.4 ± 11.6a	40.4 ± 12.1a	47.8 ± 11.5b	F(2, 1113) = 37.13, p < .001

Cells represent unadjusted means ± SD.

Cells without common superscripts are different, p < .017 based upon covariate adjusted Bonferroni contrasts.