Characteristic | Surgery group N = 612 | Control group N = 593 | P value |
---|---|---|---|
Female n (%) | 503 (82.2) | 468 (78.9) | 0.152 |
Age (year) | 39.2 ± 10.9 | 49.0 ± 13.3 |  < 0.001 |
Weight (kg) | 119.8 ± 20.1 | 96.5 ± 15.5 |  < 0.001 |
BMI (kg/m2) | 45.0 ± 6.0 | 38.5 ± 3.5 |  < 0.001 |
 BMI < 40, n (%) | 106 (17.3) | 434 (73.2) |  < 0.001 |
 BMI 40–50, n (%) | 407 (66.5) | 155 (26.1) | |
 BMI > 50, n (%) | 99 (16.2) | 4 (0.7) | |
Waist circumference (cm) | 123.4 ± 13.9 | 113.4 ± 10.2 |  < 0.001 |
Hip circumference (cm) | 135.8 ± 12.6 | 116.3 ± 8.3 |  < 0.001 |
FPG (mg/dl) | 106.5 ± 32.5 | 101.5 ± 18.3 | 0.001 |
HbA1c % | 5.6 ± 1.0 | NA | NA |
2-hPG (mg/dl) | NA | 123.1 ± 38.5 | NA |
Impaired fasting glucose n (%) | 223 (48.6) | 217 (43.4) | 0.108 |
T2DM n (%) | 123 (21.4) | 84 (14.7) |  < 0.001 |
Systolic BP (mm Hg) | 123.9 ± 13.9 | 125.3 ± 18.3 | 0.123 |
Diastolic BP (mm Hg) | 79.5 ± 8.8 | 82.1 ± 10.6 |  < 0.001 |
HTN, n (%) | 169 (29.1) | 245 (41.5) |  < 0.001 |
Total cholesterol (mg/dl) | 190.1 ± 36.4 | 198.8 ± 38.1 |  < 0.001 |
Triglycerides (mg/dl) | 138.0 (102.0–181.2) | 148.0 (112.0–192.5) | 0.006 |
HDL cholesterol (mg/dl) | 49.4 ± 12.4 | 48.3 ± 11.4 | 0.112 |
LDL cholesterol (mg/dl) | 109.9 ± 32.3 | 118.0 ± 33.1 |  < 0.001 |
Dyslipidemia n (%) | 274 (47.4) | 295 (49.8) | 0.406 |
Never smoking n (%) | 483 (83.7) | 525 (89.3) | 0.003 |
Family history of T2DM n (%) | 218 (47.7) | 69 (11.8) |  < 0.001 |