Table I.
Demographics and patients’ characteristics.
| Variable | Group A (n = 86) | Group B (n = 172) | p-value |
|---|---|---|---|
| Mean BMI, kg/m2 (SD; range) | 42.33 (2.06; 40.00 to 49.12) | 24.97 (2.29; 20.00 to 29.92) | < 0.001* |
| Sex, M:F; n (%) | 39 (45.3):47 (54.7) | 78 (45.3):94 (54.7) | N/A |
| Mean age, yrs (SD; range) | 64.90 (10.42; 44 to 84) | 64.67 (9.53; 42 to 84) | 0.858* |
| Mean follow-up, yrs (SD) | 5.29 (1.79) | 5.24 (1.77) | 0.843† |
| Hypertension, n (%) | 48 (55.8) | 83 (48.3) | 0.291‡ |
| Atrial fibrillation, n (%) | 11 (12.7) | 7 (4) | 0.017‡ |
| Diabetes mellitus | 27 (31.4) | 14 (8.1) | < 0.001‡ |
| Coronary artery disease, n (%) | 3 (3.5) | 5 (2.9) | 1.000‡ |
| ESRD, n (%) | 2 (2.3) | 0 (0) | 0.110‡ |
| ASA score, n (%) | |||
| 1 | 0 (0) | 48 (27.9) | < 0.001‡ |
| 2 | 0 (0) | 113 (65.7) | < 0.001‡ |
| 3 | 84 (97.6) | 11 (6.3) | < 0.001‡ |
| 4 | 2 (2.3) | 0 (0) | 0.110‡ |
Group A = patients with BMI ≥ 40 kg/m2
Group B = patients with BMI < 30 kg/m2
*
Independent-samples t-test
†
Mann-Whitney U test
‡
Fisher's exact test
ASA, American Society of Anesthesiologists; ESRD, end-stage renal disease; Group A, morbidly obese; Group B, nonobese; N/A, not applicable; SD, standard deviation.