Table 1.
Demographic characteristics of elective bariatric surgery patients by smoking status
| Smoking Status | p-value a | ||
|---|---|---|---|
| Current smoker | Non-smoker | ||
| N (%) | |||
| Total | 12,424 (9.3) | 120,993 (90.7) | |
| Age, y, mean (SD) | 24.3 (10.7) | 27.9 (11.9) | <0.001b |
| Sex | |||
| Female | 9,750 (78.5) | 96,441 (79.7) | 0.001 |
| Male | 2,674 (21.5) | 24,552(20.3) | |
| Race | |||
| Non-Hispanic White | 8,175 (65.8) | 75,600 (65.8) | <0.001 |
| Non-Hispanic Black | 1,784 (14.4) | 19,235 (15.9) | |
| Hispanic | 1,316 (10.6) | 13,229 (10.9) | |
| Other/unknown | 1,149 (9.3) | 12,929 (10.7) | |
| BMI, mean (SD) | 46.2 (8.2) | 45.5 (8.0) | <0.001c |
| Comorbidities | |||
| Diabetes | 2,904 (23.4) | 32,785 (27.1) | <0.001 |
| Hypertension | 5,343 (43.0) | 59,402 (49.1) | <0.001 |
| COPD | 480 (3.9) | 1,822 (1.5) | <0.001 |
| Dyspnea (moderate exertion/rest) | 1,946(15.6) | 14,800 (12.2) | <0.001 |
| Steroid use | 199 (1.6) | 2,193 (1.8) | 0.092 |
| Functional status | |||
| Dependent | 83 (0.7) | 881 (0.7) | 0.451 |
| Independent | 12,341 (99.3) | 120,112 (99.3) | |
| ASA** | |||
| I/II | 3,257 (26.2) | 32,194 (26.6) | 0.356 |
| III/IV | 9,153 (73.6) | 88,701 (73.4) | |
| Wound classification | |||
| I/II | 12,326 (99.2) | 120,108 (99.3) | 0.477 |
| III/IV | 98 (0.8) | 885 (0.7) | |
| Operative time, min, mean (SD) | 103 (52.8) | 103 (53.2) | 0.392 b |
| Surgery type | |||
| Laparoscopic Roux-En-Y gastric bypass | 4,770 (38.4) | 47,250 (39.1) | 0.152 |
| Laparoscopic sleeve gastrectomy | 7,654 (61.6) | 73,743 (60.9) | |
a
Chi-squared test
b
Two sided t test
c
Mann-Whitney test