Table 2.
Comparison of emergent surgical patients with severe (BMI 35–39) and morbid obesity (BMI = 40)
| Characteristic | Group; no (%) or median [IQR] | p value | |
|---|---|---|---|
| Severe, n = 61 | Morbid, n = 50 | ||
| Age, yr | 52 [37–64] | 55 [42–63] | 0.76 |
| Sex, female | 30 (49) | 31 (62) | 0.18 |
| Comorbidities | 2 [1–4] | 3 [1–5] | 0.14 |
| Coronary artery disease | 8 (13) | 9 (18) | 0.48 |
| Congestive heart failure | 6 (9.8) | 2 (4) | 0.29 |
| Diabetes mellitus | 15 (25) | 18 (36) | 0.19 |
| Chronic renal failure | 5 (8.1) | 4 (8) | > 0.99 |
| Stroke | 1 (1.6) | 4 (8) | 0.17 |
| Composite (any) | 20 (33) | 23 (46) | 0.16 |
| Operative factors | |||
| Time in operating theatre, min.* | 85 [54–135] | 104 [57–156] | 0.27 |
| Blood products | 11 of 60 (18) | 11 (22) | 0.63 |
| Intraoperative complications | |||
| None | 52 (85) | 43 (86) | 0.90 |
| Cardiovascular event | 0 | 0 | > 0.99 |
| Bleeding | 1 (16) | 3 (6) | 0.32 |
| Injury to adjacent structure | 5 (8.2) | 3 (6) | 0.72 |
| Conversion to open procedure | 3 (4.9) | 1 (2) | 0.41 |
| Postoperative complications* | 0 [0–1.5] | 0 [0–2.25] | 0.26 |
| Clavien–Dindo Grade 3/4 complications | 12 (20) | 10 (20) | 0.95 |
| Reoperation | 14 (23) | 20 (40) | 0.05 |
| Patient in ICU | |||
| Preoperatively | 11 (18) | 10 (20) | 0.80 |
| Postoperatively | 21 (34) | 23 (46) | 0.22 |
| Lengths of stay | |||
| In intensive care* | 0 [0–3] | 0 [0–9.5] | 0.19 |
| In hospital* | 6 [3–15.5] | 14.5 [6–39] | 0.009 |
| Mortality | |||
| In hospital | 9 (15) | 10 (20) | 0.47 |
| 30 d | 5 (8.2) | 7 (14) | 0.37 |
BMI = body mass index; ICU = intensive care unit; IQR = interquartile range.
*
Continuous variables analyzed using nonparametric (Wilcoxon rank sum) methods.