Table 3.
Multivariable Analysis of Outcomes Stratified by BMI
| Outcome | Underweight (<18.5 kg/m2) | Overweight (25–29.9 kg/m2) | Obese I (30–34.9 kg/m2) | Obese II (35–39.9 kg/m2) | Obese III (≥40 kg/m2) | Overall P value |
|---|---|---|---|---|---|---|
| Operative mortality | 1.12 (0.72–1.76) 0.6100 |
0.77 (0.64–0.93) 0.0065 |
0.85 (0.67–1.07) 0.1603 |
0.91 (0.64–1.29) 0.5984 |
1.35 (0.83–2.19) 0.2333 |
0.0581 |
| Any pulmonary complication |
1.41 (1.16–1.70) 0.0005 |
0.81 (0.74–0.88) <0.0001 |
0.87 (0.78–0.96) 0.0042 |
0.80 (0.68–0.93) 0.0038 |
1.12 (0.95–1.34) 0.1862 |
<0.0001 |
| Any major complication | 1.10 (0.94–1.28) 0.2539 |
0.90 (0.85–0.97) 0.0027 |
0.94 (0.87–1.01) 0.1110 |
0.96 (0.85–1.09) 0.5623 |
1.18 (1.02–1.36) 0.0283 |
0.0030 |
| Any postoperative event |
1.44 (1.26–1.64) <0.0001 |
0.79 (0.74–0.83) <0.0001 |
0.77 (0.72–0.82) <0.0001 |
0.70 (0.63–0.78) <0.0001 |
0.89 (0.79–1.01) 0.0716 |
<0.0001 |
Values are adjusted odds ratio (95% confidence interval) and P value. Outcomes that are statistically significant are in bold font.
BMI = body mass index.