Table 2.
Postoperative complications of underweight, normal weight, overweight, and obese patients with stage I NSCLC
| Characteristic | Overall (cases) | Underweight [cases (%)] | Normal weight [cases (%)] | Overweight [cases (%)] | Obese [cases (%)] | P value |
|---|---|---|---|---|---|---|
| Total | 624 | 44 | 245 | 306 | 29 | |
| Respiratory failure | 0.014 | |||||
| Absent | 605 (97.0) | 40 (90.9) | 240 (98.0) | 299 (97.7) | 26 (89.7) | |
| Present | 19 (3.0) | 4 (9.1) | 5 (2.0) | 7 (2.3) | 3 (10.3) | |
| Pyrexia | 0.965 | |||||
| Absent | 502 (80.4) | 36 (81.8) | 195 (79.6) | 247 (80.7) | 24 (82.8) | |
| Present | 122 (19.6) | 8 (18.2) | 50 (20.4) | 59 (19.3) | 5 (17.2) | |
| Chylothorax | 0.339 | |||||
| Absent | 616 (98.7) | 43 (97.7) | 241 (98.4) | 304 (99.3) | 28 (96.6) | |
| Present | 8 (1.3) | 1 (2.3) | 4 (1.6) | 2 (0.7) | 1 (3.4) | |
| Hemorrhage | 0.074 | |||||
| Absent | 612 (98.1) | 44 (100.0) | 236 (96.3) | 303 (99.0) | 29 (100.0) | |
| Present | 12 (1.9) | 0 (0.0) | 9 (3.7) | 3 (1.0) | 0 (0.0) | |
| Myocardial infarction | 0.033 | |||||
| Absent | 618 (99.0) | 44 (100.0) | 243 (99.2) | 304 (99.3) | 27 (93.1) | |
| Present | 6 (1.0) | 0 (0.0) | 2 (0.8) | 2 (0.7) | 2 (6.9) | |
| Arrhythmia | 0.484 | |||||
| Absent | 559 (89.6) | 38 (86.4) | 225 (91.8) | 270 (88.2) | 26 (89.7) | |
| Present | 65 (10.4) | 6 (13.6) | 20 (8.2) | 36 (11.8) | 3 (10.3) | |
| Pneumothorax | 0.100 | |||||
| Absent | 473 (75.8) | 29 (65.9) | 179 (73.1) | 240 (78.4) | 25 (86.2) | |
| Present | 151 (24.2) | 15 (34.1) | 66 (26.9) | 66 (21.6) | 4 (13.8) | |
| Atelectasis | 0.818 | |||||
| Absent | 579 (92.8) | 40 (90.9) | 228 (93.1) | 283 (92.5) | 28 (96.6) | |
| Present | 45 (7.2) | 4 (9.1) | 17 (6.9) | 23 (7.5) | 1 (3.4) | |
| Death | 0.016 | |||||
| Absent | 614 (98.4) | 42 (95.5) | 240 (98.0) | 305 (99.7) | 27 (93.1) | |
| Present | 10 (1.6) | 2 (4.5) | 5 (2.0) | 1 (0.3) | 2 (6.9) |