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Table 2 Postoperative complications of underweight, normal weight, overweight, and obese patients with stage I NSCLC

From: Effect of body mass index on survival of patients with stage I non-small cell lung cancer

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)