Table 1. Clinicopathological characteristics of patients.
| Characteristics | IBG (N=67) | RG (N=997) | P value |
|---|---|---|---|
| Gender | 0.995 | ||
| Female | 37 (55.22) | 551 (55.27) | |
| Male | 30 (44.78) | 446 (44.73) | |
| Age | 0.126 | ||
| <60 years | 25 (37.31) | 468 (46.94) | |
| ≥60 years | 42 (62.69) | 529 (53.06) | |
| Smoke | 0.428 | ||
| No | 38 (56.72) | 614 (61.58) | |
| Yes | 29 (43.28) | 383 (38.42) | |
| History of chest disease | 0.348 | ||
| No | 60 (89.55) | 924 (92.68) | |
| Yes | 7 (10.45) | 73 (7.32) | |
| History of chest surgery | <0.001* | ||
| No | 60 (89.55) | 974 (97.69) | |
| Yes | 7 (10.45) | 23 (2.31) | |
| Neoadjuvant therapy | 0.366 | ||
| No | 60 (89.55) | 923 (92.58) | |
| Yes | 7 (10.45) | 74 (9.42) | |
| Anticoagulant therapy | 0.109 | ||
| No | 63 (94.03) | 976 (97.89) | |
| Yes | 4 (5.97) | 21 (2.11) | |
| Position of tumor | 0.105 | ||
| Central type | 13 (19.40) | 125 (12.84) | |
| Peripheral type | 54 (80.60) | 872 (87.46) | |
| Location of tumor | 0.094 | ||
| Left | 33 (49.25) | 388 (38.92) | |
| Right | 34 (50.75) | 609 (61.08) | |
| Pleural adhesion | 0.015* | ||
| No | 44 (65.67) | 782 (78.43) | |
| Yes | 23 (34.33) | 215 (21.56) | |
| Pathological type | 0.034* | ||
| Squamous | 16 (23.88) | 143 (14.34) | |
| Non-squamous | 51 (76.12) | 854 (85.66) | |
| T stage | 0.003* | ||
| Tis–T1 | 35 (52.24) | 697 (69.91) | |
| T2-4 | 32 (47.76) | 300 (30.09) | |
| N stage | 0.187 | ||
| N0 | 48 (71.64) | 783 (78.54) | |
| N1–2 | 19 (28.36) | 214 (21.46) | |
Data are expressed as n (%). *, P<0.05. IBG, intraoperative bleeding group; RG, reference group.