| Variables | Group I n (%) | Group P n (%) | χ2 | P value |
| Donor characteristics |
|
|
|
|
| Gender |
|
| 1.224 | 0.269 |
| Male | 92 (87.6) | 133 (82.6) |
|
|
| Female | 13 (12.4) | 28 (17.4) |
|
|
| Age (year) |
|
| 0.001 | 0.973 |
| <35 | 56 (53.3) | 85 (53.1) |
|
|
| ≥35 | 49 (46.7) | 75 (46.9) |
|
|
| Oxygenation index |
|
| 1.026 | 0.311 |
| <400 | 33 (31.4) | 60 (37.3) |
|
|
| ≥400 | 72 (68.6) | 101 (62.7) |
|
|
| Mechanical ventilation time (day) |
|
| 14.973 | <0.001 |
| <5 | 79 (75.2) | 83 (51.6) |
|
|
| ≥5 | 26 (24.8) | 78 (48.4) |
|
|
| Graft cold ischemic time (min) |
|
| 4.641 | 0.031 |
| <360 | 26 (24.8) | 23 (14.3) |
|
|
| ≥360 | 79 (75.2) | 138 (85.7) |
|
|
| Recipient characteristics |
|
|
|
|
| Gender |
|
| 1.365 | 0.243 |
| Male | 90 (85.7) | 129 (80.1) |
|
|
| Female | 15 (14.3) | 32 (19.9) |
|
|
| Age (year) |
|
| 0.064 | 0.800 |
| <60 | 59 (56.2) | 93 (57.8) |
|
|
| ≥60 | 46 (43.8) | 68 (42.2) |
|
|
| Primary disease |
|
| 11.604 | 0.035 |
| IPF | 75 (71.4) | 115 (71.4) |
|
|
| COPD | 5 (4.8) | 6 (3.7) |
|
|
| Bronchiectasis | 8 (7.6) | 8 (5.0) |
|
|
| Pneumoconiosis | 15 (14.3) | 13 (8.1) |
|
|
| IPH | 1 (1.0) | 13 (8.1) |
|
|
| Others | 1 (1.0) | 6 (3.7) |
|
|
| LAS |
|
| 2.045 | 0.080 |
| <50 | 77 (73.3) | 119(73.9) |
|
|
| 50 - 60 | 15 (14.3) | 22 (13.7) |
|
|
| ≥60 | 13 (12.4) | 20 (12.4) |
|
|
| PO2 (mmHg) |
|
| 7.869 | 0.020 |
| <60 | 38 (36.2) | 81 (50.3) |
|
|
| 60 - 79 | 41 (39.0) | 59 (36.6) |
|
|
| ≥80 | 26 (24.8) | 21 (13.0) |
|
|
| PCO2 (mmHg) |
|
| 2.278 | 0.320 |
| <35 | 15 (14.3) | 23 (14.3) |
|
|
| 35 - 44 | 43 (41.0) | 80 (49.7) |
|
|
| ≥45 | 47 (44.8) | 58 (36.0) |
|
|