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Table 3 Cox proportional hazard model for patient survival after lung transplantation

From: Adult lung transplantation case-volume and in-hospital and long-term mortality in Korea

  Mortality, n (%) Unadjusted Adjusted
HR (95% CI) P value HR (95% CI) P value
Case-volume
 Low (< 5 LTs/year) 39 (54.9) 1.435 (0.994, 2.072) 0.054 1.373 (0.943, 1.999) 0.098
 High (≥ 5 LTs/year) 106 (43.4)     Reference  
Age
 19 ≤ age < 50 41 (34.7)     Reference  
 50 ≤ age < 60 43 (44.8) 1.546 (1.003, 2.376) 0.046 1.756 (1.12, 2.755) 0.014
 60 ≤ age 61 (60.4) 2.398 (1.606, 3.580) < 0.001 2.873 (1.82, 4.536) < 0.001
Sex
 Male 89 (48.4)     Reference  
 Female 56 (42.7) 0.768 (0.549, 1.074) 0.12 0.864 (0.604, 1.237) 0.426
Diagnosis
 ILD 47 (38.8)     Reference  
 IPF 44 (46.3) 1.312 (0.869, 1.981) 0.19 1.11 (0.73, 1.686) 0.626
 COPD 33 (49.3) 1.264 (0.809, 1.974) 0.30 1.709 (1.069, 2.733) 0.025
 ARDS 4 (50.0) 0.488 (0.536, 4.132) 0.44 1.329 (0.475, 3.72) 0.588
 Others 17 (70.8) 1.963 (1.125, 3.426) 0.017 2.76 (1.542, 4.941) < 0.001
Elixhauser comorbidity index   1.004 (0.987, 1.020) 0.65 1 (0.983, 1.017) 0.991
  1. HR hazard ratio, IPF idiopathic pulmonary fibrosis, ILD interstitial lung disease, COPD chronic obstructive pulmonary disease, ARDS acute respiratory distress syndrome