Table 1.
Baseline Characteristics after matching
| Characteristic | Mechanical ventilation support |
No mechanical ventilation support |
|
|---|---|---|---|
| Data presented as n (%), mean ± SD, or median (25%, 75%) | |||
| N | 419 | 419 | |
| Age Category | |||
| 18-49 | 164 (39.1) | 152 (36.2) | |
| 50-60 | 114 (27.2) | 129 (30.8) | |
| 60-65 | 81 (19.3) | 89 (21.2) | |
| >65 | 60 (14.3) | 49 (11.7) | |
| Sex (female) | 175 (41.8) | 189 (45.1) | |
| Indication for Transplant by Diagnostic Category* | |||
| Group A | 100 (23.9) | 123 (29.4) | |
| Group B | 14 (3.3) | 6 (1.4) | |
| Group C | 72 (17.2) | 61 (14.6) | |
| Group D | 233 (55.6) | 229 (54.7) | |
| Ethnicity | |||
| White, non- Hispanic | 359 (85.9) | 327 (78.0) | |
| Black | 30 (7.2 | 49 (11.7) | |
| Hispanic | 22 (5.3) | 31 (7.4) | |
| Asian | 8 (1.9 | 12 (2.9) | |
| Prior cigarette use | 224 (54.9) | 241 (59.1) | |
| Body Mass Index | 25.3 ± 5.5 | 25.1 ± 5.1 | |
| Creatinine (mg/dl) | 0.80 (0.6, 1.0) | 0.80 (0.6, 1.0) | |
| pCO2 (mm Hg) | 53.7 ± 18.4 | 52.7 ± 16.8 | |
| FEV1 (% of predicted) | 32 (20, 50) | 37 (21, 51) | |
| FVC (% of predicted) | 43 (33, 55) | 43 (33, 56) | |
| Lung Allocation Score | 65.9 (40.5, 88.3) | 66.3 (41.2, 88.4) | |
| Wait-time while listed (days) | 27 (8, 111) | 48 (13, 159) | |
pCO2 = arterial partial pressure of carbon dioxide; FEV1 = Forced expiratory volume in 1 second; FVC = Forced vital capacity
*
Diagnostic categories used for calculation of the Lung Allocation Score