Table 2.
Characteristics of Matched Single and Multiple Listed Lung Transplant Candidates
| Single Listed n = 2,064 |
Multiple Listed n = 516 |
Standardized Mean Difference |
|
|---|---|---|---|
| Age, median (IQR), years | 53 (40.0, 60.0) | 54 (40.8, 61.0) | 0.082 |
| Female, No (%) | 1234 (59.8) | 315 (61.0) | 0.026 |
| Race, No (%) | 0.114 | ||
| White | 1836 (89.0) | 470 (91.1) | |
| Black | 189 (9.2) | 35 (6.8) | |
| Asian | 29 (1.4) | 7 (1.4) | |
| Other | 9 (0.4) | 4 (0.8) | |
| Missing | 1 (0.0) | 0 (0.0) | |
| Height, median (IQR), cm | 165.1 (158.8, 172.7) | 165.1 (158.6, 172.7) | 0.002 |
| Lung Diagnosis, No (%) | <0.001 | ||
| Group A - Obstructive Lung Disease | 728 (35.3) | 182 (35.3) | |
| Group B - Pulmonary Vascular Disease | 104 (5.0) | 26 (5.0) | |
| Group C - Cystic Fibrosis | 416 (20.2) | 104 (20.2) | |
| Group D - Pulmonary Fibrosis | 816 (39.5) | 204 (39.5) | |
| Restricted Bilateral Lung Preference, No (%) | 1749 (84.7) | 425 (82.4) | 0.064 |
| Antibody Crossmatch Required, No (%) | 177 (8.6) | 48 (9.3) | 0.025 |
| ABO Blood Type, No (%) | 0.077 | ||
| A | 806 (39.1) | 215 (41.7) | |
| AB | 60 (2.9) | 19 (3.7) | |
| B | 191 (9.3) | 47 (9.1) | |
| O | 1007 (48.8) | 235 (45.5) | |
| Functional Status, No (%) | 0.171 | ||
| Needs No Assistance | 529 (52.6) | 96 (18.6) | |
| Needs Some Assistance | 1322 (64.1) | 364 (70.5) | |
| Needs Full Assistance | 172 (8.3) | 46 (8.9) | |
| Missing | 41 (2.0) | 10 (1.9) | |
| Lung Allocation Score at Initial Listing, median (IQR) | 34.1 (32.3, 37.2) | 34.2 (32.3, 37.4) | 0.024 |
| Year of Initial Listing, No (%) | <0.001 | ||
| Pre-2005 | 372 (18.0) | 93 (18.0) | |
| 2005 – 2008 | 544 (26.4) | 136 (26.4) | |
| 2009 – 2011 | 668 (32.4) | 167 (32.4) | |
| 2012 – 2015 | 480 (23.3) | 120 (23.3) | |
| Highest Level of Education, No (%) | 0.262 | ||
| High School or below | 847 (41.0) | 170 (32.9) | |
| College | 845 (40.9) | 224 (43.4) | |
| Post College Graduate Degree | 135 (6.5) | 69 (13.4) | |
| Missing | 237 (11.5) | 53 (10.3) | |
| Insurance Type, No (%) | 0.168 | ||
| Private | 1305 (63.2) | 330 (64.0) | |
| Medicare | 486 (23.5) | 133 (25.8) | |
| Medicaid | 199 (9.6) | 31 (6.0) | |
| Other | 73 (3.5) | 19 (3.7) | |
| Missing | 1 (0.0) | 3 (0.6) | |
| Organ Procurement Transplant Network Region, No (%) | 0.15 | ||
| Region 1 | 119 (5.8) | 34 (6.6) | |
| Region 2 | 246 (11.9) | 66 (12.8) | |
| Region 3 | 270 (13.1) | 64 (12.4) | |
| Region 4 | 178 (8.6) | 46 (8.9) | |
| Region 5 | 261 (12.6) | 83 (16.1) | |
| Region 6 | 21 (1.0) | 5 (1.0) | |
| Region 7 | 223 (10.8) | 43 (8.3) | |
| Region 8 | 168 (8.1) | 33 (6.4) | |
| Region 9 | 122 (5.9) | 32 (6.2) | |
| Region 10 | 318 (15.4) | 73 (14.1) | |
| Region 11 | 138 (6.7) | 37 (7.2) | |
| Household Income, median (IQR), US Dollars | 51940 (44980, 60240) | 52110 (45750, 61800) | 0.068 |
| Waitlist Time, median (IQR) | 567.5 (244, 1154) | 249.5 (71.8, 546.8) | 0.697 |