Table 1.
Baseline Characteristics of Sample (n = 210) and Degree of Missingnessa
| Demographic characteristics | Missing (%) | |
|---|---|---|
| Median age (years) at time of survey (IQR) | 58.7 (48.5–63.6) years | 0 |
| Female (n) | 50.5% (106) | 0 |
| Caucasian race (n) | 89.1% (187) | 0 |
| Private/commercial (primary insurance) (n) | 49.5% (104) | 0 |
| Income (n) | 7.1 | |
| Less than $10,000 | 13.3% (26) | |
| $10–24,999 | 16.9% (33) | |
| $25–49,999 | 25.1% (49) | |
| $50–74,999 | 17.4% (34) | |
| $75–99,999 | 14.4% (28) | |
| $100–149,999 | 8.2% (16) | |
| More than $150,000 | 4.6% (9) | |
| Education (n) | 1.4 | |
| Some high school or less | 8.7% (18) | |
| High school diploma or college/graduate degree | 66.2% (137) | |
| 4-year college or graduate degree | 25.1% (52) | |
| Married or engaged (n) | 63.8% (132) | 1.4 |
| History of traumatic event ever in life (n) | 70.0% (140) | 4.8 |
| Pre-transplant characteristics | ||
| Underlying disease (n) | 0 | |
| COPD/α1-anti-trypsin deficiency | 37.1% (78) | |
| Idiopathic pulmonary fibrosis | 28.6% (60) | |
| Cystic fibrosis | 15.2% (32) | |
| PAH | 5.2% (11) | |
| Other | 13.8% (29) | |
| Median time on waiting list (IQR) | 88.5% (33–188) days | 3.8 |
| Most recent PFTs prior to transplant | ||
| Median FVC, % predicted (IQR) | 48.5% (39–57.5%) | 8.6 |
| Median FEV1, % predicted (IQR) | 27% (18.5–44%) | 6.7 |
| Most recent oxygen requirement prior to transplant (IQR) | 3 (2–4) liters/ 10.9 min | |
| Post-transplant characteristics | ||
| Bilateral lung transplant (n) | 76.2% (160) | 0 |
| Most recent PFTs prior to survey date | ||
| Median FVC, % predicted (IQR) | 73 (59–88) | 1.4 |
| Median FEV1, % predicted (IQR) | 69 (52–87) | 0.1 |
| Median time since transplant (IQR) | 2.4 (0.7–5.3) years | |
| Current supplemental oxygen use (n) | 7.4% (15) | 3.3 |
| Episode of acute rejection (n) | 25.2% (52) | 1.9 |
| Bronchiolitis obliterans syndrome (n) | 18.0% (36) | 4.8 |
FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity IQR, interquartile range; PAH, pulmonary arterial hypertension; PFTs, pulmonary function tests.
a
Percent of cases missing data on each variable.