Table 1.
Demographic and clinical characteristics at enrollment of patients who were and were not hospitalized during follow-up in the IPF-PRO Registry
| Hospitalized during follow-up (n = 568) | Not hospitalized during follow-up (n = 433) | |||
|---|---|---|---|---|
| Measure | Missing data | Measure | Missing data | |
| Male | 419 (73.8) | 0 | 328 (75.8) | 0 |
| Age, years | 71 (66, 75) | 0 | 70 (66, 76) | 0 |
| White | 528 (93.0) | 13 (2.3) | 400 (92.4) | 10 (2.3) |
| Body mass index, kg/m2 | 29.0 (25.9, 32.6) | 21 (3.7) | 28.8 (26.0, 31.8) | 20 (4.6) |
| Smoking status | 1 (0.2) | 0 | ||
| Current | 10 (1.8) | 8 (1.8) | ||
| Former | 391 (68.8) | 260 (60.0) | ||
| Never | 166 (29.2) | 165 (38.1) | ||
| Private insurance | 336 (59.2) | 25 (4.4) | 268 (61.9) | 9 (2.1) |
| Diagnostic criteria for IPFa | 2 (0.4) | 2 (0.5) | ||
| Definite | 376 (66.2) | 278 (64.2) | ||
| Possible/probable | 190 (33.5) | 153 (35.3) | ||
| FVC % predicted | 69.2 (58.5, 79.3) | 35 (6.2) | 71.4 (60.8, 84.7) | 33 (7.6) |
| DLco % predicted | 40.8 (30.9, 49.8) | 58 (10.2) | 44.5 (35.5, 54.3) | 58 (13.4) |
| Oxygen use at rest | 130 (22.9) | 1 (0.2) | 69 (15.9) | 4 (0.9) |
| Oxygen use with activity | 221 (38.9) | 2 (0.4) | 123 (28.4) | 5 (1.2) |
| History of coronary artery disease or congestive heart failure | 191 (33.6) | 3 (0.5) | 125 (28.9) | 5 (1.2) |
| History of pulmonary hypertension | 42 (7.4) | 3 (0.5) | 29 (6.7) | 4 (0.9) |
| History of emphysema | 72 (12.7) | 5 (0.9) | 54 (12.5) | 4 (0.9) |
| History of sleep apnea | 158 (27.8) | 3 (0.5) | 119 (27.5) | 3 (0.7) |
Data are n (%) or median (Q1, Q3)
aAccording to 2011 ATS/ERS/JRS/ALAT diagnostic guidelines [24]