Table 1 Demographic characteristics of the cohort (n = 187)
Characteristics | mean ± SD or n (%) |
|---|---|
Age at enrollment (years) | 53.0 ± 12.6 |
Age at diagnosis (years) | 45.8 ± 12.4 |
Sex | |
 Male | 103 (55.1%) |
 Female | 84 (44.9%) |
Race | |
 White | 132 (70.6) |
 African American | 32 (17.1) |
 Asian | 3 (1.6) |
 American Indian or Alaska Native | 1 (0.5) |
 Choose not to answer | 19 (10.2) |
Body mass index (kg/m2) | 31.2 ± 7.1 |
Smoking status | |
 Never | 101 (54.0) |
 Former | 71 (38.0) |
 Current | 15 (8.0) |
Family history of sarcoidosis | 16 (9.0) |
Use of anti-inflammatory agents | |
 Treated ≥1 month | 133 (71.1) |
 Treated < 1 month or never | 54 (28.9) |
Pulmonary function tests | |
 FEV1 (% predicted) | 80.0 ± 23.5 |
 FVC (% predicted) | 85.2 ± 21.2 |
 FEV1:FVC ratio | 74.4 ± 11.5 |
 TLC (% predicted) | 92.7 ± 17.3 |
 DLCO (% predicted) | 89.5 ± 26.0 |