Table 1 Clinical characteristic of 227 patients at the diagnosis
Characteristics | Chinese (n = 140) | American (n = 87) |
|---|---|---|
Mean age ± SD (years) | 48.8 ± 8.1 | 43.6 + 11.7 |
Men/women | 43/97 (0.44:1) | 31/56 (0.55:1) |
Race | Han (140) | Black/White (56/31) |
Sarcoidosis stage according to chest X-ray presentations$, n (%) | ||
0 | 9 (6.4) | 7 (8) |
I | 54 (38.6) | 16 (18.4) |
II | 56 (40) | 11 (12.6) |
III | 19 (13.6) | 17 (19.5) |
IV | 2 (1.4) | 36 (41.4) |
Sarcoidosis diagnosis by different approach (n) | ||
EOB | 48 | 41 |
Surgery | 83 | 18 |
Extra lung biopsy | 9 | 28 |
Pulmonary function tests | ||
FVC$, mean ± SD (L) | 3.0 ± 0.7 | 2.6 ± 0.6 |
FVC$, predicted, mean ± SD (%) | 84.7 ± 10.3 | 76.0 ± 16.4 |
FEV1$, mean ± SD (L) | 2.4 ± 0.6 | 2.0 ± 0.6 |
FEV1/FVC$, mean ± SD | 79.9 ± 5.9 | 71.8 ± 12.7 |
DLCO$, mean ± SD (L) | 20.3 ± 4.6 | 15.2 ± 3.8 |
DLCO$, mean ± SD (%) | 92.4 ± 12.2 | 63.9 ± 19.1 |