Table 2 Organ involvements of the included sarcoidosis patients according to exposure category
|  | Overall (n = 238) | Exposure | ||||||
|---|---|---|---|---|---|---|---|---|
Reactive chemicals (n = 26) | Inorganic dust (n = 74) | Organic dust (n = 63) | Contact with livestock (n = 15) | Close human contact (n = 31) | Admin work only (n = 42) | Active smoker (n = 43) | ||
Organ involvement | ||||||||
 Pulmonary involvement only | 164 (69%) | 17 (65%) | 58 (78%)* | 47 (75%) | 6 (40%)* | 16 (52%)* | 27 (64%) | 32 (74%) |
 Intrathoracic lymph node | 235 (99%) | 25 (96%) | 73 (99%) | 63 (100%) | 15 (100%) | 31 (100%) | 40 (95%)§ | 43 (100%) |
 Lung | 191 (80%) | 22 (85%) | 59 (80%) | 53 (84%) | 11 (73%) | 24 (77%) | 34 (81%) | 38 (88%) |
 Liver | 23 (9.7%) | 1 (3.8%) | 3 (4.1%)* | 8 (13%) | 4 (27%)* | 8 (26%)* | 4 (9.5%) | 3 (7.0%) |
 Spleen | 37 (16%) | 3 (12%) | 6 (8.1%)* | 7 (11%) | 6 (40%)* | 10 (32%)* | 9 (21%) | 4 (9.3%) |
 Cardiac | 17 (7.1%) | 5 (19%)* | 3 (4.1%) | 2 (3.2%) | 4 (27%)* | 2 (6.5%) | 4 (9.5%) | 3 (7.0%) |
 Eye | 29 (12%) | 2 (7.7%) | 7 (9.5%) | 4 (6.3%)§ | 0 (0%) | 6 (19%) | 5 (12%) | 11 (26%)* |
 Skin (excluding erythema nodosum) | 23 (9.7%) | 2 (7.7%) | 6 (8.1%) | 8 (13%) | 1 (6.7%) | 2 (6.5%) | 3 (7.1%) | 7 (16%) |
 Erythema nodosum | 30 (13%) | 5 (19%) | 11 (15%) | 9 (14%) | 0 (0%) | 3 (9.7%) | 5 (12%) | 4 (9.3%) |
 Neurologic | 9 (3.8%) | 1 (3.8%) | 2 (2.7%) | 1 (1.6%) | 0 (0%) | 2 (6.5%) | 1 (2.4%) | 2 (4.7%) |
 Parotid/salivary gland | 8 (3.4%) | 0 (0%) | 1 (1.4%) | 3 (4.8%) | 2 (13%)§ | 2 (6.5%) | 2 (4.8%) | 0 (0%) |
 Bone marrow | 9 (3.8%) | 0 (0%) | 2 (2.7%) | 3 (4.8%) | 1 (6.7%) | 3 (9.7%)§ | 1 (2.4%) | 3 (7.0%) |
 Löfgren syndrome | 30 (13%) | 3 (12%) | 9 (12%) | 6 (10%) | 1 (7%) | 3 (10%) | 6 (14%) | 3 (7%) |