Demographic characteristics of 302 Danish patients with inflammatory diseases, screened for M. tuberculosis infection prior to tumor necrosis factor-α inhibitor treatment.
| Total, n = 302 (%) | Rheumatoid Arthritis, n = 153 (%) | Spondyloarthropathies, n = 40 (%) | Sarcoidosis, n = 51 (%) | Other*, n = 37 (%) | Unknown**, n = 21 (%) | |
|---|---|---|---|---|---|---|
| Age, median yrs (25%–75% interpercentile range) | 49.8 (36.7–60.2) | 56.9 (45.3–65.4) | 37.2 (29.5–46.8) | 37.8 (31.8–48.7) | 45.8 (31.9–60.2) | 54.4 (38.1–62.9) |
| Sex | ||||||
| Men | 116 (38) | 42 (28) | 26 (65) | 26 (51) | 12 (32) | 10 (48) |
| Women | 186 (62) | 111 (72) | 14 (35) | 25 (49) | 25 (68) | 11 (52) |
| Born in TB-endemic area*** | ||||||
| No | 276 (91) | 143 (93) | 36 (90) | 47 (92) | 31 (84) | 19 (90) |
| Yes | 26 (9) | 10 (7) | 4 (10) | 4 (8) | 6 (16) | 2 (10) |
| BCG vaccination | ||||||
| No | 48 (16) | 19 (13) | 10 (25) | 6 (12) | 9 (24) | 4 (19) |
| Yes | 152 (50) | 89 (58) | 17 (43) | 13 (25) | 20 (54) | 13 (62) |
| Unknown† | 102 (34) | 45 (29) | 13 (32) | 32 (63) | 8 (22) | 4 (19) |
↵* Including psoriatic arthritis, Morbus Still polymyositis, HLA-B27 arthritis, polyarthritis.
↵** Diagnoses were not further specified from the questionnaire.
↵*** TB-endemic areas; defined by WHO as countries with a TB incidence > 25/100,000/year.
↵† Where the questionnaire was incomplete, missing data were categorized as unknown.