Research Article
Clinical Features of Dermatomyositis/Polymyositis with Anti-MDA5 Antibody Positivity
Table 1
Comparison of each clinical information between positive and negative groupsn (%), x ± s.
| | | Positive group (n = 18) | Negative group (n = 46) | χ 2/t/Z | P |
| | Sex | | | 3.677 | 0.055 | | Men | 11 (61.1) | 16 (34.8) | | Women | 7 (38.9) | 30 (65.2) | | Age (years) | 52 | 51 | 0.398# | 0.692 | | Diagnosis | | | | | | DM + CADM | 17 (94.4) | 27 (58.7) | 7.696 | 0.006 | | PM | 1 (5.6) | 19 (41.3) | | Cough | 9 (50.0) | 20 (43.5) | 0.222 | 0.637 | | Chest tightness and shortness of breath | 11 (61.1) | 21 (45.7) | 1.237 | 0.266 | | Joint pain | 12 (66.7) | 16 (34.8) | 5.344 | 0.021 | | Gottron sign | 10 (55.6) | 9 (19.6) | 8.028 | 0.005 | | Sunburn rash | 6 (33.3) | 8 (17.4) | 1.104 | 0.293 | | Rash | | | | | | Others | 1 (5.6) | 10 (21.7) | 1.379 | 0.240 | | None | 1 (5.6) | 19 (41.3) | 7696 | 0.006 | | Death | 3 (16.7) | 1 (2.2) | 2.494 | 0.114 |
|
|
Note. Chi-square test; #t-test. |
