| Characteristic | Overall N = 491 |
Dermatomyositis N = 91 |
Juvenile Dermatomyositis N = 01 |
Polymyositis N = 401 |
Inclusion Body Myositis N = 01 |
p-value2 |
|---|---|---|---|---|---|---|
| Age at enrollment (years) | 60 (52, 68) | 55 (52, 66) | NA (NA, NA) | 62 (52, 70) | NA (NA, NA) | 0.6 |
| race.factor | >0.9 | |||||
| American Indian/Alaska Native | 0 (0%) | 0 (0%) | 0 (NA%) | 0 (0%) | 0 (NA%) | |
| Asian | 1 (2.1%) | 0 (0%) | 0 (NA%) | 1 (2.6%) | 0 (NA%) | |
| Native Hawaiian or Other Pacific Islander | 0 (0%) | 0 (0%) | 0 (NA%) | 0 (0%) | 0 (NA%) | |
| Black or African American | 0 (0%) | 0 (0%) | 0 (NA%) | 0 (0%) | 0 (NA%) | |
| White | 47 (98%) | 9 (100%) | 0 (NA%) | 38 (97%) | 0 (NA%) | |
| More Than One Race | 0 (0%) | 0 (0%) | 0 (NA%) | 0 (0%) | 0 (NA%) | |
| Unknown / Not Reported | 0 (0%) | 0 (0%) | 0 (NA%) | 0 (0%) | 0 (NA%) | |
| gender.factor | >0.9 | |||||
| Female | 33 (73%) | 7 (78%) | 0 (NA%) | 26 (72%) | 0 (NA%) | |
| Male | 12 (27%) | 2 (22%) | 0 (NA%) | 10 (28%) | 0 (NA%) | |
| BMI (kg/m2) | 24.5 (22.2, 28.6) | 23.1 (21.8, 29.8) | NA (NA, NA) | 24.5 (22.3, 28.4) | NA (NA, NA) | 0.8 |
| Date of Diagnosis | 0.9 | |||||
| 3 (6.1%) | 0 (0%) | 0 (NA%) | 3 (7.5%) | 0 (NA%) | ||
| 01/01/2005 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/01/2006 | 2 (4.1%) | 1 (11%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/01/2008 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/01/2011 | 2 (4.1%) | 1 (11%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/01/2012 | 1 (2.0%) | 1 (11%) | 0 (NA%) | 0 (0%) | 0 (NA%) | |
| 01/01/2013 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/01/2015 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/01/2019 | 2 (4.1%) | 1 (11%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/01/2022 | 2 (4.1%) | 2 (22%) | 0 (NA%) | 0 (0%) | 0 (NA%) | |
| 01/02/2008 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/02/2012 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/02/2023 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/02/2024 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/03/2010 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/03/2015 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/03/2016 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/03/2020 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/03/2022 | 2 (4.1%) | 1 (11%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/04/2005 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/04/2016 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/05/2011 | 2 (4.1%) | 0 (0%) | 0 (NA%) | 2 (5.0%) | 0 (NA%) | |
| 01/05/2015 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/05/2020 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/06/2011 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/06/2015 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/06/2019 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/09/2015 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/09/2022 | 1 (2.0%) | 1 (11%) | 0 (NA%) | 0 (0%) | 0 (NA%) | |
| 01/10/2010 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/10/2012 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/10/2015 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 01/11/2010 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 03/10/2009 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 06/02/2004 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 08/11/2021 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 09/02/2023 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 11/05/2021 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 20/09/2015 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 30/06/2016 | 1 (2.0%) | 0 (0%) | 0 (NA%) | 1 (2.5%) | 0 (NA%) | |
| 30/08/2023 | 1 (2.0%) | 1 (11%) | 0 (NA%) | 0 (0%) | 0 (NA%) | |
| Age at Diagnosis (years) | 60 (47, 67) | 51 (47, 55) | NA (NA, NA) | 60 (43, 67) | NA (NA, NA) | 0.5 |
| htn.factor | 13 (36%) | 2 (29%) | 0 (NA%) | 11 (38%) | 0 (NA%) | >0.9 |
| hld.factor | 13 (36%) | 3 (43%) | 0 (NA%) | 10 (34%) | 0 (NA%) | 0.7 |
| dm.factor | 4 (11%) | 2 (29%) | 0 (NA%) | 2 (6.9%) | 0 (NA%) | 0.2 |
| smoke.factor | 0.3 | |||||
| Active/Ongoing | 1 (2.8%) | 1 (14%) | 0 (NA%) | 0 (0%) | 0 (NA%) | |
| Prior | 6 (17%) | 1 (14%) | 0 (NA%) | 5 (17%) | 0 (NA%) | |
| Never | 29 (81%) | 5 (71%) | 0 (NA%) | 24 (83%) | 0 (NA%) | |
| cad.factor | 1 (2.8%) | 0 (0%) | 0 (NA%) | 1 (3.4%) | 0 (NA%) | >0.9 |
| mi_base.factor | 1 (100%) | 0 (NA%) | 0 (NA%) | 1 (100%) | 0 (NA%) | >0.9 |
| carotid.factor | 4 (11%) | 1 (14%) | 0 (NA%) | 3 (10%) | 0 (NA%) | >0.9 |
| sva.factor | 4 (11%) | 0 (0%) | 0 (NA%) | 4 (14%) | 0 (NA%) | 0.6 |
| va.factor | 1 (2.8%) | 0 (0%) | 0 (NA%) | 1 (3.4%) | 0 (NA%) | >0.9 |
| sierositis.factor | 4 (11%) | 2 (29%) | 0 (NA%) | 2 (7.1%) | 0 (NA%) | 0.2 |
| crf.factor | 1 (2.8%) | 0 (0%) | 0 (NA%) | 1 (3.4%) | 0 (NA%) | >0.9 |
| thyroid.factor | 6 (17%) | 0 (0%) | 0 (NA%) | 6 (21%) | 0 (NA%) | 0.3 |
| copd.factor | 4 (11%) | 0 (0%) | 0 (NA%) | 4 (14%) | 0 (NA%) | 0.6 |
| 1 Median (Q1, Q3); n (%) | ||||||
| 2 Wilcoxon rank sum test; Fisher’s exact test; Wilcoxon rank sum exact test | ||||||