Table 1 Characteristics of the study population. For patients with psoriatic arthritis (PsA) and rheumatoid arthritis (RA), as well as healthy controls the population size, the mean age in years ± standard deviation and range, the mean disease duration (except HC) in years (PsA) and weeks (RA) ± standard deviation and range and the sex are presented
PsA patients | RA patients | HC | |
|---|---|---|---|
Population size | 17 | 20 | 16 |
Age [years] | 53.7 ± 11.6 (26–72) | 46 ± 15.7 (19–67) | 39 ± 16.1 (range 17–78) |
Disease duration | 2.6 ± 3.3 (1–8 years) | 11 ± 7 (2–24 weeks) | – |
Sex [male/female] | 9 males/8 females | 11 males/9 females | 9 males/7 females |