Table 1 Characteristics of patients with psoriatic arthritis and psoriasis without arthritis

Median age (min–max)

54 (24–81)

53 (16–80)

Gender, M/F (%)

43.5/56.4

64/36

Age at psoriasis diagnosis, years

35

33

Age at PsA diagnosis, years

46

Enthesitis (%)^a

39.5

Dactylitis (%)

39.2

Axial disease (%)

27.7

Erosive (%)^b

44.9

HLA-B27-positive (%)

32.7

DMARD (%)^c

48.8

TNF-α blockers (%)^d

18.4