Table 1

Baseline characteristics and demographics of incident psoriatic arthritis (PsA) patients and a matched general population cohort (GPC) according to calendar period of diagnosis

1996–20002001–20042005–20082009–20122013–2017*
PsAGPCPsAGPCPsAGPCPsAGPCPsAGPC
Individuals (n)163516 020154815 180246624 298304129 939327023 859
Age in years, median
(IQR)
48.6
(38.9, 56.3)
48.3
(38.7, 55.8)
49.8
(38.8, 58.1)
49.4
(38.6, 57.8)
49.5
(39.7, 58.4)
49.4
(39.7, 58.4)
50.0
(39.8, 59.6)
49.8
(39.7, 59.3)
52.1
(41.4, 62.1)
51.6
(41.2, 61.4)
Female sex, n (%)918 (56.1)8967 (56.0)843 (54.5)8299 (54.7)1381 (56.0)13 623 (56.1)1796 (59.1)17 720 (59.2)1862 (56.9)13 598 (57.0)
CVD, n (%)64 (3.9)608 (3.8)100 (6.5)673 (4.4)147 (6.0)1126 (4.6)205 (6.7)1357 (4.5)202 (6.2)1108 (4.6)
COPD, n (%)21 (1.3)237 (1.5)28 (1.8)295 (1.9)56 (2.3)392 (1.6)74 (2.4)454 (1.5)93 (2.8)382 (1.6)
Depression, n (%)12 (0.7)51 (0.3)22 (1.4)127 (0.8)39 (1.6)246 (1.0)50 (1.6)394 (1.3)78 (2.4)385 (1.6)
IBD, n (%)14 (0.9)52 (0.3)15 (1.0)85 (0.6)20 (0.8)142 (0.6)28 (0.9)177 (0.6)41 (1.3)138 (0.6)
Diabetes, n (%)33 (2.0)213 (1.3)59 (3.8)278 (1.8)82 (3.3)509 (2.1)105 (3.5)665 (2.2)157 (4.8)546 (2.3)
Uveitis, n (%)8 (0.5)15 (0.1)15 (1.0)40 (0.3)11 (0.4)45 (0.2)24 (0.8)49 (0.2)39 (0.2)33 (1.0)
  • *Only included in the analysis of the cumulative incidence of surgery as patients diagnosed in this period did not have a full 5 years of follow-up.

  • COPD, chronic obstructive pulmonary disease; CVD, cardiovascular disease; IBD, inflammatory bowel disease.