Characteristics of persons with PsA and controls
| Women | Men | Total PsA | Total PsA without RA codes | Controls | |
| N | 7565 | 4419 | 11 984 | 7612 | 119 840 |
| Female (%) | 63 | 59 | 63 | ||
| Age in years, mean (SD) | 61 (13) | 59 (13) | 60 (13) | 59 (13) | 60 (13) |
| 18–30 (%) | 1.9 | 2.3 | 2 | 2.5 | 2 |
| 31–40 (%) | 6 | 8 | 7 | 8 | 7 |
| 41–50 (%) | 11 | 14 | 12 | 13 | 12 |
| 51–60 (%) | 29 | 29 | 29 | 31 | 29 |
| 61–70 (%) | 31 | 28 | 30 | 29 | 30 |
| 71–80 (%) | 16 | 14 | 16 | 14 | 16 |
| >80 years (%) | 5 | 4 | 4.7 | 3.7 | 5 |
| Specialist care in 2021 | |||||
| None (%) | 16 | 16 | 16 | 17 | |
| Dermatology only (%) | 15 | 18 | 16 | 20 | |
| Rheumatology only (%) | 40 | 40 | 40 | 38 | |
| Rheumatology and dermatology (%) | 30 | 26 | 28 | 26 | |
| Comorbidities | |||||
| RDCI, mean (SD), range 0–9 | 1.9 (1.6) | 1.7 (1.6) | 1.9 (1.6) | 1.7 (1.5) | |
| Elixhauser Score, mean (SD), range 0–31 | 3.8 (2.6) | 3.4 (2.7) | 3.6 (2.6) | 3.1 (2.4) | 2.2 (2.2) |
| Hypertension (%) | 56 | 58 | 57 | 53 | 42 |
| Dyslipidaemia (%) | 31 | 36 | 32 | 30 | 27 |
| Obesity (%) | 24 | 19 | 22 | 21 | 11 |
| Diabetes mellitus (%) | 20 | 22 | 21 | 19 | 13 |
| Myocardial infarction (%) | 1.7 | 4.4 | 2.7 | 2.2 | 1.9 |
| Other cardiovascular disease (%) | 12 | 17 | 14 | 12 | 9.7 |
| Stroke (%) | 0.9 | 0.2 | 0.7 | 0.6 | 0.3 |
| Lung disease (%) | 22 | 16 | 20 | 17 | 13 |
| Osteoarthritis (%) | 39 | 28 | 35 | 30 | 15 |
| Depression (%) | 32 | 21 | 28 | 26 | 16 |
| Dementia (%) | 0.9 | 1.1 | 1.0 | 0.8 | 1.3 |
| Hypothyroidism | 26 | 9 | 19 | 18 | 14 |
| Ulcer or stomach problem (%) | 13 | 10 | 12 | 10 | 6.3 |
| Cancer (%) | 9.6 | 10 | 9.8 | 8.6 | 9.1 |
| Renal failure (%) | 8.4 | 9.0 | 8.6 | 7.0 | 4.2 |
| Liver disease (%) | 20 | 26 | 24 | 20 | 10 |
| Gout (%) | 2.7 | 8.3 | 4.7 | 4.3 | 2.1 |
| Osteoporosis (%) | 18 | 7 | 14 | 11 | 4.8 |
| Fracture (%) | 5.5 | 2.1 | 4.2 | 3.2 | 1.5 |
PsA, psoriatic arthritis; RDCI, Rheumatic Disease Comorbiditiy Index.