Health status after a median of 14.9 years and 22.8 years of disease duration in patients with juvenile PsA, patients with other JIA subtypes, and controls. Values are mean (95% confidence interval).
| PsA | Oligo-or Polyarthritis | p vs PsA | ERA | p vs PsA | Controls | p vs PsA | |
|---|---|---|---|---|---|---|---|
| Disability (HAQ) | |||||||
| 15 yrs after onset | 0.21 (0.06–0.36) | 0.27 (0.20–0.34) | NS | 0.38 (0.23–0.53) | NS | ||
| 23 yrs after onset | 0.37 (0.18–0.56) | 0.27 (0.20–0.34) | NS | 0.31 (0.14–0.47) | NS | ||
| p for change over time | 0.033 | NS | NS | ||||
| Health status (SF-36) | |||||||
| Physical summary score | |||||||
| 15 yrs after onset | 49.9 (46.1–53.7) | 50.4 (49.1–51.8) | NS | 46.4 (42.5–50.3) | NS | 54.5 (53.7–55.4) | 0.001 |
| 23 yrs after onset | 46.3 (41.7–50.8) | 50.6 (49.0–52.2) | 0.045 | 48.6 (44.6–52.6) | NS | ||
| p for change over time | 0.039 | NS | NS | ||||
| Mental summary score | |||||||
| 15 yrs after onset | 52.6 (49.8–55.4) | 52.7 (51.4–54.0) | NS | 51.2 (48.1–54.4) | NS | 49.9 (48.7–51.0) | NS |
| 23 yrs after onset | 51.6 (47.0–56.2) | 51.2 (49.5–52.8) | NS | 47.3 (43.9–50.7) | NS | ||
| Pain* | |||||||
| 15 yrs after onset | 2.40 (1.91–2.90) | 2.26 (2.08–2.44) | NS | 2.88 (2.47–3.30) | NS | 2.04 (1.90–2.18) | NS |
| 23 yrs after onset | 2.79 (2.26–3.31) | 2.27 (2.07–2.48) | 0.050 | 2.85 (2.40–3.30) | NS | ||
N = 31 for PsA, n = 205 for oligo- or polyarthritis, and n = 55 for ERA at 15 years and n = 28 for PsA, n = 155 for JIA and n = 40 for ERA at 23 years followup. Controls were selected from the general population, matched for sex age and region for the total cohort of JIA patients.
↵* Likert scale, range 1 (no bodily pain) to 6 (very strong bodily pain). PsA: psoriatic arthritis, ERA: enthesitis-related arthritis, HAQ: Health Assessment Questionnaire, range 0 (no disability) to 3 (very severe disability); SF-36: Short Form-36 Health Survey; values < 50 indicate physical or mental health poorer than average. NS: not statistically significant.