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Table 2 Mean ± SD (standard deviation) and 95% CI (confidence intervals) SF-36 scores in patients and the general population*

From: The health-related quality of life in rheumatoid arthritis, ankylosing spondylitis, and psoriatic arthritis: a comparison with a selected sample of healthy people

  Groups
  Rheumatoid arthritis
(n = 469)
Ankylosing spondilitis
(n = 164)
Peripheral PsA
(n = 101)
Axial PsA
(n = 65)
General population
(n = 1579)
  Mean ± SD 95% CI Mean ± SD 95% CI Mean ± SD 95% CI Mean ± SD 95% CI Mean ± SD 95% CI
PF 41.8 ± 20.6 39.9–43.6 52.6 ± 21.2 49.4–55.9 43.5 ± 21.4 39.3–47.7 50.6 ± 18.6 46.0–55.2 82.5 ± 20.0 81.9–83.9
RP 29.8 ± 16.0 28.3–31.2 38.2 ± 29.7 33.6–42.8 34.3 ± 27.3 28.9–39.7 38.4 ± 26.8 31.8–45.1 73.1 ± 36.7 71.3–74.9
BP 30.1 ± 17.0 28.5–31.6 45.0 ± 17.4 42.3–47.7 36.3 ± 17.9 32.7–39.8 45.9 ± 16.9 41.8–50.1 78.5 ± 20.8 77.5–79.6
GH 44.0 ± 19.7 42.3–45.8 47.2 ± 22.6 43.7–50.7 45.1 ± 16.8 41.8–48.5 43.8 ± 16.4 39.8–47.9 60.1 ± 18.1 59.3–61.0
MH 50.3 ± 23.3 48.2–52.4 54.3 ± 20.8 51.1–57.5 44.7 ± 18.0 41.2–48.3 47.6 ± 20.6 42.5–52.7 63.6 ± 16.8 62.9–64.5
RE 38.2 ± 41.4 34.4–41.9 42.0 ± 27.5 37.7–46.2 28.0 ± 29.7 22.1–33.9 37.6 ± 27.4 30.8–44.4 72.1 ± 38.1 70.2–73.9
SF 46.9 ± 21.3 45.0–48.8 54.7 ± 20.9 51.5–58.0 43.1 ± 19.2 39.3–46.9 44.7 ± 11.9 41.7–47.7 71.6 ± 20.1 70.6–72.7
VT 41.9 ± 20.8 40.1–43.8 48.5 ± 18.6 45.6–51.4 45.1 ± 15.8 42.0–48.3 41.8 ± 19.2 37.0–46.5 56.8 ± 15.4 56.2–57.7
SF-36 PCS 32.5 ± 6.0 31.9–33.0 37.1 ± 8.6 35.7–38.4 34.1 ± 6.9 32.8–35.5 37.5 ± 7.0 35.8–39.2 49.6 ± 8.9 49.2–50.2
SF-36 MCS 39.4 ± 11.8 38.3–40.5 40.7 ± 9.5 39.2–42.1 36.9 ± 6.8 35.5–38.3 36.5 ± 8.0 34.5–38.5 45.6 ± 8.4 43.1–46.1
  1. *All differences between patients and the general population were significant at p < 0.0001.
  2. Abbreviations: Physical functioning (PF), Role function – Physical aspect (RP), Bodily Pain (BP), General health perception (GH), Mental Health (MH), Role function – Emotional aspect (RE), Social functioning (SF), Vitality (VT), component summary scores of physical (PCS) and mental functioning (MCS)