Table 2

Demographic and clinical data for arthritic patients and controls. Values are mean ± SD.

CharacteristicControl (n = 25)RA < 65 (n = 25)Sample Type RA > 65 (n = 24)AS (n = 27)PsA (n = 23)OA (n = 17)
Age, yrs51.1 ±6.154.4 ± 6.771.7 ± 5.6*51.4 ± 9.753.5 ± 8.868.7 ± 9.6*
Men/women10/156/196/1812/2011/125/12
Disease duration, yrs13.2 ± 9.316.9 ± 10.98.9 ± 9.19.9 ± 7.2
DAS285.6 ± 1.15.7 ± 1.34.3 ± 1.6
Larsen score2.7 ± 1.03.4 ± 0.8*
BASDAI58.5 ± 21.057.7 ± 25.8
BASFI55.4 ± 25.856.2 ± 25.1
Sacroiliitis2.7 ± 1.12.7 ± 0.5
Lequesne index13.0 ± 2.8
  • RA patients were divided into 2 subgroups by age: < 65 and > 65 yrs.

  • * Statistically significant difference vs other groups for age and vs RA < 65 for Larsen score. RA: rheumatoid arthritis; AS: ankylosing spondylitis; PsA: psoriatic arthritis; OA: osteoarthritis.