Table 1

Sample characteristics by country

GenderAgeDisease durationEducational backgroundDiagnostic groups
CountryFemale (%)Mean (SD)Mean (SD)Only basic education (%)ASPsASScSLEOAFMSSample size (N)
Austria96 (55.8)55.3 (11.1)12.5 (10.6)86 (51.5)12547172
Finland368 (82.1)53.2 (12.1)12.2 (10.3)115 (24.6)8486171108449
The Netherlands368 (69.0)53.3 (15.1)13.8 (11.9)37 (6.7)85112103126126552
Norway398 (68.9)51.9 (12.0)10.6 (9.9)143 (24.4)146147149144586
Portugal362 (64.0)50.8 (15.3)13.0 (10.1)228 (42.1)121132281468853568
Spain321 (63.8)48.2 (13.8)12.6 (9.8)180 (37.0)14112459992357503
Sweden83 (44.9)55.8 (12.5)21.0 (12.1)55 (29.7)10283185
Pooled1996 (66.2)52.6 (13.1)13.7 (10.7)844.0 (28.0%)6798093613714333623015
  • AS, ankylosing spondylitis; FMS, fibromyalgia syndrome; OA, osteoarthritis; PsA, psoriatic arthritis; SLE, systemic lupus erythematosus; SSc, systemic sclerosis.