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Table 1 Demographic and clinical characteristics of patients

From: Psychometric validation of the EuroQoL 5-dimension (EQ-5D) questionnaire in patients with spondyloarthritis

  Total (N = 220)
Demographic, % (n)
 Age, mean ± SD 47.2 ± 14.1
 Gender
  Female 32.7% (72)
  Male 67.3% (148)
 Smoking
  Non-smoker 79.0% (173)
  Smoker 9.6% (21)
  Ex-smoker 11.4% (25)
 Drinking
  Non-drinker 31.5% (69)
  Ex-drinker 10.5% (23)
  Social drinker 53.0% (116)
  Current drinker 4.6% (10)
 Education level
  Nil 0.5% (1)
  Primary 10.5% (23)
  Secondary 47.5% (104)
  Tertiary or above 41.6% (91)
 Family income level
  < US$1282 18.9% (41)
  US$1282–3846 42.9% (93)
  US$3846–7692 20.7% (45)
  > US$7692 17.5% (38)
 Occupation
  Student 5.5% (12)
  Housewife 7.3% (16)
  Work 70.0% (154)
  Unemployed 4.1% (9)
  Retired 13.2% (29)
Clinical, % (n)
 Peripheral arthritis
  No 60.5% (133)
  Yes 39.5% (87)
 Dactylitis
  No 96.3% (211)
  Yes 3.7% (8)
 Uveitis
  No 63.9% (140)
  Yes 36.1% (79)
 Psoriasis
  No 85.0% (187)
  Yes 15.0% (33)
 Backpain duration 16.6 ± 12.1
 Psoriasis duration 16.1 ± 11.9
 Any back pain
  No 9.2% (20)
  Yes 90.8% (197)
 Current back pain
  No 23.5% (51)
  Yes 76.5% (166)
 Spinal pain in the past week 3.95 ± 2.69
  No 10.5% (23)
  Yes 89.5% (197)
 Tender joints 0.32 ± 1.07
 Swollen joints 0.16 ± 0.94
 Dactylitis score 0.01 ± 0.10
 Enthesitis score 0.20 ± 0.69
 CRP 0.73 ± 1.45
 ESR 24.2 ± 19.2
  1. SD standard deviation, US US dollars, CRP C-reactive protein, ESR erythrocyte sedimentation rate