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Table 1 Characteristics of patients with hand OA and control subjects

From: Lower serum clusterin levels in patients with erosive hand osteoarthritis are associated with more pain

  OA patients
(n = 135)
Erosive
(n = 81)
Non-erosive (n = 54) Controls
(n = 53)
Age, years 66.3 ± 8.3 67.6 ± 8.6* 64.3 ± 7.3 64.6 ± 7.6
Sex, female/male 120/15 74/7 46/8 48/5
CRP, mg/l 3.2 ± 3.9 3.4 ± 4.1 2.9 ± 3.7 3.3 ± 5.1
BMI, kg/m2 27.2 ± 4.2 27.5 ± 4.5 26.8 ± 3.7 NA
Disease duration, years 4.4 ± 5.2 4.4 ± 5.1 4.5 ± 5.5 NA
AUSCAN 22.5 ± 10.5 23.9 ± 11.1* 20.3 ± 9.1 NA
AUSCAN - pain 8.4 ± 4.2 9.0 ± 4.4* 7.5 ± 3.8 NA
AUSCAN - stiffness 1.9 ± 0.9 2.0 ± 0.9 1.9 ± 0.9 NA
AUSCAN - function 12.0 ± 6.4 12.8 ± 6.8 10.9 ± 5.6 NA
Algofunctional index 18.6 ± 5.9 19.5 ± 6.4 17.2 ± 4.8 NA
VAS - pain, mm 44.2 ± 22.7 46.7 ± 24.0 40.3 ± 20.3 NA
US osteophytes, n 12.8 ± 5.1 14.0 ± 4.6** 11.0 ± 5.4 NA
GS synovitis (total) 7.5 ± 8.7 9.3 ± 9.2*** 4.8 ± 7.2 NA
GS synovitis (joint count) 5.5 ± 6.4 6.5 ± 6.6*** 3.9 ± 5.8 NA
PD synovitis (total) 2.0 ± 2.7 2.5 ± 3.1* 1.3 ± 1.9 NA
PD synovitis (joint count) 1.7 ± 2.1 2.1 ± 2.3** 1.1 ± 1.6 NA
Knee OA, n (%) 59 (44) 35 (43) 24 (44) NA
Hip OA, n (%) 40 (30) 27 (33) 13 (24) NA
Knee and hip OA, n (%) 28 (21) 18 (22) 10 (19) NA
  1. The data are presented as the mean ± the standard deviation. * p < 0.05, ** p < 0.01, *** p < 0.001 compared with non-erosive. (AUSCAN Australian/Canadian, BMI body mass index, CRP C-reactive protein, GS gray scale, OA osteoarthritis, PD power Doppler, US ultrasound, VAS visual analogue scale)