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Table 2 Baseline characteristics of the 50 patients for whom radiographs were available

From: Reproducibility and sensitivity to change of various methods to measure joint space width in osteoarthritis of the hip: a double reading of three different radiographic views taken with a three-year interval

Baseline characteristic Low stratum: JSW <2.5 mm (n = 25) High stratum: JSW ≥ 2.5 mm (n = 25) Total (n = 50)
Age (years; mean ± SD) 60.6 ± 8.2 59.9 ± 10.9 60.2 ± 9.6
Sex (n [%] female) 15/25 (60%) 14/25 (56%) 29/50 (58%)
BMI (kg/m2; mean ± SD) 27.5 ± 5.5 25.8 ± 3.0 26.6 ± 4.5
Disease duration (years; mean ± SD) 5.2 ± 4.5 3.6 ± 3.2 4.4 ± 4.0
Lequesne index (0–24; mean ± SD) 7.2 ± 2.0 6.9 ± 1.9 7.1 ± 2
WOMAC (total score: 0–100; mean ± SD) 35 ± 23.3 27.10 ± 15.75 31.12 ± 20.15
Global pain on VAS (mm; mean ± SD) 39.4 ± 25.8 35. 7 ± 15.1 37.6 ± 21.0
  1. BMI, body mass index; JSW, joint space width; SD, standard deviation; VAS, visual analogue scale; WOMAC, Western and Ontario MacMaster University.