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Table 1 Baseline characteristics of enrolled subjects

From: Functional index for hand osteoarthritis (FIHOA) is associated with pain, muscle strength, and EQ-5D in hand osteoarthritis

Variables Results
Age (year) 60.0 (54.0–66.0)
Sex, female (n, %) 90 (94.7)
Symptom duration (month) 6.0 (1.0–73.0)
BMI (kg/m2) 23.4 (21.5–24.9)
SBP (mmHg) 127.0 (115.0–135.0)
DBP (mmHg) 74.0 (69.0–80.0)
ESR (mm/hr) 14.0 (9.0–32.0)
CRP (mg/L) 0.6 (0.6–0.8)
Past history
 Hypertension (n, %) 24 (25.3)
 Diabetes mellitus (n, %) 10 (10.5)
Grip strength
 Meana 20.0 (16.5–24.5)
 Right 20.0 (16.0–25.0)
 Left 22.0 (16.0–25.0)
Pinch strength
 Meana 5.7 (4.8–6.5)
 Right 6.0 (5.0–6.8)
 Left 5.5 (4.8–6.5)
VAS pain 34.0 (20.0–52.0)
FIHOA 65.0 (50.0–80.0)
EQ-5D index 0.82 (0.77–0.87)
EQ-VAS 65.0 (50.0–80.0)
Total radiographic severity scores (0–80) b 6.0 (2.0–18.0)
Number of affected joints (0–20) b 5.0 (2.0–9.0)
  1. Data were described as median (Interquartile range) or number (%)
  2. Abbreviation: BMI body mass index; SBP systolic blood pressure; DBP diastolic blood pressure; ESR erythrocyte sedimentation rate; CRP C-reactive protein; VAS visual analogue scale; FIHOA Functional Index for Hand Osteoarthritis; EQ-5D EuroQol-5 dimension
  3. aAverage value of the sum of right and left hand scores
  4. bBased on Kellgren-Lawrence grade