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Table 1 Subject baseline characteristics, N = 23

From: Ultrasound measures of muscle thickness may be superior to strength testing in adults with knee osteoarthritis: a cross-sectional study

  Mean (SD) or percent
Age 63.8 (9.3)
Gender, female 52%
Weight, kg 77.4 (14.5)
BMI 26.9 (3.7)
Pain level 4.1 (1.8)
Symptomatic side, right 52%
Symptom duration (months) 44.8 (62.1)
Symptomatic KL grade
 0 0
 1 1
 2 9
 3 12
 4 0
Asymptomatic KL grade
 0 8
 1 7
 2 7
 3 0
 4 0
WOMAC pain subscale (0–20) 4.6 (3.2)
WOMAC stiffness subscale (0–8) 3.1 (1.7)
WOMAC function subscale (0–68) 17.45 (13.3)
WOMAC total (0–96) 25.3 (17.4)
  1. NRS Numeric Rating System, BMI Body Mass Index, KL Kellgren Lawrence, WOMAC Western Ontario and McMaster Arthritis Index