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Table 2 WOMAC index subclasses and clinical examination values

From: Correlation of knee ultrasonography and Western Ontario and McMaster University (WOMAC) osteoarthritis index in primary knee osteoarthritis

Variable

Range

Mean ± SD

WOMAC index (Likert scale)

  Pain

4–16

10.08 ± 2.89

  Stiffness

0–6

3.34 ± 1.72

  Physical function

2–46

26.26 ± 9.6

  Total score

10–67

39.68 ± 12.83

 BMI (kg\m2)

26–46.18

32.64 ± 5.14

 C/O duration (year)

1–10

3.53 ± 2.99

 Ext. ROM (degree)

0–5

0.90 ± 1.77

 Quadr. circ. (cm)

40–63

51.86 ± 6.01

  1. BMI body mass index, C/O complaint, Ext. ROM degree of extension range of motion, Quadr. Circ. quadriceps circumference