Table 3.

Correlation with WOMAC Pain Subscale

	Correlation Coefficient	95% CI	p
Age	0.1235	−0.0644, 0.3029	0.1966
BMI	−0.0286	−0.2209, 0.1658	0.774
ROM	−0.059	−0.3171, 0.0487	0.5387
Femoro-tibial angle	−0.1389	−0.157, 0.2155	0.1459
α angle	0.0303	−0.1325, 0.2392	0.7521
β angle	0.0552	−0.1945, 0.1782	0.5647
γ angle	−0.0084	−0.152, 0.2204	0.9299
δ angle	0.0354	−0.225, 0.1472	0.712
Patellar tilt angle	−0.0403	0.0984, 0.443	0.6743
Maximum PD grade	0.2797	0.2282, 0.5438	0.0029
Total PD score	0.3977	−0.0644, 0.3029	<0.0001

Note: ^aBold indicates statistical significance.

Abbreviations: BMI, body mass index; ROM, range of motion; CI, confidence interval; PD, power Doppler; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.