Table 2.

Relationship between patella inclination, sulcus angle and patella height and Western Ontario and McMaster University Osteoarthritis Index (WOMAC) pain score

	Univariate Analysis		Multivariate Analysis*
	Regression coefficient (95% CI)	P value	Regression coefficient (95% CI)	P value
LCPA	-1.74 (-3.27, -0.21)	0.03	-1.57 (-3.05, -0.09)	0.04
SA	0.25 (-0.85, 1.34)	0.66	0.04 (-1.02, 1.09)	0.95
I-S ratio	57.26 (-13.23, 127.74)	0.11	33.01 (-36.83, 102.85)	0.35

LCPA = lateral condyle-patella angle, SA = sulcus angle, I-S Ratio = Insall-Salvati Ratio, CI = Confidence Interval

*adjusted for age, gender, BMI, patella cartilage volume and bone size