Relationships between Pain, Function and Radiographic Findings in Osteoarthritis of the Knee: A Cross-Sectional Study

Table 3

Level of pain, disability, and stiffness according to the four radiographic stages.

	KL Grade I; (mean ± SD)	KL Grade II; (mean ± SD)	KL Grade III; (mean ± SD)	KL Grade IV; (mean ± SD)	𝑃
WOMAC-A	16,42 ± 2,50	14,00 ± 3,49	13,98 ± 3,34	16,86 ± 2,27	>0.05
WOMAC-B	6,92 ± 2,07	5,41 ± 1,94	5,19 ± 1,69	6,57 ± 1,13	>0.05
WOMAC-C	48,67 ± 7,04	44,02 ± 9,62	47,86 ± 8,55	53,00 ± 9,25	>0.05

KL: Kellgren-Lawrence scale.
WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index.