Table 6.

Known group validity of the Malay version OAKHQOL.

Variables		Physical			Mental			Pain			Social functioning			Social support
	N	Mean	SD	p value	Mean	SD	p value	Mean	SD	p value	Mean	SD	p value	Mean	SD	p value
Gender:				0.208			0.370			0.890			0.761			0.328
Male	63	37.5	17.7		33.8	22.4		37.7	20.9		49.9	29.2		57.4	27.4
Female	128	41.8	21.5		36.7	22.2		38.2	23.5		51.2	27.4		61.5	28.3
Age:				0.321			0.208			0.025			0.767			0.929
≤60 years	161	39.7	19.9		34.8	22.2		36.7	21.9		51.1	28.2		60.3	27.9
>60 years	30	43.6	22.2		40.1	22.5		45.1	25.5		49.2	26.9		59.8	29.2
BMI				0.009			0.040			0.009			0.434			0.940
<25	50	32.5			30.2			30.9	20.2		53.5	29.3		59.9	28.6
≥25	141	42.3			37.7			40.5	22.9		49.9	27.4		60.2	27.9
KL grading				0.002			0.125			0.043			0.527			0.424
0	59	37.8	18.1		33.6	22.4		38.4	22.9		47.6	30.1		58.1	27.9
1	68	36.4	19.2		32.0	20.7		32.6	21.1		51.2	29.3		59.9	29.5
2	33	42.7	21.1		41.2	21.1		39.3	20.8		57.5	21.9		64.9	24.9
3	27	50.0	22.6		41.7	26.0		47.5	24.7		47.7	26.4		56.7	28.9
4	4	69.3	13.5		46.3	13.3		50.0	29.8		56.7	24.6		80.9	13.4

BMI: body mass index (kg/m²), KL: Kellgren–Lawrence grading of knee X-ray.