Table 6.

Association between outcomes of special tests, performance tests and self-reported knee pain and function

	WOMACa Pain number of observations = 80		WOMACa function number of observations = 80		20 m walkb number of observations = 83		6 min walkc number of observations = 80		Berg Balanced number of observations = 83		Timed chair stande number of observations = 74
	F = 1.74; p = 0.09 R2 = 0.09)		F = 2.27; p = 0.023 R2 = 0.14		F = 1.44; p = 0.18 R2 = 0.05		F = 1.93; p = 0.06 R2 = 0.11		F = 2.06; p = 0.04 R2 = 0.11		F = 1.93; p = 0.06 R2 = 0.11
Explanatory variable	B	SE B	B	SE B	B	SE B	B	SE B	B	SE B	B	SE B
Positive Ely’s	−30.2	40.3	−175.3	138.9	−1.0	1.3	65.4*	31.6	−0.7	1.5	−12.7**	4.4
Positive Lachman’s	−8.9	37.9	109.3	130.5	−0.8	1.2	15.1	29.3	0.5	1.4	−3.7	3.9
Positive McMurray's	36.1	29.2	160.4	100.6	0.01	0.9	−24.9	21.4	−1.7	1.0	0.2	3.1
Positive Waldron sign	−56.3	28.9	−181.5	99.5	−1.4	0.9	44.7*	21.5	0.4	1.0	−2.1	3.0
Positive Apley’s (compression)	0.21	34.8	−66.3	120.0	−1.5	1.1	66.0*	25.8	0.5	1.3	−9.2*	3.7
Positive Apley’s (distraction)	86.9	52.0	489.3**	179.1	3.9*	1.7	−99.4*	38.3	−1.4	1.9	9.9	5.9
Positive Grind	6.1	26.1	75.0	90.0	0.01	0.8	0.7	19.3	1.7	0.9	0.1	2.7
Positive Ober	−21.6	27.8	−51.3	95.7	1.7	0.9	−44.7*	20.2	−2.2*	1.0	2.7	2.9
Age	−2.0	1.1	−2.0	3.9	0.02	0.04	−0.6	0.8	−0.1	0.04	0.1	0.1
Female	37.4	27.3	170.2	94.0	1.6	0.9	−20.3	20.1	−2.6**	1.0	0.9	2.9

Multivariate regression adjusted for age and sex. Significant association (P < 0.05) in bold

Notations for level of p-values as follows: * p < 0.05, ** p < 0.01

^aWOMAC = Western Ontario and McMaster Index

^b20 m walk test is the total time it takes to walk 20 m

^cThe 6-min walk test measures the distance covered during the 6-min walk

^dThe Berg Balance Scale assessed balance during performance of 14 functional tasks

^eThe test measures the time taken to complete 10 full stands from a sitting position as fast as possible