Table 2.

Analysis for the unilateral–bilateral pain comparisons for the repeated chair stand test (stands/s)^a

Severe	Unilateral, severe	Bilateral, severe–mild	Bilateral, severe–moderate	Bilateral, severe–severe		Unilateral–bilateral contrast P*		Trend P
Unadjusted	0.50, 0.15, 88	0.43, 0.11, 42	0.44, 0.13, 60		0.39, 0.12, 39
Adjusted	0.49, 87	0.43, 42	0.44, 60		0.40, 39		<0.001	0.003

Moderate	Unilateral, moderate	Bilateral, moderate–mild	Bilateral, moderate–moderate				Unilateral–bilateral contrast P*	Trend P
Unadjusted	0.48, 0.14, 130	0.49, 0.14, 67	0.43, 0.11, 71
Adjusted	0.47, 126	0.49, 65	0.45, 70				0.27, 0.61	0.13

Mild	Unilateral, mild	Bilateral, mild–mild					Unilateral–bilateral contrast P*	Trend P
Unadjusted	0.52, 0.13, 201	0.48, 0.14, 89
Adjusted	0.52, 199	0.49, 89					0.21

*All P-values are adjusted for age, gender, comorbidity and BMI.

^aAll data are reported in the following order: mean, s.d. and sample size for unadjusted analyses and mean and sample size for the adjusted analyses.