Table 2.

Osteoarthritis as an explanatory variable for maximum relative power during lift off per body weight for males and females, unadjusted and adjusted

	N	Regression coefficient	95% CI	p-value	N	Regression coefficient	95% CI	p-value
Males	Unadjusted				Adjusteda
Clinical knee OA	144	− 6.71	(− 9.68, − 3.75)	< 0.001	128	− 6.00	(− 9.05, − 2.94)	< 0.001

	Unadjusted				Adjustedb
Radiographic knee OA	139	− 1.44	(− 3.14, 0.27)	0.098	123	− 0.76	(− 2.47, 0.96)	0.383
Radiographic hip OA	139	0.16	(− 1.56, 1.87)	0.858	123	− 0.50	(− 2.33, 1.32)	0.587
Radiographic knee & hip OA	139	− 0.06	(− 2.12, 2.00)	0.954	123	− 0.01	(− 2.10, 2.07)	0.989

Females	Unadjusted				Adjusteda
Clinical knee OA	105	− 1.80	(− 4.45, 0.85)	0.180	97	− 2.19	(− 5.17, 0.80)	0.149

	Unadjusted				Adjustedb
Radiographic knee OA	97	− 2.66	(− 4.39, − 0.94)	0.003	89	− 2.02	(− 3.89, − 0.14)	0.035
Radiographic hip OA	93	0.48	(− 1.42, 2.37)	0.620	84	0.38	(− 1.72, 2.48)	0.719
Radiographic knee & hip OA	95	− 0.30	(− 2.37, 1.78)	0.776	86	− 0.02	(− 2.21, 2.17)	0.986

Bold values indicate p < 0.05

^aAdjusted for age, height, social class, smoker status, alcohol consumption and activity time

^bAdjusted for age, height, social class, smoker status, alcohol consumption, activity time and pain in the corresponding joint