Table 3 Results of group×plate interaction before and after excluding knees with coverage <95% (patella was referent plate), adjusted for age, sex and body mass index

	Difference in cartilage thickness of no OA plates compared with premorbid OA plates		Excluding knees with coverage <95%
	Point estimate (SE)	p Value	Point estimate (SE)	p Value
Lateral tibia	0.03 (0.04)	0.36	0.03 (0.04)	0.39
Medial tibia	−0.04 (0.03)	0.20	−0.03 (0.03)	0.27
Central lateral femur	−0.04 (0.04)	0.28	−0.04 (0.04)	0.33
Central medial femur	0.00 (0.04)	0.96	0.00 (0.04)	0.94
Patella	0.14 (0.06)	0.03	0.08 (0.05)	0.11

OA, osteoarthritis; SE, standard error.