Development of the “Treatment beliefs in knee and hip OsteoArthritis (TOA)” questionnaire

Table 3 Intraclass correlation coefficient (ICC), mean difference between repeated measures, limits of agreement (LoA), and standard error of measurement (SEM) including systematic differences between repeated measures and error variance

Module	Subscale	ICC	Mean difference	LoA	SEM
Physical activity	positive 9 items	.88	−.44	−7.65; 6.78	.06
Physical activity	negative 4 items	.74	.81	−4.60; 6.23	.10
Pain medication	positive 5 items	.80	.19	−6.44; 6.82	.09
Pain medication	negative 7 items	.83	.59	−6.82; 8.00	.08
Physiotherapy	positive 6 items	.88	.16	−6.35; 6.67	.08
Physiotherapy	negative 3 items	.72	−0.40	−4.81; 4.01	.11
Injections	positive 6 items	.88	0.05	−5.85; 5.96	.07
Injections	negative 6 items	.83	.45	−5.06; 5.96	.07
Arthroplasty	positive 8 items	.66	−.20	−9.14; 8.75	.08
Arthroplasty	negative 6 items	.77	.45	−5.52; 6.41	.07

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