Reliability of computerized image analysis for the evaluation of serial synovial biopsies in randomized controlled trials in rheumatoid arthritis

Table 2 Estimates of the variance components (between and within patients) and of the intraclass correlations (single rater and average of raters)

Cell type	Intra-observer				Inter-observer
	Between patients	Within patients	ICC	ICC of the mean of two observations	Between patients	Within patients	ICC	ICC of the mean of three observations
CD3⁺ cells	11.59	1.73	0.87	0.93	10.13	4.85	0.68	0.86
CD38⁺ cells	1.35	0.82	0.62	0.77	8.65	3.83	0.69	0.87
CD68⁺ cells	20.32	7.35	0.73	0.85	18.92	7.19	0.72	0.89

ISSN: 1478-6362