Table 3.

Reliability for interreader scoring of status scores (Timepoint A) and change scores (summed across all joints).

	ICC		SDD	% SDD_max	% SDD_mean
	Status Scores	Change Scores	Change Scores	Change Scores	Change Scores
Total global score
Synovitis (0–36)	0.77	0.77	2.69	23	28
Tenosynovitis (0–36)	0.70	0.75	1.85	20	25
Periarticular inflammation (0–12)	0.71	0.70	1.70	20	27
Bone edema (0–72)	0.71	NA	2.46	46	50
Bone erosion (0–240)	0.76	0.57	0.48	8	21
Bone proliferation (0–12)	0.85	−0.21	0.87	22	48

ICC: average-measures intraclass correlation coefficient; SDD: smallest detectable difference.