Table 4.

Reliability for components of PsAMRIS depending on joint region.

	ICC Status Score Time A	ICC Change Scores	SDD Score Time A	SDD Change Scores
Synovitis
MCP synovitis (0–12)	0.68	0.66	1.60	2.13
PIP synovitis (0–12)	0.81	0.58	2.43	2.43
DIP synovitis (0–12)	0.65	0.78	0.69	1.12
Tenosynovitis
MCP tenosynovitis (0–12)	0.77	0.61	1.06	1.58
PIP tenosynovitis (0–12)	0.63	0.58	0.82	1.77
DIP tenosynovitis (0–12)	0.69	0.75	0.70	1.29
Periarticular inflammation
MCP periarticular inflammation (0–4)	0.41	0.72	0.76	1.36
PIP periarticular inflammation (0–4)	0.66	0.52	1.20	1.76
DIP periarticular inflammation (0–4)	0.73	NA	0.90	0.88
Bone edema
MCP bone edema (0–24)	0.76	0.64	0.60	1.98
PIP bone edema (0–24)	0.63	−0.77	1.78	1.20
DIP bone edema (0–24)	0.32	−0.02	1.53	1.43
Bone erosion
MCP bone erosion (0–80)	0.82	0.65	0.54	1.37
PIP bone erosion (0–80)	0.51	0.10	0.44	0.87
DIP bone erosion (0–80)	0.58	0.38	0.89	0.86
Bone proliferation
MCP bone proliferation (0–4)	0.83	0.89	0.18	0.69
PIP bone proliferation (0–4)	0.70	−0.22	0.36	0.78
DIP bone proliferation (0–4)	0.76	NA	0.63	1.08

MCP: metacarpophalangeal; PIP: proximal interphalangeal; DIP: distal interphalangeal; ICC: intraclass correlation coefficient; SDD: smallest detectable difference.