Correlation and agreement between physical and ultrasound examination after a training session dedicated to the standardization of synovitis assessment in rheumatoid arthritis patients

Quintana-López, Gerardo; Maldonado-Cañón, Kevin; Flórez-Suárez, Jorge Bruce; Méndez-Patarroyo, Paul; Coral-Alvarado, Paola; Calvo, Enrique

doi:10.1186/s42358-021-00227-y

Advances in Rheumatology

Table 2 Interobserver agreement and concordance for physical examination (PE) tenderness and swelling assessment

From: Correlation and agreement between physical and ultrasound examination after a training session dedicated to the standardization of synovitis assessment in rheumatoid arthritis patients

Joint	Inter-observer agreement and concordance
	PE tenderness assessment				PE swelling assessment
	Fleiss kappa	95% CI	p value	Count	Fleiss kappa	95% CI	p value	Count
Right shoulder	0.521	0.494–0.652	< 0.0001	83	0.249	0.124–0.322	0.0001	27
Left shoulder	0.446	0.198–0.546	< 0.0001	64	0.134	0.092–0.184	0.018	23
Right elbow	0.4	0.308–0.537	< 0.0001	71	0.146	0.092–0.287	0.012	69
Left elbow	0.403	0.258–0.446	< 0.0001	64	0.245	0.166–0.392	0.0001	79
Right wrist	0.392	0.263–0.548	< 0.0001	78	0.121	0.007–0.168	0.030	123
Left wrist	0.325	0.261–0.419	< 0.0001	72	0.042	− 0.192 to 0.234	0.259	145
Right MCP1	0.394	0.326–0.551	< 0.0001	50	− 0.166	− 0.178 to 0.151	0.995	134
Right MCP2	0.298	0.225–0.362	< 0.0001	53	0.13	0.109–0.140	0.023	158
Right MCP3	0.282	0.153–0.323	< 0.0001	49	0.218	0.070–0.292	0.0004	109
Right MCP4	0.297	0.235–0.379	< 0.0001	33	0.397	0.376–0.476	< 0.0001	53
Right MCP5	0.379	0.236–0.477	< 0.0001	36	0.306	0.272–0.387	< 0.0001	63
Left MCP1	0.304	0.187–0.394	< 0.0001	44	0.094	0.024–0.148	0.073	95
Left MCP2	0.444	0.391–0.619	< 0.0001	36	0.262	0.133–0.314	< 0.0001	110
Left MCP3	0.382	0.323–0.453	< 0.0001	41	0.27	0.268–0.334	< 0.0001	69
Left MCP4	0.315	0.086–0.375	< 0.0001	32	0.177	0.059–0.232	0.003	45
Left MCP5	0.353	0.183–0.569	< 0.0001	26	0.217	0.172–0.266	0.0004	71
Right PIP1	0.299	0.050–0.367	< 0.0001	22	0.128	0.087–0.227	0.023	53
Right PIP2	0.353	0.310–0.379	< 0.0001	28	0.042	0.015–0.094	0.258	95
Right PIP3	0.351	0.312–0.486	< 0.0001	30	− 0.017	− 0.102 to 0.113	0.603	118
Right PIP4	0.232	0.111–0.250	< 0.0001	28	0.074	0.037–0.117	0.126	82
Right PIP5	0.396	0.294–0.431	< 0.0001	26	0.245	0.091–0.318	0.244	48
Left PIP1	0.165	0.018–0.304	< 0.0001	21	0.02	− 0.203 to 0.242	0.376	39
Left PIP2	0.167	0.085–0.299	< 0.0001	24	− 0.061	− 0.236 to 0.2	0.827	50
Left PIP3	0.298	0.196–0.368	< 0.0001	35	0.077	− 0.071 to 0.219	0.116	101
Left PIP4	0.185	0.018–0.267	< 0.0001	31	0.121	0.056–0.197	0.030	74
Left PIP5	0.339	0.270–0.573	< 0.0001	18	0.113	0.041–0.267	0.040	46
Right knee	0.476	0.318–0.530	< 0.0001	48	0.428	0.295–0.525	< 0.0001	58
Left knee	0.379	0.350–0.471	< 0.0001	57	0.214	0.038–0.362	0.0005	62
Overall agreement (%)	0.449 (81.7%)	0.403–0.493	< 0.0001		0.227 (66%)	0.203–0.250	< 0.0001

MCP, metacarpophalangeal; PIP, proximal interphalangeal

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ISSN: 2523-3106

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