Table 2:

Agreement of MRV and CV for IJ stenosis

	N	κ^{^a}	95% CI	P
Full scale (0–3)
Overall	234	0.54	0.44–0.64	<.001
Left	117	0.51	0.36–0.65	<.001
Right	117	0.57	0.43–0.71	<.001
Upper	78	0.65	0.48–0.78	<.001
Mid	78	0.58	0.34–0.76	<.001
Lower	78	0.17	−0.05–0.38	.062
Dichotomized (normal [0] versus abnormal [1–3])^{^b}
Overall	234	0.55	0.44–0.66	<.001
Left	117	0.49	0.32–0.65	<.001
Right	117	0.61	0.45–0.74	<.001
Upper	78	0.67	0.44–0.85	<.001
Mid	78	0.60	0.36–0.80	<.001
Lower	78	0.13	−0.09–0.35	.120

a Weighted κ using squared discrepancies.
b For the dichotomized scores, considering abnormal CV as a standard, sensitivity, 0.79 (95% CI, 0.71%–0.86%); specificity, 0.76 (95% CI, 0.67%–0.83%); PPV, 0.79 (95% CI, 0.71%–0.86%); and NPV, 0.76 (95% CI, 0.67%–0.83%).