Comparing shoulder maneuvers to magnetic resonance imaging and arthroscopic findings in patients with supraspinatus tears

Table 3 Diagnostic values for partial tears

Test	Se	95%CI	Sp	95%CI	Ac	PPV	NPV	LR +	LR -	DOR
Painful arc	0.78	0.66-0.86	0.75	0.61-0.85	0.76	0.81	0.70	3.10	0.30	10.40
Empty can
P	0.74	0.61-0.84	0.82	0.69-0.90	0.78	0.81	0.75	4.06	0.31	12.99
P and W	0.70	0.55-0.81	0.93	0.81-0.98	0.81	0.91	0.75	10.00	0.32	30.77
Full can
P	0.72	0.59-0.82	0.81	0.68-0.90	0.76	0.82	0.71	3.84	0.34	11.10
P and W	0.57	0.41-0.71	0.91	0.79-0.96	0.75	0.84	0.71	6.12	0.48	12.80
Resisted external rotation
P	0.43	0.32-0.55	0.84	0.71-0.92	0.61	0.78	0.52	2.70	0.67	4.01
P and W	0.25	0.15-0.39	0.95	0.85-0.99	0.58	0.87	0.52	5.61	0.78	7.18
Drop arm	0.09	0.04-0.18	0.98	0.89-1.00	0.46	0.86	0.43	4.30	0.93	4.62
Neer’s sign	0.72	0.60-0.81	0.83	0.70-0.91	0.76	0.86	0.68	4.30	0.34	12.63
Hawkins’	0.73	0.61-0.82	0.67	0.52-0.78	0.70	0.75	0.64	2.19	0.40	5.44
MRI	0.91	0.81-0.96	0.98	0.89-1.00	0.94	0.98	0.88	42.59	0.09	444.67

Se: Sensitivity; Sp: Specificity; Ac: Accuracy; PPV: Positive predictive value; NPV: Negative predictive value; LR +: Positive likelihood ratio; LR -: Negative likelihood ratio; DOR: Diagnostic odds ratio; CI: Confidence interval; P: Positive for pain; W: Positive for weakness; MRI: Magnetic resonance imaging.