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

Table 2 Diagnostic values for overall tears

Test	Se	95%CI	Sp	95%CI	Ac	PPV	NPV	LR +	LR -	DOR
Painful arc	0.85	0.79-0.90	0.73	0.60-0.84	0.83	0.91	0.60	3.22	0.20	16.27
Empty can
P	0.80	0.71-0.87	0.82	0.69-0.90	0.81	0.89	0.68	4.35	0.24	17.78
P and W	0.75	0.63-0.84	0.93	0.81-0.98	0.82	0.94	0.70	10.75	0.27	40.00
Full can
P	0.78	0.69-0.85	0.81	0.68-0.90	0.79	0.90	0.63	4.15	0.27	15.26
P and W	0.63	0.50-0.74	0.91	0.78-0.96	0.74	0.91	0.63	6.76	0.41	16.53
Resisted external rotation
P	0.48	0.39-0.57	0.84	0.71-0.92	0.59	0.87	0.43	3.01	0.62	4.87
P and W	0.40	0.31-0.50	0.95	0.85-0.99	0.58	0.95	0.43	8.89	0.62	14.25
Drop arm	0.19	0.13-0.25	0.98	0.89-1.00	0.37	0.97	0.26	9.21	0.83	11.10
Neer’s sign	0.78	0.71-0.84	0.82	0.69-0.90	0.79	0.93	0.53	4.26	0.27	15.92
Hawkins’	0.80	0.73-0.85	0.65	0.51-0.77	0.77	0.88	0.49	2.30	0.31	7.53
MRI	0.97	0.93-0.99	0.96	0.86-0.99	0.97	0.99	0.90	23.76	0.03	752

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.