Table 4.

Sensitivity and Specificity Analysis.

	MP	Lever	Grind	Palpation
Sensitivity	0.65	0.82	0.41	0.91
Specificity	0.95	0.81	1.00	0.76
Positive predictive value	0.98	0.95	1.00	0.95
Negative predictive value	0.36	0.49	0.26	0.64
False positives (%)	0.8	3	0	4
False negatives (%)	29	15	49	7

Note. MP, metacarpophalangeal.