Number of Natural Teeth and Oral Impacts: A Study on Sri Lankan Adults

Table 3

Diagnostic performance of 18/19 natural teeth in detecting those with/without oral impacts in ≥60 year olds.

No. of teeth	Oral impacts			Sn	Sp	PPV	NPV
Cutoff	With	Without	Total
≤18	92	83	175	0.67	0.71	0.82	0.53
≥19	37	167	204
Total	129	250	379

Sn: sensitivity; Sp: specificity; PPV: positive predictive value; NPV: negative predictive value.