Table 3.

Receiver operating characteristic curve summary statistics

Size, mm (patients)	Sensitivity	Specificity	Youden’s index	ppv	npv
8 (54)	1.000	0.103	1.103	0.074	1.000
9 (87)	0.982	0.144	1.126	0.076	0.991
10 (105)	0.982	0.196	1.178	0.081	0.994
11 (89)	0.982	0.446	1.428	0.113	0.997
12 (127)	0.982	0.560	1.542	0.138	0.998
13 (69)	0.911	0.718	1.629	0.188	0.991
14 (41)	0.804	0.799	1.603	0.223	0.983

Ppv: Positive predictive value; npv: Negative predictive value.