Table 4.

Discrimination between aggressive (n=31) and non-aggressive (n=48) groups.

Cut-off	Sensitivity	95% CI	Specificity	95% CI	PPV	95% CI	NPV	95% CI
0	100.0	88.8-100.0	0.0	0.0-7.4	39.0	28.2-50.6
0/1	96.8	83.3-99.9	75.1	62.7-88.0	73.0	56.6-85.8	97.4	86.2-99.9
1/3	93.6	78.6-99.2	89.6	77.3-96.5	85.2	68.5-95.1	95.6	84.9-99.5
3/4	90.3	74.2-98.0	89.6	77.3-96.5	84.7	67.6-94.9	93.5	82.2-98.7
4/5	77.4	58.9-90.4	91.7	80.0-97.7	85.6	66.8-96.0	86.4	73.9-94.4
5/6	74.2	55.4-88.1	91.7	80.0-97.7	85.1	65.7-95.9	84.7	72.1-93.2
6/7	74.2	55.4-88.1	93.8	82.8-98.7	88.4	69.2-97.6	85.0	72.6-93.3
7/8	74.2	55.4-88.1	95.8	85.7-99.5	91.9	73.4-99.1	85.3	73.0-93.5
8/9	74.2	55.4- 88.1	97.9	88.9- 99.9	95.8	78.3- 99.9	85.6	73.5- 93.6
9/10	71.0	52.0-85.8	97.9	88.9-99.9	95.6	77.4-99.9	84.1	71.8-92.5
10/11	71.0	52.0-85.8	100.0	92.6-100.0	100	83.9-100.0	84.3	72.3-92.6
11/12	64.5	45.4-80.8	100.0	92.6-100.0	100	82.4-100.0	81.5	69.3-90.4
12/13	61.3	42.2-78.2	100.0	92.6-100.0	100	81.5-100.0	80.2	67.9-89.3
13/14	54.8	36.0-72.7	100.0	92.6-100.0	100	79.4-100.0	77.6	65.2-87.2
15/17	45.2	27.3-64.0	100.0	92.6-100.0	100	75.3-100.0	74.0	61.7-84.1
19/20	41.9	24.5-60.9	100.0	92.6-100.0	100	73.5-100.0	72.9	60.6-83.1
10/11	38.7	21.8-57.8	100.0	92.6-100.0	100	71.5-100.0	71.8	59.5-82.2
22/25	32.3	16.7-51.4	100.0	92.6-100.0	100	66.4-100.0	69.8	57.5-80.3
25/26	25.8	11.9-44.6	100.0	92.6-100.0	100	59.0-100.0	67.8	55.7-78.4
13/14	22.6	9.6-41.1	100.0	92.6-100.0	100	54.1-100.0	66.9	54.8-77.5
14/15	19.4	7.5-37.5	100.0	92.6-100.0	100	47.8-100.0	66	54.0-76.7
30/31	16.1	5.5-33.7	100.0	92.6-100.0	100	39.8-100.0	65.1	53.1-75.8
31/38	6.5	0.8-21.4	100.0	92.6-100.0	100	2.5-100.0	62.6	50.8-73.3
38/39	3.2	0.08-16.7	100.0	92.6-100.0	100	0.0-100.0	61.8	50.1-72.6
39/40	0.0	0.0-11.2	100.0	92.6-100.0			61	49.4-71.8

CI: confidence interval. NPV: negative predictive value. PPV: positive predictive value. cut-off calculated on 18 items.