Table 6. Association of scoring system to predict isolated brain metastasis among patients with non-small cell lung cancer results (Table 5) and predicted risk of isolated brain metastasis using predictive margin analysis.

Score	Predicted rate, %	Lower 95% CI, %	Upper 95% CI, %
10	0.3	0.1	0.5
11	0.4	0.2	0.5
12	0.4	0.2	0.5
13	0.8	0.5	1.0
14	0.6	0.4	0.9
15	0.5	0.3	0.7
16	0.8	0.6	1.0
17	1.2	1.0	1.4
18	1.6	1.3	1.8
19	1.6	1.3	1.8
20	1.7	1.4	1.9
21	2.0	1.7	2.2
22	2.4	2.1	2.6
23	3.0	2.6	3.4
24	3.4	3.1	3.8
25	4.0	3.7	4.3
26	5.3	4.9	5.7
27	6.7	6.2	7.2
28	7.5	6.9	8.0
29	9.5	8.8	10.2
30	9.8	9.0	10.5
31	11.7	10.9	12.5
32	15.4	14.5	16.4
33	16.4	15.3	17.4
34	17.0	16.0	18.0
35	18.9	17.7	20.2
36	20.0	18.3	21.6
37	21.0	19.6	22.4
38	24.8	23.5	26.2
39	26.4	24.8	28.0
40	27.2	25.3	29.2
41	29.5	25.6	33.3

CI, confidence interval.