Table 2.

Risk score analysis of NSCLC cases in Chinese cohorts and American cohort.

Risk score	0–2.617	> 2.617–13.820	Prediction accuracy (%)
Chinese cohorts
Controls	59	23	72
NSCLC	8	74	90
Stage I–II NSCLC	2	12	87
Training set
Controls	16	3	84
NSCLC	0	19	100
Stage I–II NSCLC	0	3	100
Validation set
Controls	43	20	68
NSCLC	8	55	87
Stage I–II NSCLC	2	9	82
American cohort
Testing (single-blind) set
Controlsa	87	17	84
NSCLC	5	103	95
Stage I–II NSCLC	3	55	95

^aIncluding normal controls and non-cancer controls (benign nodules).