Journal of Cancer Prevention : pISSN 2288-3649 / eISSN 2288-3657

Table. 2.

Table. 2.

Result of low-dose chest computed tomography screening according to the risk groups (n = 176)

Variable Positive results Clinically significant abnormality not suspicious for lung cancer No or minor abnormality
Risk group 1a 15 (19.0) 4 (5.1) 60 (75.9)
Risk group 2b 9 (25.0) 2 (5.6) 25 (69.4)
Risk group 3c 14 (23.0) 2 (3.2) 45 (73.8)
Total 38 (21.6) 8 (4.5) 130 (73.9)

Values are presented as number (%).

Risk group 1 includes the individuals who meet the criteria of National Lung Screening Trial (NLST): Age 55–74 years and ≥ 30 pack-year history of smoking and smoking cessation < 15 years.
Risk group 2 includes the individuals who would not meet the NLST criteria but are possibly related to the similar risk to those of NLST cohort: Age 50 years and ≥ 20 pack-year history of smoking and additional risk factors that increase the 6-year risk of lung cancer (PLCOM2012 [Prostate, Lung, Colorectal, and Ovarian Cancer Screening model] ≥ 0.0151).
Risk group 3 includes the individuals without risk factors, classified as moderate to low risk group.

J Cancer Prev 2019;24:48-53 https://doi.org/10.15430/JCP.2019.24.1.48
© 2019 J Cancer Prev