Table IV.

Subgroup analysis for small (≤ 20 mm) lung nodules

Parameter	Low-dose group (n = 18)	Standard-dose group (n = 25)	P-value
Diagnostic performance, n (%):
Diagnostic yield	13/18 (72.2%)	18/25 (72.0%)	0.987
Sensitivity	11/11 (100%)	17/18 (94.4%)	1.000
Specificity	7/7 (100%)	7/7 (100%)	–
Overall accuracy	18/18 (100%)	24/25 (96%)	1.000
Complications, n:
Pneumothorax	2	2	1.000
Lung haemorrhage	7	7	0.452
Radiation dose [mGy · cm]:
DLP	39.9 ±14.4	399.1 ±120.8	< 0.001

DLP – dose-length product.