Table 3.

The LLF of the DLD system and the observers according to the nodule location

	Non-danger zone	Danger zone	p-value
DLD system	83.2 (89/107)	64.2 (70/109)	0.008*
Thoracic radiologists	84.6 (181/214)	81.7 (178/218)	> 0.999
Non-thoracic radiologists	77.1 (165/214)	56.4 (123/218)	< 0.001*
Radiology residents	75.5 (323/428)	56.7 (247/436)	< 0.001*

DLD Deep learning-based nodule detection, LLF Lesion localization fraction

^*p < 0.05 was regarded as statistically significant. For group-averaged comparison, corrected p-values are presented (multiplied by 4). Denominator for the LLF calculation corresponds to the total number of true lesions multiplied by the number of readers in the respective group