Table 3. Categorizing nodules into Lung-RADS 2022 based on size and nodule type.

Lung-RADS 2022	Malignant				Benign
	Solid	Part solid	Non-solid		Solid	Part solid	Non-solid
2 (benign)	6	0	13		365	25	208
3 (probably benign)	8	19	0		253	50	0
4A (suspicious)	34	0*	N/A		260	0*	N/A
4B (very suspicious)	42	0*	N/A		70	0*	N/A

*, NLST did not incorporate measurement of solid component for part solid nodules, hence all part solid nodules ≥6 mm were classified as Lung-RADS 2022 criteria 3 for our analysis. Lung-RADS, Lung Imaging Reporting and Data System; N/A, not available; NLST, National Lung Screening Trial.