TABLE 1

Study population characteristics

	Training and validation set	Internal test set	External validation set
Age (years)	63.8±14.44	64.4±15.8	50.67±5.87
Female	48	44	40
Pixel spacing (mm)	0.71±0.10	0.70±0.07	0.67±0.07
Slice thickness (mm)	1.19±0.61	1.19±0.59	2±0

Data are presented as mean±sd or %.