Table 2.

Baseline characteristics.

	Training Set	Test Set
Number of patients, n (%)	2,364	568
Patients with HT	1,334 (56.4%)	332 (58.5%)
Patients without HT	1,030 (43.6%)	236 (41.5%)
Number of images, n (%)	7,301	1,805
Images from patietns with HT	4,128 (56.5%)	1,086 (60.2%)
Images from patietns without HT	3,173 (43.5%)	722 (39.8%)
Number of nodules, n (%)	2,924	710
Benign nodules	1,920 (65.7%)	476 (67%)
malignant nodules	1,004 (34.3%)	234 (33%)
Nodule sizes (cm)
Benign nodules	1.09 (0.86)	1.08 (0.89)
malignant nodules	1.08 (0.63)	1.06 (0.61)
Patient gender, n (%)
Male	539 (22.8%)	136 (23.9%)
Female	1825 (77.2%)	432 (76.1%)
Mean age (years)	45.29 ± 12.45	45.09 ± 12.41