Table 2:

T stage-based stratification of the model’s performance on intramural and external test subsets

	Intramural test subset (409 CTs with PDA & 829 control CTs)		Metric	Public dataset (194 CTs with PDA & 80 control CTs)		Metric
Tumor stage	Total CTs with PDA (n=409)	Misclassified CTs with PDA (n=49)	Sensitivity (95% CI)	Total CTs with PDA (n=194)	Misclassified CTs with PDA (n=24)	Sensitivity (95% CI)
1	35 (9%)	7 (14%)	0.80 (0.66 to 0.91)	25 (13%)	6 (25%)	0.76 (0.60−0.92)
2	291 (71%)	39 (80%)	0.87 (0.82 to 0.90)	113 (58%)	15 (63%)	0.87 (0.81−0.93)
3	60 (15%)	3 (<0.1%)	0.95 (0.88 to 1.00)	30 (15%)	2 (8%)	0.93 (0.83−1.00)
4	23 (6%)	0	1.00 (1.0 to 1.0)*	26 (13%)	1 (4%)	0.96 (0.88−1.00)

^#All p values < 0.05

^*Insufficient statistical power due to small sample size.