Table 1.
Characteristics | Development data set | Test data set |
---|---|---|
No. of images | 32,208 | 11,481 |
No. of endoscopists | 33 | 13 |
No. of patients | 1768 | 397 |
Age, mean (SD), y | 52.7 (13.2)a | 50.4 (11.2) |
Sex, No. (%) | ||
Male | 480 (45)a | 168 (43) |
Female | 598 (55)a | 226 (57) |
H. pylori status, No. (%) | ||
Positive | 753 (43) | 72 (18) |
Negative | 1015 (57) | 325 (82) |
SD, standard deviation.
Data were available for 1078 cases.