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. 2017 Oct 16;25:106–111. doi: 10.1016/j.ebiom.2017.10.014

Table 1.

Baseline characteristics.

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.

a

Data were available for 1078 cases.