Table 5. Characteristics of routine EGD between the Intensive training < 1-year vs ≥ 1-year groups.

	Intensive training < 1-year group (n = 891)	Intensive training ≥ 1-year group (n = 3,034)	P value
Age, median (range)	67 (21 – 88)	67 (18 – 93)	0.521
Sex (%)Male/female	542 (61)/349 (39)	1894 (62)/1140 (38)	0.388
Interval between EGDs (%)			0.606
≤ 1.5 years	699 (79)	2368 (78)
> 1.5 years	135 (15)	447 (15)
Unknown	56 (6)	219 (7)
Purpose of EGD (%)
Screening/Surveillance	405 (46)/486 (54)	1479 (49)/1555 (51)	0.084
Gastric mucosal atrophy (%)
Atrophy/non-atrophy	647 (73)/244 (27)	2169 (72)/865 (28)	0.512
Past history of gastric cancer (%)
With/without	359 (40)/532 (60)	1033 (34)/2001 (66)	0.001
Past history of esophageal cancer (%)
With/without	91 (10)/800 (90)	361 (12)/2673 (88)	0.166
Endoscope model (%)
GIF-H260/GIF-H290Z	432 (49)/459 (51)	1367 (45)/1667 (55)	0.071
Light source model (%)
SPECTRUM/ELITE	425 (48)/466 (52)	1351 (44)/1683 (56)	0.095
UGI biopsy cases (%) Done/Not done	467 (52)/424 (48)	1527 (50)/1507 (50)	0.274
Inspection time, min, median (range 1 )	11.0 (8.2 – 13.9)	8.9 (6.4 – 11.4)	< 0.001

EGD, esophagogastroduodenoscopy

¹Interquartile range