From: Pediatric esophagogastroduodenoscopy in china: indications, diagnostic yield, and factors associated with findings
Characteristics
Total
2268
Shanghai
914
Wuhan
500
Zhengzhou
382
Xiamen
337
Changsha
135
Male/female
1.3:1 (1294/974)
Age (IQR)
8.68 ± 3.25 (0.28–17.58)
0–1 y
16
1–5 y
292
5–12 y
1575
Teenagers (13–18 y)
385
Biopsies
Yes
2235
No
34