Retrospective Study
Copyright ©The Author(s) 2025.
World J Gastroenterol. Jan 21, 2025; 31(3): 95871
Published online Jan 21, 2025. doi: 10.3748/wjg.v31.i3.95871
Table 1 Characteristics of the eligible participants
Characteristic
n
%
Total22421100
Sex
    Female426319.0
    Male1815881.0
Age group in year
    18-29630128.1
    30-39881839.3
    40-49348715.6
    50-59224410.0
    60-6911385.1
    70-794331.9
Hospital location
    Beijing665929.7
    Chengdu10484.7
    Guangzhou13486.0
    Lanzhou377116.8
    Nanjing959542.8