Abstract
Objective: To investigate the prevalence of Crohn's disease (CD) among urban employees in 24 provinces (municipalities and autonomous regions) in China in 2013. Method: The crude annual prevalence of CD among urban employees with medical insurance in 2013 was estimated by using the basic medical insurance database of 24 provinces (municipalities and autonomous regions), as well as the prevalence by sex, age and region. The age-standardized rate based on the 2010 census was also estimated. Results: The crude prevalence of CD among urban employees in 2013 was 3.2/100 000(95%CI:3.1/100 000-3.3/100 000) , and the sex-specific rate was 3.5/100 000 (95%CI:3.3/100 000-3.6/100 000) and 3.0/100 000 (95% CI:2.8/100 000-3.1/100 000) for male and female, respectively. The crude prevalence in different regions indicated that the highest crude prevalence was in the eastern region [5.6/100 000 (95% CI:5.4/100 000-5.8/100 000) ]. Conclusion: The prevalence of CD in China is still lower than that of the western countries, with difference varied in terms of age, gender and region.
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