Systematic Reviews
Copyright ©The Author(s) 2018.
World J Gastroenterol. Jan 21, 2018; 24(3): 424-437
Published online Jan 21, 2018. doi: 10.3748/wjg.v24.i3.424
Table 2 Prevalence of Crohn’s disease: Study characteristics and comparison between Caucasian and other migrant groups
Study characteristicsStudy quality characteristics
StudyCountry (region)Study periodNumber of casesPrevalence rate, cases/100000Diagnosis based on recognised criteriaEthnicity reporting methodSample frame

SAAsianCaucasianBlackHispanic

Probert (1993)[18]United Kingdom (Leicester)198967633.2-75.8--YesSelf-reportedPopulation
Kurata (1992)[19]United States (California)1982-1988169-5.643.629.84.1NoMedical recordsHospital
Wang (2013)[20]United States (National Database)1996-2007204-45.0154.068.015.0NoSelf-reportedPopulation