Systematic Reviews
Copyright ©The Author(s) 2019.
World J Gastroenterol. Dec 21, 2019; 25(47): 6866-6875
Published online Dec 21, 2019. doi: 10.3748/wjg.v25.i47.6866
Table 2 Characteristics of included studies
Ref.CountryType of studyType of IBDYear data setnAverage patient ageSpecific group
Linares et al[16]ArgentinaRegistryUC/CD1987-19933938Multicentre
Salgado et al[18]BrazilCase-controlCD2017145-163NRSingle Centre
Lima Martins et al[13]BrazilRegistryUC/CD2012-20141048NRMulticentre
Queiroz et al[20]BrazilCase-controlUC/CD201785/54140.0Single Centre
Santos et al[21]BrazilRegistryUC/CD201655649.7Single Centre
da Silva et al[22]BrazilCross-sectionalUC2011-201226733.4Multicentre
Parente et al[12]BrazilRegistryUC/CD1988-201225625.2Multicentre
Victoria et al[11]BrazilRegistryUC/CD1986-200511538.0Multicentre
Santana et al[23]BrazilCross-sectionalCD20066537.3Single Centre
Torres Udos et al[24]BrazilCross-sectionalCD1992-20079033Single Centre
Cohen et al[25]BrazilCross-sectionalUC/CD20085042.2Single Centre
Hardt et al[26]BrazilCross-sectionalCD2000-201217535.5Multicentre
Santana et al[27]BrazilCross-sectionalCD20054738.5Single Centre
de Barros et al[28]BrazilCross-sectionalUC/CD2012-20134037.8Single Centre
Simian et al[17]ChileRegistryUC/CD2012-201571636Single Centre
Alvarez-Lobos et al[19]ChileCase-controlCD2010-201294/9035.5Single Centre
Barreto et al[15]ColombiaRegistryUC/CD1991-20062640Single Centre
Buenavida et al[16]UruguayRegistryUC/CD2007-20083440.7Multicentre