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Table 2 Characteristics of excluded studies

From: Meat and colorectal cancer in Middle Eastern and North African countries: update of literature review

Author, dateCountryType of studyExclusion criteria
Rennert, 2007 [17]IsraelLiterature reviewDid not study the relation between meat and CRC
Almurshed et al., 2009 [40]Saudi ArabiaCase-control studyDid not study the relation between meat and CRC
Tayyem et al., 2013 [35]JordanCase-control studyDid not study the relation between meat and CRC
Chenni et al., 2013 [37]AlgeriaExperimental studyHas been applied to animals
Rohani-Rasaf et al., 2013 [39]IranEcological studyRisk not specified
Aykan et al., 2015 [38]TurkeyCross-sectional studyRisk not specified
Ghahremani et al., 2016 [36]IranCross-sectional studyDid not study the relation between meat and CRC
Azzeh et al., 2017 [32]Saudi ArabiaCase-control studyRisk not specified
Omran et al., 2017 [38]JordanCross-sectional studyRisk not specified
Al-Azri et al., 2019 [29]OmanCross-sectional studyRisk not specified
Ilgaz and Gözüm, 2018 [30]TurkeyCross-sectional studyRisk not specified
Karimi et al., 2019 [31]IranCross-sectional studyDid not study the relation between meat and CRC
Mhaidat et al., 2018 [33]JordanCross-sectional studyRisk not specified
Nasaif and Qallaf, 2018 [34]BahrainCross-sectional studyRisk not specified