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Table 1 Characteristics of the included cohort studies

From: Association between metabolic syndrome and the incidence of gastric cancer: a meta-analysis of cohort studies

Study Country Design Characteristics of the participants Number of participants Definition of MetS Follow-up period
Diagnosis of gastric cancer Number of gastric cancer cases Incidence reported Variables adjusted NOS
Russo [11] Italy PC Community based population over 40 years 16,677 NCEP-ATP III 1999–2005 Local Cancer Registry 29 M,F,T Age, gender 7
Inoue [12] Japan PC Community based population 27,724 NCEP-ATP III and IDF 1990–2004 National cancer registries 233 M,F Age, gender, study area, smoking status, alcohol intake, daily total physical activity level, and TC 9
Osaki [13] Japan RC General health examinees 38,832 NCEP-ATP III and IDF 1992–2007 Tottori prefectural cancer registry 393 M,F Age, gender, smoking status, and alcohol intake 9
Lindkvist [19] Norway, Austria and Sweden PC Community based population 578,700 NCEP-ATP III 1972–2005 National cancer registries 1210 M,F Age, gender, study cohort, smoking 8
van Kruijsdijk [15] the Netherlands PC Patients with vascular diseases 6172 NCEP-ATP III 1996–2011 National cancer registries 17 M,F,T Age, gender, smoking status, and alcohol intake 7
Lin [16] Norway PC Community based population 192,903 NCEP-ATP III 1994–2008 National cancer registries 373 M,F,T Age, gender, BMI, education, smoking status, and family cancer history 9
Ko [17] Korea RC Community based population 99,565 NCEP-ATP III 2002–2013 Local Cancer Registry 1061 M,F Age, gender, smoking status, alcohol intake, and exercise 9
Yoo [18] Korea PC National sample cohort for health check-up 7,785,098 NCEP-ATP III 2009–2016 National cancer registries 33,929 T Age, gender, smoking, alcohol consumption, exercise, family histories (HTN, DM, CVD, cancers), hemoglobin, SCr, TC, LDL-C, and ALT 9
  1. NOS the Newcastle–Ottawa Scale, MetS metabolic syndrome, NCEP-ATP III National Cholesterol Education Program’s Adults Treatment Panel III, IDF International Diabetes Federation, PC prospective cohort, RC retrospective cohort, M male, F female, T total, TC, total cholesterol, CVD cardiovascular diseases, BMI body mass index, HTN hypertension, DM diabetes mellitus, SCr serum creatinine, LDL-C low-density lipoprotein cholesterol, ALT alanine aminotransferase