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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

years

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