Volume 134, Issue 4 pp. 948-953
Epidemiology

Case–case comparison of smoking and alcohol risk associations with Epstein–Barr virus-positive gastric cancer

M. Constanza Camargo

Corresponding Author

M. Constanza Camargo

Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA

Correspondence to: M. Constanza Camargo, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Dr., BG 9609/6E206, Rockville, MD 20850, USA. Tel: +240-276-7175, Fax: +240-276-7806, E-mail: [email protected]Search for more papers by this author
Chihaya Koriyama

Chihaya Koriyama

Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan

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Keitaro Matsuo

Keitaro Matsuo

Department of Preventive Medicine, Kyushu University Faculty of Medical Sciences, Fukuoka, Japan

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Woo-Ho Kim

Woo-Ho Kim

Department of Pathology, Seoul National University College of Medicine, Seoul, Korea

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Roberto Herrera-Goepfert

Roberto Herrera-Goepfert

Department of Pathology, National Cancer Institute, Mexico City, Mexico

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Linda M. Liao

Linda M. Liao

Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA

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the Eurgast-EPIC GroupJun Yu

Jun Yu

Department of Medicine and Therapeutics, Institute of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China

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Gabriel Carrasquilla

Gabriel Carrasquilla

Centro de Estudios e Investigación en Salud, Fundación Santa Fe de Bogotá, Bogotá, Colombia

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Joseph J.Y. Sung

Joseph J.Y. Sung

Department of Medicine and Therapeutics, Institute of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China

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Isabel Alvarado-Cabrero

Isabel Alvarado-Cabrero

Servicio de Patología, UMAE Oncología, CMN SXXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico

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Jolanta Lissowska

Jolanta Lissowska

Division of Cancer Epidemiology and Prevention, M Sklodowska-Curie Memorial Cancer Centre and Institute of Oncology, Warsaw, Poland

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Fernando Meneses-Gonzalez

Fernando Meneses-Gonzalez

Programa de Residencia en Epidemiología, Dirección General Adjunta de Epidemiología, Secretaría de Salud, Mexico City, Mexico

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Yashushi Yatabe

Yashushi Yatabe

Department of Pathology and Molecular Diagnostics, Aichi Cancer Center Hospital, Nagoya, Japan

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Ti Ding

Ti Ding

Shanxi Cancer Hospital, Taiyuan, Shanxi, China

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Nan Hu

Nan Hu

Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA

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Philip R. Taylor

Philip R. Taylor

Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA

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Douglas R. Morgan

Douglas R. Morgan

Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, School of Medicine, Vanderbilt University, Nashville, TN, USA

Division of Gastroenterology, University of North Carolina, Chapel Hill, NC, USA

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Margaret L. Gulley

Margaret L. Gulley

Department of Pathology and Laboratory Medicine and the Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA

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Javier Torres

Javier Torres

Unidad de Investigación en Enfermedades Infecciosas, UMAE Pediatría, CMN SXXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico

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Suminori Akiba

Suminori Akiba

Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan

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Charles S. Rabkin

Charles S. Rabkin

Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA

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First published: 31 July 2013
Citations: 50

Abstract

Helicobacter pylori is the primary cause of gastric cancer. However, monoclonal Epstein–Barr virus (EBV) nucleic acid is also present in up to 10% of these tumors worldwide. EBV prevalence is increased with male sex, nonantral localization and surgically disrupted anatomy. To further examine associations between EBV and gastric cancer, we organized an international consortium of 11 studies with tumor EBV status assessed by in situ hybridization. We pooled individual-level data on 2,648 gastric cancer patients, including 184 (7%) with EBV-positive cancers; all studies had information on cigarette use (64% smokers) and nine had data on alcohol (57% drinkers). We compared patients with EBV-positive and EBV-negative tumors to evaluate smoking and alcohol interactions with EBV status. To account for within-population clustering, multilevel logistic regression models were used to estimate interaction odds ratios (OR) adjusted for distributions of sex (72% male), age (mean 59 years), tumor histology (56% Lauren intestinal-type), anatomic subsite (61% noncardia) and year of diagnosis (1983–2012). In unadjusted analyses, the OR of EBV positivity with smoking was 2.2 [95% confidence interval (CI) 1.6–3.2]. The OR was attenuated to 1.5 (95% CI 1.01–2.3) by adjustment for the possible confounders. There was no significant interaction of EBV status with alcohol drinking (crude OR 1.4; adjusted OR 1.0). Our data indicate the smoking association with gastric cancer is stronger for EBV-positive than EBV-negative tumors. Conversely, the null association with alcohol does not vary by EBV status. Distinct epidemiologic characteristics of EBV-positive cancer further implicate the virus as a cofactor in gastric carcinogenesis.

Abstract

What's new?

Although the H.pylori bacteria is the primary cause of gastric cancer, in some cases the Epstein-Barr virus also appears to be involved. In this study, the authors compared smoking and alcohol use between patients with EBV-positive and EBV-negative gastric cancers. No association was found with alcohol use, but smokers were more likely to have EBV-positive cancer.

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