{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T19:40:40Z","timestamp":1793648440542,"version":"4.5.1"},"reference-count":40,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2013,8,5]],"date-time":"2013-08-05T00:00:00Z","timestamp":1375660800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Intl Journal of Cancer"],"published-print":{"date-parts":[[2014,1]]},"abstract":"<jats:p>A recent study showed an association between hookah\/opium use and gastric cancer but no study has investigated the relationship with gastric precancerous lesions. We examined the association between hookah\/opium and gastric precancerous lesions and subsequent gastric cancer. In a population\u2010based cohort study, 928 randomly selected, healthy, <jats:italic>Helicobacter pylori\u2010<\/jats:italic>infected subjects in Ardabil Province, Iran, were followed for 10 years. The association between baseline precancerous lesions and lifestyle risk factors (including hookah\/opium) was analyzed using logistic regression and presented as odds ratios (ORs) and 95% confidence intervals (CIs). We also calculated hazard ratios (HRs) and 95% CIs for the associations of lifestyle risk factors and endoscopic and histological parameters with incident gastric cancers using Cox regression models. Additionally, the proportion of cancers attributable to modifiable risk factors was calculated. During 9,096 person\u2010years of follow\u2010up, 36 new cases of gastric cancer were observed (incidence rate: 3.96\/1,000 persons\u2010years). Opium consumption was strongly associated with baseline antral (OR: 3.2; 95% CI: 1.2\u20139.1) and body intestinal metaplasia (OR: 7.3; 95% CI: 2.5\u201321.5). Opium (HR: 3.2; 95% CI: 1.4\u20137.7), hookah (HR: 3.4; 95% CI: 1.7\u20137.1) and cigarette use (HR: 3.2; 95% CI: 1.4\u20137.5), as well as high salt intake, family history of gastric cancer, gastric ulcer and histological atrophic gastritis and intestinal metaplasia of body were associated with higher risk of gastric cancer. The fraction of cancers attributable jointly to high salt, low fruit intake, smoking (including hookah) and opium was 93% (95% CI: 83\u201398). Hookah and opium use are risk factors for gastric cancer as well as for precancerous lesions. Hookah, opium, cigarette and high salt intake are important modifiable risk factors in this high\u2010incidence gastric cancer area.<\/jats:p>","DOI":"10.1002\/ijc.28344","type":"journal-article","created":{"date-parts":[[2013,6,24]],"date-time":"2013-06-24T19:18:38Z","timestamp":1372101518000},"page":"181-188","source":"Crossref","is-referenced-by-count":68,"title":["Neglected role of hookah and opium in gastric carcinogenesis: A cohort study on risk factors and attributable fractions"],"prefix":"10.1002","volume":"134","author":[{"given":"Alireza","family":"Sadjadi","sequence":"first","affiliation":[{"name":"Digestive Disease Research Center Tehran University of Medical Sciences Tehran Iran"},{"name":"Department of Epidemiology University of Groningen, University Medical Center Groningen Groningen The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammad H.","family":"Derakhshan","sequence":"additional","affiliation":[{"name":"Digestive Disease 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