{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T09:13:25Z","timestamp":1789982005323,"version":"4.0.1"},"reference-count":60,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2013,4,17]],"date-time":"2013-04-17T00:00:00Z","timestamp":1366156800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Eur J Clin Investigation"],"published-print":{"date-parts":[[2013,6]]},"abstract":"Abstract<\/jats:title>Background<\/jats:title>Epidemiologic research suggests that increased cancer risk due to chronic arsenic exposure persists for several decades even after the exposure has terminated. Observational studies suggest that antioxidants exert a protective effect on arsenical skin lesions and cancers among those chronically exposed to arsenic through drinking water. This study reports on the design, methods and baseline analyses from the Bangladesh Vitamin E and Selenium Trial (BEST<\/jats:styled-content>), a population\u2010based chemoprevention study conducted among adults in Bangladesh with visible arsenic toxicity.<\/jats:p><\/jats:sec>Materials and methods<\/jats:title>Bangladesh Vitamin E and Selenium Trial is a 2\u00d72 full factorial, double\u2010blind, randomized controlled trial of 7000 adults having manifest arsenical skin lesions evaluating the efficacy of 6\u2010year supplementation with alpha\u2010tocopherol (100\u00a0mg daily) and L<\/jats:italic>\u2010selenomethionine (200\u00a0\u03bcg daily) for the prevention of nonmelanoma skin cancer.<\/jats:p><\/jats:sec>Results<\/jats:title>In cross\u2010sectional analyses, we observed significant associations of skin lesion severity with male gender (female prevalence odds ratio (POR<\/jats:styled-content>)\u00a0=\u00a00\u00b787; 95% CI<\/jats:styled-content>\u00a0=\u00a00\u00b779\u20130\u00b796), older age (aged 36\u201345\u00a0years, POR<\/jats:styled-content>\u00a0=\u00a01\u00b727; 95% CI<\/jats:styled-content>\u00a0=\u00a01\u00b713\u20131\u00b742; aged 46\u201355\u00a0years, POR<\/jats:styled-content>\u00a0=\u00a01\u00b744; 95% CI<\/jats:styled-content>\u00a0=\u00a01\u00b727\u20131\u00b764 and aged 56\u201365\u00a0years, POR<\/jats:styled-content>\u00a0=\u00a01\u00b750; 95% CI<\/jats:styled-content>\u00a0=\u00a01\u00b726\u20131\u00b778 compared with aged 25\u201335\u00a0years), hypertension (POR<\/jats:styled-content>\u00a0=\u00a01\u00b729; 95% CI<\/jats:styled-content>\u00a0=\u00a01\u00b708\u20131\u00b755), diabetes (POR<\/jats:styled-content>\u00a0=\u00a02\u00b713; 95% CI<\/jats:styled-content>\u00a0=\u00a01\u00b732\u20133\u00b746), asthma (POR<\/jats:styled-content>\u00a0=\u00a01\u00b755; 95% CI<\/jats:styled-content>\u00a0=\u00a01\u00b703\u20132\u00b732) and peptic ulcer disease (POR<\/jats:styled-content>\u00a0=\u00a01\u00b720; 95% CI<\/jats:styled-content>\u00a0=\u00a01\u00b707\u20131\u00b735).<\/jats:p><\/jats:sec>Conclusions<\/jats:title>We report novel associations between arsenical skin lesions with several common chronic diseases. With the rapidly increasing burden of preventable cancers in developing countries, efficient and feasible chemoprevention study designs and approaches, such as employed in BEST<\/jats:styled-content>, may prove both timely and potentially beneficial in conceiving cancer chemoprevention trials in Bangladesh and beyond.<\/jats:p><\/jats:sec>","DOI":"10.1111\/eci.12085","type":"journal-article","created":{"date-parts":[[2013,4,1]],"date-time":"2013-04-01T06:06:45Z","timestamp":1364796405000},"page":"579-588","source":"Crossref","is-referenced-by-count":45,"title":["Baseline comorbidities in a skin cancer prevention trial in Bangladesh"],"prefix":"10.1111","volume":"43","author":[{"given":"Maria","family":"Argos","sequence":"first","affiliation":[{"name":"Department of Health Studies The University of Chicago Chicago IL USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mahfuzar","family":"Rahman","sequence":"additional","affiliation":[{"name":"UChicago Research Bangladesh (URB), Ltd. 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