%0 Journal Article %T Smoking and drinking in relation to oral potentially malignant disorders in Puerto Rico: a case-control study %A Lin Li %A Walter J Psoter %A Carmen J Bux¨® %A Augusto Elias %A Lumarie Cuadrado %A Douglas E Morse %J BMC Cancer %D 2011 %I BioMed Central %R 10.1186/1471-2407-11-324 %X Persons diagnosed with either an OPMD (n = 86) [oral epithelial dysplasia (OED), oral hyperkeratosis/epithelial hyperplasia without OED] or a benign oral tissue condition (n = 155) were identified through PR pathology laboratories. Subjects were interviewed using a standardized, structured questionnaire that obtained information, including detailed histories of smoking and drinking. Odds ratios (ORs) for smoking and drinking in relation to having an OPMD, relative to persons with a benign oral tissue condition, were obtained using logistic regression and adjusted for age, gender, education, fruit/vegetable intake and smoking or drinking.For persons with an OPMD and relative to individuals with a benign oral tissue condition, the adjusted OR for current smoking was 4.32 (95% CI: 1.99-9.38), while for former smokers, the ORadj was 1.47 (95% CI: 0.67-3.21), each ORadj relative to never smokers. With regard to drinking, no adjusted ORs approached statistical significance, and few point estimates exceeded 1.0, whether consumption was defined in terms of ever, current, level (drinks/week), or beverage type.In this study, conducted in Puerto Rico, current smoking was a substantial risk factor for OPMDs while former smokers had a considerably reduced risk compared to current smokers. There was little evidence suggesting that alcohol consumption was positively associated with OPMD risk.The clinical term "oral potentially malignant disorders" (OPMDs) is used to refer to a number of clinical presentations that carry an elevated risk of oral cancer [1]. In Puerto Rico, OPMDs most frequently present as leukoplakia and erythroplakia and are often diagnosed histopathologically as oral hyperkeratosis, epithelial hyperplasia, and epithelial dysplasia (OED). Oral hyperkeratosis presents histopathologically as a thickened keratotic layer on the epithelial surface, epithelial hyperplasia is characterized by a thickening of the spinous spinosum (acanthosis) and OED presents as alteratio %U http://www.biomedcentral.com/1471-2407/11/324