Dietary factors in oral leukoplakia and submucous fibrosis in a population-based case control study in Gujarat, India

To investigate the relationship of specific nutrients and food items with oral precancerous lesions among tobacco users.A population-based case-control study.Villages in Palitana taluk of Bhavnagar district, Gujarat, India.An interviewer-administered food frequency questionnaire, developed and validated for this population, was used to estimate nutrient intake in blinded, house-to-house interviews. Among 5018 male tobacco users, 318 were...