Prevalence of Tobacco and Betel Nut Use among Cancer Patients in Two Major Hospitals in Karachi

Abstract

Background: Tobacco use, both smoked and smokeless, is prevalent in South Asia, including Pakistan. It isassociated with various cancers, notably oral, esophageal, and oropharyngeal cancers. Despite the significantcorrelation between tobacco use and cancer, there is limited research on the prevalence of all tobacco forms among cancer patients in Pakistan.