A cross sectional study on tobacco usage among COVID 19 Positive patients admitted in a tertiary care centre in Mizoram India

Background: Mizoram is one of the states in India with the high prevalence of tobacco usage both in terms of smoke form and smokeless form. In spite of high prevalence of smoking, the state has reported less COVID-19 related mortality. The prevalence of tobacco usage among the COVID-19 positive patients and its relation to clinical symptoms and mortality has not been studied in North East part of India. Aims and Objectives: The aim of the study was to study the association of tobacco usage and its relation to clinical symptoms and mortality in COVID-19 patients. Materials and Methods: A total of 100 COVID 19 positive patients admitted in wards of Zoram Medical College, Mizoram between June and August 2020 were selected using convenient sampling. The patients were interviewed over mobile phone after getting informed oral consent. The details regarding socio-demographic variables, tobacco usage, co morbidities, and clinical symptoms were collected from the patients. Comorbidities and smoking were considered as primary outcome variables. The mean values were compared between study groups using independent sample t-test (two groups). Categorical outcomes were compared between study groups using Chi-square test/Fisher’s Exact test (If the overall sample size was <20 or if the expected number in any one of the cells is