Arpita Rai - Department of Oral Medicine and Radiology, Dental Institute, Rajendra Institute of Medical Sciences (RIMS), Bariatu, Ranchi – ۸۳۴۰۰۹, India
Nishant Mehta - Department of Oral Health Sciences Centre, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh - ۱۶۰۰۱۲, India
Ansul Kumar - Department of Cardiothoracic and Vascular Surgery, Rajendra Institute of Medical Sciences (RIMS), Bariatu, Ranchi – ۸۳۴۰۰۹, India
Lakhan Majhee - Department of Pharmacology, Rajendra Institute of Medical Sciences (RIMS), Bariatu, Ranchi – ۸۳۴۰۰۹, India
Pratik Verma - Department of Oral Medicine and Radiology, Dental Institute, Rajendra Institute of Medical Sciences (RIMS), Bariatu, Ranchi – ۸۳۴۰۰۹, India
Priyanka Singh - Department of Oral Medicine and Radiology, Dental Institute, Rajendra Institute of Medical Sciences (RIMS), Bariatu, Ranchi – ۸۳۴۰۰۹, India
Zeya Ul Haque - Department of Oral Medicine and Radiology, Dental Institute, Rajendra Institute of Medical Sciences (RIMS), Bariatu, Ranchi – ۸۳۴۰۰۹, India

Background: Tobacco consumption causes altered immune and inflammatory responses which lead to various respiratory diseases such as asthma and chronic obstructive pulmonary disease, as well as cardiovascular and cerebrovascular disorders. Studies have only confirmed the harmful effects of tobacco consumption on the severity of COVID-۱۹. The present study aimed to explore the association between tobacco consumption and the initiation of COVID-۱۹.Methods: This retrospective cohort study was conducted to explore the relationship between tobacco consumption and COVID-۱۹. A brief closed-ended, self-structured questionnaire was prepared to record participants’ responses. The Participants included the individuals who visited Rajendra Institute of Medical Sciences (RIMS), Ranchi, India for the COVID-۱۹ diagnostic test. The statistical analysis was performed using SPSS software (version ۲۴). The chi-square test and logistic regression analysis were also used to predict the odds of getting infected with COVID-۱۹. Findings: A total of ۵۲۱ valid responses were obtained and subjected to analysis. Moreover, ۲۵۶ participants (۴۹.۱۳%) were COVID-۱۹ positive and ۵۷ participants (۱۰.۹۴%) were tobacco users. The odds ratio of tobacco consumption was higher in COVID-۱۹-positive patients compared to COVID-۱۹-negatives (OR=۱.۷۸; ۹۵% CI ۱.۰۱, ۳.۱۳). The current tobacco users had a higher risk of developing COVID-۱۹ as compared to the former users (OR=۴.۸; ۹۵% CI ۱.۳۹, ۱۶.۶۱). The frequency and duration of tobacco use also affected the COVID-۱۹ infectivity rate but these were statistically insignificant.Conclusion: The COVID-۱۹ positivity rate was significantly higher in tobacco users, especially in current tobacco users as compared to former users. Nevertheless, gender and occupation had no significant effect on COVID-۱۹ incidence in this study.

Tobacco, COVID-۱۹, smokeless tobacco, smoking, Nicotine