Effect of a smoking ban on respiratory health in nonsmoking hospitality workers: a prospective cohort study.
Objectives: This study aims to investigate the possible relationship between smoking and otorhinolaryngological symptoms in smokers, nonsmokers and ex-smokers. Patients and Methods: Between March 01st, 2014 and March 31st, 2014, a total of 1,840 patients (823 males, 1,017 females) over 25 years of age who were admitted to the ear nose, and throat (ENT) outpatient clinic were included in the study. The patients who were smoking at least 10 cigarettes daily for at least five years were included in the smokers group (n=514). The patients who did not smoke for at least one year following at least five years of smoking were included in the ex-smokers group (n=268). The patients who never smoked were included in the non-smokers group (n=1,058). A form containing all ENT symptoms was given to all patients and the patients were asked to fill the form with their complaints following being informed by the same doctor. Results: Cough, shortness of breath, reflux, dryness of throat, irritation, taste disorder, bad breath, toothache, nasal congestion, smell disorders, snoring, and nasal discharge were found to be significantly higher in the smokers group, compared to the non-smokers group. Cough, sputum, hoarseness, dysphagia, reflux, sore throat, dryness of throat, irritation, stinging, oral aphthae, taste disorder, toothache, bleeding gums, and bad breath were significantly lower in the ex-smokers group. Nasal congestion, nosebleeds, sneezing, nasal discharge, smell disorders, headache, feeling of facial fullness, ear discharge, hearing loss, pain, fullness, dizziness, and tinnitus were statistically significantly lower in the ex-smokers