Tehran University of Medical Sciences Journal of Sleep Sciences 2476-2938 1 3 2016 12 06 120 124 EN Maryam Saraei Center for Research on Occupational Diseases, Tehran University of Medical Sciences, Tehran, Iran Farzaneh Chavoshi Occupational Sleep Research Center, Baharloo Hospital, Tehran University of Medical Sciences, Tehran, Iran Arezu Najafi Occupational Sleep Research Center, Baharloo Hospital, Tehran University of Medical Sciences, Tehran, Iran Reihaneh Heidari Occupational Sleep Research Center, Baharloo Hospital, Tehran University of Medical Sciences, Tehran, Iran Ania Rahimi Golkhandan Center for Research on Occupational Diseases, Tehran University of Medical Sciences, Tehran, Iran 2016 05 20 2016 08 13 Background and Objective: Obstructive sleep apnea (OSA) is considered a common sleep disorder that increases the risk of traffic accidents among drivers. This study aimed to assess the association between Mallampati score and STOP-BANG (Snoring, Tiredness, Observed apnea, Blood Pressure, Body Mass Index, Age, Neck circumference, Gender) score in commercial drivers. Materials and Methods: 1743 male drivers referred for their health license were recruited in this cross-sectional study during September 2013 to December 2015 in Baharloo Hospital, Tehran, Iran. The Persian version of the STOP-BANG ques-tionnaire was used. STO symptoms were self-reported by drivers. Age, height (m), weight (kg), blood pressure (mmHg), neck circumference (cm), and Mallampati score were recorded by physician. STO and P-BANG scores were computed for all the participants. Data were analyzed using ANOVA test for comparing means among different classes of Mallampati score. Results: Among 1743 participated drivers, mean (SD) age was 41 (10.6) years. STOP-BANG score was < 3 in 90.0% of them. Mallampati class II was the most frequent (36.0%) following by I, III, and IV, respectively. STO score was more likely to be higher in classes III and IV with no significant association. P-BANG score had significant linear correlation with Mallampati score (df: 3, F: 34, P < 0.001). STOP-BANG score was associated with higher Mallampati score (df: 3, F: 31, P < 0.001). Conclusion: STOP-BANG and P-BANG scores were significantly associated with Mallampati score. Mallampati score may be used as a screening parameter for OSA in commercial drivers along with available tools such as STOP-BANG and Epworth Sleepiness Scale that is mainly based on self-reports of drivers. https://jss.tums.ac.ir/index.php/jss/article/view/25 https://jss.tums.ac.ir/index.php/jss/article/download/25/36