TY - JOUR T1 - A comparison of sensitivity and specificity of STOP BANG And NoSAS scoring systems in patients screened to undergo polysomnography JF - ERJ Open Research JO - erjor DO - 10.1183/23120541.sleepandbreathing-2017.P4 VL - 3 IS - suppl 1 SP - P4 AU - B V Murali Mohan AU - Venkatesh Narnavaram AU - Rama Krishna Ravi Chandra Malapaka Y1 - 2017/04/01 UR - http://openres.ersjournals.com/content/3/suppl_1/P4.abstract N2 - Introduction As polysomnography is both expensive and not easily accessible to the susceptible population, screening tools, and scores are used in order to prescreen patients at a high risk. We compared the STOP BANG questionnaire with the recently described NoSAS score for a comparison of sensitivity, specificity, positive and negative predictive values.Objective To compare the ability of the STOP BANG and NoSAS Scoring systems to predict SDB in in a general outpatient population.Materials and Methods 120 patients who presented to our institute were screened using 3 independent scoring systems, clinical symptomatology and Mallampati scoring to undergo a polysomnography. Their STOP BANG scores were compared with NoSAS scores and were analyzed against their AHI for actual existence of sleep disordered breathing. The sensitivity of both the scores was compared.Results Out of 104 Patients with proven OSA, STOP BANG screening score correctly predicted SDB in 96 patients and failed to identify 8, while the NoSAS scoring system correctly predicted SDB in 77 patients while failing to identify 27 patients.Among 16 patients without OSA, STOP BANG identified 8 patients as being high risk for OSA while NoSAS predicted 7 patients as being high risk for OSA. View this table:Conclusions STOP BANG score has a higher sensitivity and specificity for screening patients who are at risk of OSA compared to NoSAS score. However when the cutoff of the NoSAS score is reduced to 7, both its sensitivity and specificity improved significantly. ER -