Comparing four standard Sleep Questionnaires to Polysomnography to predict possibility of Obstructive Sleep Apnea and its severity

Abstract

The commonly used screening tools; Epworth Sleepiness Scale Abstract Background and Aims: Obstructed Sleep Apnea (OSA) is emerging as a significant problem in South East Asia with the rise of Obesity. Polysomnography (PSG) being expensive in Nepal, is usually deferred. The commonly used screening tools are cornerstone to evaluate clinical possibility and effects of OSA without having to rely on the PSG at the onset in Nepal. In this study, we proposed the use of four sleep related questionnaires separate as well as in combination to clinically predict OSA and its severity. And to do that we have compared these scores with Apnea Hypo-apnea Index (AHI) derived from the gold standard level one PSG. MethodThis was a prospective randomized trial comparing level one polysomnography with individual scores from Epworth Sleepiness Score, STOP BANG score, Pittsburg Sleep Quality and Functional Outcome of Sleep Quality-10 and the composite sleep score from all the four.