P129 Neck circumference versus body mass index to predict moderate to severe obstructive sleep apnoea

Abstract Introduction Neck circumference (NC) and body mass index (BMI) are both markers of obesity established parameters in clinical models for the prediction obstructive sleep apnoea (OSA). It is unclear if one parameter superior OSA severity or addition significantly enhances accuracy model. In this study, we evaluated performance NC BMI as predictors moderate to severe (AHI≥15) when adjusted age male gender. Methods A retrospective chart review all diagnostic studies (SS) conducted from November 2017 October 2018 was performed. All SS which were reported normal with a diagnosis included. Three multiple regression constructed AHI≥15 dependent variable following independent variables: + Age Gender (NAG), (BAG), (BNAG). The Akaike information criterion (AIC) used model comparison. that more than 2 AIC units lower considered be Results 112 had AHI<15 193 AHI≥15. NAG, BAG BNAG 333.9, 343.8 334.7 respectively. Discussion NAG lowest AIC. incorporating not different only NC.