TY - JOUR T1 - Impact of the new AASM 2013 scoring criteria on the prevalence of sleep disordered breathing in the general population JF - European Respiratory Journal JO - Eur Respir J VL - 42 IS - Suppl 57 SP - P2039 AU - Sopharat Vat AU - Jose Haba-Rubio AU - Daniela Andries AU - Nadia Tobback AU - Mehdi Tafti AU - Heinzer Raphaël Y1 - 2013/09/01 UR - http://erj.ersjournals.com/content/42/Suppl_57/P2039.abstract N2 - Background: Rules for scoring sleep disordered breathing (SDB) were recently updated by the American Academy of Sleep Medicine (AASM).Aims and objectives: To compare the apnea-hypopnea indexes (AHI) using 3 scoring criteria: AASM2013, AASM2007 and AASMChicago and to determine their impact on the prevalence of SDB in the general population.Methods: 2020 subjects (50% women, 57.3 ± 10.7 years old, BMI 25.5 ± 4.3 kg/m2) participating in an ongoing population-based sleep cohort study (HypnoLaus, Lausanne, Switzerland) underwent complete polysomnographic recordings at home. Hypopnea were first scored according to the Chicago rules. Those associated with a desaturation of ≥4% (AASM 2007) or a ≥3% (∼AASM 2013) were then selected. Prevalence and severity of SDB were compared.Results: AASM 2013 rules yield a higher AHI than AASM2007 and lower than AASMChicago (table 1). For an AHI threshold of ≥5/h, the prevalence of SDB is 63.6% using the AASM2013 rules and, assuming they represent the gold standard, the AASM2007 rules would accounts for a 28.3% rate of false-negatives and the AASMChicago, for a15.6% rate of false-positives.Conclusion: The prevalence of SDB in our population is higher than previously reported and varies with the scoring rules. Mean AHI and SDB prevalence using AASM 2013 rules are greater than with AASM2007 and lower than with AASMChicago. ER -