Prevalence and risk factors for sleep disordered breathing in a Puerto Rican middle-aged population

Background The Berlin Questionnaire [an outcome of a primary care physicians’ conference held in Berlin, Germany, in 1996 that was created to identify patients at high risk for sleep disordered breathing (SDB)] was administered to a representative sample of middle-age population in Puerto Rico in order to document the prevalence of SDB and its associated risk factors.