Prevalence of Sleep Related Symptoms in Four Latin American Cities

(11.4% to 13.3%), insomnia by 34.7% (33.3% to 36%), sedative use by 15.1% (14.1% to 16.2%), daytime napping by 29.2% (27.7% to 30.6%), and a combination of snoring, sleepiness, and observed ap- neas by 3.4% (2.9% to 4%). Men had a higher frequency of snoring and daytime napping, whereas women reported more insomnia and sedative use. Prevalence of OSAS varied from 2.9% among subjects who denied snoring, excessive daytime sleepiness, and observed ap- neas, to 23.5% among those reporting these 3 symptoms. conclusions: A high prevalence of sleep related symptoms and undi- agnosed obstructive sleep apnea in Latin America was observed.