TuCASA questionnaire for assessment of children with obstructive sleep apnea: validation.

Objective: The aim of the present study was to validate The Tucson Children's Assessment of Sleep Apnea Study (TuCASA) questionnaire for use in the Brazilian population.

Methods: Of the total 62 children who participated in the present study (27 girls), aged 4 to 11 years, 45 (72.6%) had sleep-disordered breathing (SDB) diagnosed by polysomnography, while 17 (27.