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Introduction: This study aimed to validate three age-adjusted versions of a Hearing Screening Questionnaire for Preschoolers, in Brazilian Portuguese, based on parents' perception of their children's hearing and oral language. Methods: Psychometric validation was conducted on three questionnaires, each comprising nine items with Yes/No responses. Three items focused on hearing screening at birth, and six assessed hearing and oral language. The study included 152 parents and their children, who attended day care centers in Belo Horizonte, Brazil. The children were categorized into three age bands: 12 to 18 months, 19 to 35 months, and 36 to 48 months. Audiological assessments, including tympanometry, transient-evoked otoacoustic emissions (TOAE) and pure-tone audiometry (when applicable), were performed on the children. In case of abnormal findings in the previous exams, auditory brainstem response (ABR) testing was conducted. Descriptive data, false alarm, and false-negative analyses were carried out. Results: Considering any type of hearing loss, whether unilateral or bilateral, the questionnaires showed a false-negative rate of 41.17% (7/17 children). However, when considering only bilateral hearing loss, the questionnaire showed a false alarm rate of 31.69% (45/142) and a false-negative rate of 30.0% (3/10). When focusing exclusively on sensorineural hearing loss, the questionnaire identified two children (1.31%), with a false-negative rate of 0% but a false-positive rate of 33.33%. Conclusion: Language-development oriented questionnaires allowed quick screening of potential hearing loss in preschoolers. This study found a robust hit rate with these questionnaires. Their validation signifies a promising and cost-effective tool for conducting hearing screenings in preschool children, especially in nations lacking a comprehensive school screening policy.The validated questionnaire affords an easy-to-apply, low-cost and effective instrument for preschool hearing screening.

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