Impact of Severe to Profound Deafness on Cognitive Functions in Middle-aged Adults
A mild cognitive impairment was observed in 50% of cochlear implant candidates aged 65 years and over, compared to 5-19% in general population. No studies analysed cognition in patients younger than 65 years. The aim of our study was to compare cognitive function between patients with severe and profound hearing loss and patients with normal hearing in patients aged 45 to 64 years.
• Cases: Patients aged between 45 to 64 years with severe to profound bilateral post-lingual sensorineural hearing loss with a maximum intelligibility of 70% (disyllabic words) in free-field silence with hearing aids at 60 dB SPL, current in french
• Controls: normal hearing subjects matched on age, sex and education level