Health-Related Quality of Life and the Role of the Big Five Personality Traits in Postlingually Deaf Cochlear Implant Users

Abstract

Purpose: This study aimed to investigate the relationships between generic health-related quality of life (HRQoL), the Big Five personality traits, speech understanding, and sociodemographic factors in a group of postlingually deaf cochlear implant (CI) users. Method: The study group included 81 participants who met the inclusion criteria: profound sensorineural hearing loss, 18 years of age or more, and using at least one CI implanted after 18 years of age. Some 18% were bilateral CI users. The mean age of the participants was 60 ± 11 years. They completed the Assessment of Quality of Life (AQoL-8D) and the Short Form IPIP-BFM-20 (shortened version of the 50-item Big Five Markers Questionnaire from the International Personality Item Pool). The response rate was 57%. Results: The HRQoL was lower in the study group than in the general population. Moreover, all Big Five personality characteristics were significantly lower than the Polish norm. The personality traits of intellect/imagination, emotional stability, and extraversion contributed to higher overall HRQoL scores, particularly for most psychosocial AQoL-8D dimensions. Higher agreeableness predicted higher HRQoL in the Independent Living, Pain, Coping, and Relations dimensions, whereas higher extraversion predicted higher physical HRQoL in the Senses dimension. Better speech understanding in quiet and noisy environments correlated with better physical HRQoL. Additionally, male gender and higher education were linked to higher global HRQoL. Conversely, being female was associated with lower global psychosocial and physical HRQoL, particularly in Pain. Higher education also contributed to improved physical HRQoL. Conclusions: In general, CI users have lower physical and psychosocial HRQoL as well as in measures that depend on personality traits. In terms of physical HRQoL, speech understanding plays an important role. It might prove useful if CI candidates and users were given a Big Five personality evaluation and an HRQoL assessment based on which they might be offered counseling or psychological intervention.