Category: Measurement; Clinical Practice (assessment, diagnosis, treatment, knowledge translation/EBP, implementation science, program development)
Objective : To develop a profile instrument and global measure of quality of life from the Cochlear Implant Quality of Life (CIQOL) item pool following PROMIS methods.
Design : Analysis of cross-sectional survey data using Rasch analysis.
Setting : Community-based survey.
Participants (or Animals, Specimens, Cadavers) : 371 adults with cochlear implants (CIs) for 1 year (222 females; mean age 59.5 years; mean time since CI 7.6 years).
Interventions : Not applicable.
Main Outcome Measure(s) : A profile instrument and global measure were developed from the CIQOL item pool, which consists of 81 items in 6 domain constructs (communication, emotional, entertainment, environment, listening effort, social). These domains were established as unidimensional using factor and Rasch analysis in prior work.
Results : The CIQOL-35 Profile instrument, which consists of 35 items, provides scores for each of the 6 CIQOL domains. The person separation indices for the CIQOL-35 Profile ranged from 2.52-3.17 (strata= 3.69-4.56) and person measure reliability was >0.85 for all domains. The 10-item CIQOL-10 Global measure provides a single CIQOL score with a person separation index of 2.87 (strata= 4.16) and person measure reliability of 0.89. Both the CIQOL-35 Profile and CIQOL-10 Global demonstrated good fit to the Rasch model.
Conclusions : To date, there have been few valid and reliable patient reported outcome measures for adult CI patients. This study presents the development of the CIQOL-35 Profile and CIQOL-10 Global, which assess quality of life in adult cochlear implant patients. These instruments provide psychometrically sound and efficient measures that will useful for auditory rehabilitation professionals and researchers.
Theodore McRackan– Assistant Professor, Medical University of South Carolina, Charleston, South Carolina
Craig Velozo– Professor and Program Director of Occupational Therapy, Medical University of South Carolina, Charleston, South Carolina
Judy Dubno– Professor, Medical University of South Carolina, Charleston, South Carolina
Brittany Hand– Assistant Professor, The Ohio State University, Columbus, Ohio