Abstract
Objectives: Our study aimed to identify potential factors that
influence rehabilitation outcomes
in late-implanted adolescents and
adults with prelingual deafness and attempted to develop a reliable
nomogram. Design: This retrospective study included 120
subjects less than 30 years of age who had received cochlear
implantation at a single medical center. The Categories of Auditory
Performance (CAP) scale was used to evaluate the rehabilitation
outcomes. A nomogram was constructed using the R and EmpowerStats
software. Results: Univariate analysis indicated higher rates
of auditory performance improvement in younger aged subjects. Residual
hearing and regular and longer implant use were more common among
subjects showing auditory performance improvement.
Multivariate analysis identified
residual hearing (Hazard Ratio, 6.11; 95% Confidence Interval,
1.83-20.41; P<0.01), age at implantation (Hazard Ratio, 0.31;
95% Confidence Interval, 0.14-0.83; P=0.02) and regular CI use (Hazard
Ratio, 7.79; 95% Confidence Interval, 2.50-24.20; P<0.01) as
independent predictors for auditory performance improvement. The
nomogram’s predictive performance was satisfactory as verified by the
calibration curve and Receiver operating characteristic (ROC) curve.Conclusions: We demonstrated that residual hearing, younger
age, and regular CI use were associated with auditory performance
improvement in this cochlear implant user population. Our nomogram model
demonstrated satisfactory predictive performance for this population.