Feasibility of conducting a randomized controlled trial to evaluate the effect of motivational interviewing on hearing-aid use

Abstract

Objectives: The aim of this study was to evaluate the feasibility of conducting a randomized controlled trial (RCT) on the effect of motivational interviewing (MI) on hearing-aid use.

Design: This was a pilot single-blind, randomized parallel-group study conducted in the UK.

Study sample: Thirty-seven adult patients who reported using their hearing aid(s) less than four hours per day were randomized to MI combined with Standard Care (MISC) (n = 20), and Standard Care only (SC) (n = 17).

Results: Of 220 patients invited, 37 were enrolled giving the recruitment rate of 17%. One participant withdrew giving the retention rate of 97%. It was feasible to combine MI with SC for facilitating hearing-aid use and deliver the intervention with high fidelity in an audiology setting. The measure on hearing-aid use (data logging) one month after interventions favoured the MISC group.

Conclusions: This pilot study suggests that conducting an RCT on using MI for facilitating hearing-aid use in people who do not use their hearing aids is feasible, and that MI combined with SC may have more positive effects on hearing-aid use compared to SC only.

Keywords: Motivational interviewing; amplification; feasibility study; hearing-aid use.