title: Evaluation of a Modified User Guide for Hearing Aid Management.
abstract: OBJECTIVE
  This study investigated if a hearing aid user guide modified using best practice principles for health literacy resulted in superior ability to perform hearing aid management tasks, compared with the user guide in the original form.
  
  
  METHODS
  This research utilized a two-arm study design to compare the original manufacturer's user guide with a modified user guide for the same hearing aid--an Oticon Acto behind-the-ear aid with an open dome. The modified user guide had a lower reading grade level (4.2 versus 10.5), used a larger font size, included more graphics, and had less technical information. Eighty-nine adults ages 55 years and over were included in the study; none had experience with hearing aid use or management. Participants were randomly assigned either the modified guide (n = 47) or the original guide (n = 42). All participants were administered the Hearing Aid Management test, designed for this study, which assessed their ability to perform seven management tasks (e.g., change battery) with their assigned user guide.
  
  
  RESULTS
  The regression analysis indicated that the type of user guide was significantly associated with performance on the Hearing Aid Management test, adjusting for 11 potential covariates. In addition, participants assigned the modified guide required significantly fewer prompts to perform tasks and were significantly more likely to perform four of the seven tasks without the need for prompts. The median time taken by those assigned the modified guide was also significantly shorter for three of the tasks. Other variables associated with performance on the Hearing Aid Management test were health literacy level, finger dexterity, and age.
  
  
  CONCLUSIONS
  Findings indicate that the need to design hearing aid user guides in line with best practice principles of health literacy as a means of facilitating improved hearing aid management in older adults.
authors.affiliation: 1The University of Queensland, Brisbane, Queensland, Australia; and 2The HEARing Cooperative Research Centre, Melbourne, Victoria, Australia.
authors.forename: Andrea
authors.initials: A
authors.lastname: Caposecco
authors.forename: Louise
authors.initials: L
authors.lastname: Hickson
authors.forename: Carly
authors.initials: C
authors.lastname: Meyer
authors.forename: Asaduzzaman
authors.initials: A
authors.lastname: Khan
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001294:Attitude to Health; D012048:Correction of Hearing Impairment / Q000379:methods*; D005260:Female; D005385:Fingers; D057220:Health Literacy; D006310:Hearing Aids; D034381:Hearing Loss / Q000534:rehabilitation*; D006801:Humans; D008297:Male; D008370:Manuals as Topic; D008875:Middle Aged; D009048:Motor Skills; D010353:Patient Education as Topic / Q000379:methods*; D012044:Regression Analysis; D020377:Self Efficacy