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10/09/2015  |   9:45 AM - 11:00 AM   |  Andrew Foster Auditorium

Evaluation of uHear iPhone app for Hearing Screening

Background. Developing countries have the world’s highest prevalence of hearing loss, hearing screening programmes are scarce. Mobile devices such as smartphones have the potential for audiometric testing. Objectives. To evaluate the uHear app using an Apple iPhone as a possible hearing screening tool in the developing world. To also determine the accuracy of certain hearing thresholds that could prove useful in early detection of hearing loss for high-risk populations in resource-poor communities. Methods. Participants were recruited from the Otolaryngology Clinic, Groote Schuur Hospital, Cape Town, South Africa, and completed a uHear test application in three settings – waiting room (WR), quiet room (QR) and soundproof room (SR). Thresholds were compared with formal audiograms. Results. Twenty-five patients were tested (50 ears). The uHear test detected moderate or worse hearing loss (pure-tone average (PTA) >40 dB) accurately with a sensitivity of 100% in all three environments. Specificity was 88% (SR), 73% (QR) and 68% (WR). It was highly accurate in detecting high-frequency hearing loss (2 000, 4 000, 6 000 Hz) in the QR and SR with ‘good’ and ‘very good’ kappa values, showing statistical significance (p<0.05). It was moderately accurate in low-frequency hearing loss (250, 500, 1 000 Hz) in the SR, and poor in the QR and WR. Conclusion. Using the iPhone, the uHear test app is a feasible screening test to rule out significant hearing loss (PTA >40 dB). It is highly sensitive for detecting threshold changes at high frequencies, making it reasonably well suited to detect presbycusis and ototoxic hearing loss related to HIV, tuberculosis therapy and chemotherapy. Portability and ease of use make it appropriate to use in developing world communities that lack screening programmes.

• Validating a tool for Developing world hearing screening
• Identifying a new technology app that can improve service delivery

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Shazia Peer (POC,Primary Presenter,Author), Division of Otolaryngology, University of Cape Town, shaziapeer@gmail.com;
Paediatric Otolaryngologist, Head - Division of Otolaryngology, Red Cross Children's Hospital, Cape Town