Hearing and ear status of Pacific children aged 11 years living in New Zealand: the Pacific Islands families hearing study

Feasibility of a hearing screening programme using DPOAEs in 3-year-old children in South Auckland

OBJECTIVES

In New Zealand (NZ), permanent hearing loss is associated with higher levels of socioeconomic deprivation, and is more prevalent amongst Māori and Pacific than NZ European children. Many of these hearing losses are detected through newborn hearing screening, however there is a need to screen children again later, to look for childhood hearing losses that are either late-onset, progressive, or acquired. This study evaluated the feasibility of implementing an objective screening protocol that includes otoscopy, distortion product otoacoustic emission screening (DPOAEs), and tympanometry. It also evaluated the feasibility of using Early Learning Centres (ELCs) to contact families, recruit, and test 3-year-old children from an area of high socioeconomic deprivation in Auckland, New Zealand.

METHODS

Sixty-one 3-year-old children were recruited from ELCs within the Counties Manukau District Health Board (CMDHB) region which services the geographical area of South Auckland. The first part of the screening protocol consisted of otoscopy, DPOAEs, and tympanometry. Children identified with hearing loss and/or middle ear problems were either referred directly to Otolaryngology/Audiology at the local hospital or invited back for a re-screen 4-8 weeks later. Children who were referred from the screening were followed up to track and document their subsequent clinical pathway through the public health system.

RESULTS

Mean overall time for the screening protocol was 4.1 minutes. The combination of otoscopy, DPOAEs, and tympanometry was well accepted by the 3-year-old children. DPOAE amplitude and signal-to-noise ratio results significantly differentiated between different tympanometry results, providing support for this combination of measures to accurately screen for hearing loss and/or middle ear disease. Thirty-eight of the 61 children (62%) passed the screening protocol. Of the remaining 23 children, five were referred to the hospital after not passing the screening, but following more in-depth audiological testing, were discharged with normal hearing. Six children referred to the hospital were diagnosed with varying degrees of conductive hearing loss, and two of the six received grommet insertion surgery. The remaining 12 children who were referred to the hospital were lost to follow-up, highlighting challenges for the families to successfully navigate the current public health system.

CONCLUSION

This study demonstrates that identifying hearing loss and ear disease in 3-year-old children in the pre-school setting is feasible. A number of barriers were identified in the current health system that contribute to a large proportion of children referred with suspected hearing loss and ear disease being unsuccessful in accessing Otolaryngology/Audiology clinical care through the local hospital.

Communication research in the context of te whare tapa whā model of health

Purpose: Te whare tapa whā represents a Māori view of health and wellness in four dimensions: taha wairua (spiritual health), taha hinengaro (mental health), taha tinana (physical health) and taha whānau (family health). This model of health focuses on indigenous Māori in Aotearoa/New Zealand but has relevance for all people. Speech-language pathologists, including those not familiar with this model, recognise that all four dimensions are needed to support health and wellbeing. Taha wairua includes the importance of culture and heritage to personal identity, an area that speech-language pathology (SLP) recognises as key to clinical competency. Taha hinengaro includes the need to express thoughts and feelings, another area particularly salient to SLP. The other two dimensions taha tinana (physical health) and taha whānau (family health) are arguably more familiar in the day-to-day work of speech-language pathologists.Method: Two broad strands of research are examined within this model of health exploring the challenges faced by vulnerable populations namely: (1) two community based groups (a Choir and a Gavel Club) for people with acquired neurological conditions such as stroke and Parkinson's disease, and (2) diagnosis and management of hearing loss and auditory processing disorder.Result: Community based groups, explored through the CeleBRation Choir and the Gavel Club, highlighted the application of all aspects of te whare tapa whā to the experiences of people with neurological conditions participating in these community therapies. In the area of hearing loss and auditory processing disorder, gaps across all four dimensions of taha wairua, taha hinengaro, taha tinana and taha whānau were identified in the available literature and in examination of clinical provision for participants.Conclusion: Te whare tapa whā provides a framework to consider all the elements that contribute to people living well while experiencing communication challenges within their whānau (extended family). This approach relies on strong partnerships between clinicians, extended family, researchers, communities, organisations and other professionals. Clinicians and researchers are encouraged to consider how their beliefs, practices and impact could improve through consideration of Indigenous health models such as te whare tapa whā.