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  • Title: Ethnic differences in acute hospitalisations for otitis media and elective hospitalisations for ventilation tubes in New Zealand children aged 0-14 years.
    Author: McCallum J, Craig L, Whittaker I, Baxter J.
    Journal: N Z Med J; 2015 Jun 12; 128(1416):10-20. PubMed ID: 26117671.
    Abstract:
    AIMS: This paper describes ethnic differences in acute hospitalisations for otitis media (OM) and elective hospitalisations for ventilation tube insertion in New Zealand children aged 0-14 years. Ethnic differences in first attendances at Ear Nose and Throat (ENT) outpatient clinics are also described. METHOD: The analysis included all hospital admissions of children aged 0-14 years during 2002-2008 which met the following criteria: Acute admissions with an ICD-10-AM primary diagnosis code of otitis media; and elective admissions with a primary procedure code of ventilation tube insertion. First attendances at ENT outpatient clinics during 2007-2008 were also reviewed. Explanatory variables included ethnicity, gender, age, and NZ Deprivation Index decile. RESULTS: Among 0-4 year olds, Māori and Pacific children were more likely to be admitted acutely for otitis media than European children. In contrast, both Māori and Pacific children had lower rates of elective admissions for ventilation tube insertion, with ethnic differences being most marked for children from the most deprived areas. Māori and Pacific children aged 5-14 years also had higher acute otitis media admission rates than European children. In contrast to their younger counterparts however, they also had higher rates of ventilation tube insertion. Exploration of ENT outpatient data for children 0-4 years revealed similar first appointment rates for European and Māori children, but lower rates for Pacific and Asian children. For the 5-14 age group, first appointment rates were higher for Māori and Pacific children than for European children. However, Māori and Pacific children in both age groups had higher rates of non-attendance at their first ENT appointments than European children. CONCLUSION: This study highlights ethnic differences in access to ventilation tubes amongst New Zealand's 0-4 year olds, with the greatest inequalities being seen for Māori, Pacific and Asian children living in the most deprived areas. For Māori and Pacific children, such differences cannot be attributed to lower rates of AOM or OME compared to European children. The fact that similar patterns are not seen for children aged 5-14 years potentially suggests that routine Well Child hearing screening may be playing a role in identifying unmet need in this older age group. Such disparities also suggest that factors over and above OM prevalence may be influencing access to ventilation tubes. Further research is required to determine why Māori and Pacific children (0-4 years) have similar/lower ENT appointment rates than European children, despite a higher burden of middle ear disease, as well as higher non-attendance rates at outpatient clinics. Given the importance of early detection and treatment of OM for children's ongoing well-being and education, a greater understanding of the reasons for these inequalities is urgently required.
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