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Study links lack of running water to prevalence of ear infections in children in rural Alaska

Children in the Bering Strait region living in households without running water are much more likely to contract middle ear infections, recently published study confirmed.

Data from screenings of more than 1,600 schoolchildren in various communities in this part of western Alaska revealed that the lack of running water – a chronic problem in rural Alaska – corresponded to a 53% higher middle ear infections, according to study. Young children, ages 3 to 6, were most at risk, according to the study.

The study, published in the journal Ear and Hearing, is part of a program supported by Norton Sound Health Corp. to combat high rates of ear infections and the hearing loss that can result. Ultimately, the research should help health care providers improve hearing screenings for area children, said co-author Samantha Kleindienst Robler, audiologist at Norton Sound Health Corp. who is also an assistant professor at the University of Arkansas for medical sciences.

“Hearing screenings are an important part of the bigger picture to ensure children are ready to learn in the classroom and able to reach their full potential,” she said by email.

Although the study found a strong link between lack of running water and ear infections, this link did not extend to hearing loss in children. The study also did not find a link between other known risk factors, overcrowded housing and indoor smoke.

However, this study was only a first step in a process to better understand environmental factors in children’s ear disease, Kleindienst Robler said. It used data from screenings of school-age children conducted over two school years, 2017-18 and 2018-19, in which more than 17% had middle ear disease and more than 11% had middle ear disease. signs of hearing loss.

Ear infections don’t always cause hearing loss, Kleindienst Robler said, but the results can also be skewed by some limitations of the methods used in the study. The measurement used in hearing screenings, an otoacoustic emission or OAE, is an important tool, she said, “but unfortunately is not the most sensitive for detecting the mild hearing loss that is most commonly found. with middle ear infections”.

Follow-up studies are underway to better understand the problems and their environmental causes. An ongoing study is looking at environmental and nutritional factors, Kleindienst Robler said. “We hope that this new study, specifically designed to measure these factors, will be able to more accurately assess the impact of environmental risk factors on ear and hearing health,” he said. she declared.

A related study sponsored by Norton Sound Health Corp. and conducted largely by the same group of researchers showed that telemedicine could provide faster treatment for children with hearing problems. The study, published in July in The Lancet, looked at outcomes for children who were screened through telemedicine compared to those who were screened through standard primary care. About two-thirds of children who had ear problems detected through telemedicine got follow-up care, compared with only one-third of children whose problems were detected through standard care, according to the study. Of those who received follow-up care, the telemedicine group received that service for an average of 41 days, compared to about three months for the other group, according to the study.

Doctors and scientists have long been linked poor water and sanitation service in rural Alaska and elsewhere in remote Arctic regions for health problems, with infants and young children particularly affected. This is particularly the case for respiratory diseases such as respiratory syncytial virus, or RSV, a chronic problem in rural Alaska. More recently, the link was confirmed for COVID-19 in rural Alaska.

And the high prevalence of ear infections and associated hearing loss among Alaska Native children has been documented for decades, at least. from the 1960swhen it was found to be correlated with higher rates of respiratory disease.

Norton Sound’s research has provided lessons in finding solutions to this long-standing problem.

One recommendation is to ensure that hearing screenings include measurements for middle ear disease, something that is sometimes omitted, Kleindienst Robler said. “We have discovered, through work in the Norton Sound area, that it is extremely important to include screening measures for both hearing loss and middle ear disease in rural areas where the rates of ear infections are high. This is to ensure that no child who needs hearing and hearing care is left behind,” she said.

Other lessons relate to the value of telemedicine and community participation in health research.

The research initiative is part of a “grassroots” project that is guided by an advisory council and a tribal council, said Kleindienst Robler, who has lived and worked in the area for more than a decade. “In all of our research projects, we have worked alongside community members and stakeholders,” she said.

Originally published by the Alaska Beaconan independent, nonpartisan news agency that covers the Alaska state government.



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