Field test of the Rapid Assessment of Hearing Loss survey protocol in Ntcheu district, Malawi

被引:5
作者
Bright, Tess [1 ]
Mulwafu, Wakisa [2 ]
Phiri, Mwanaisha [3 ]
Jiang, Fan [4 ]
Swanepoel, De Wet [5 ]
Kuper, Hannah [1 ]
Mactaggart, Islay [1 ]
Yip, Jennifer L. Y. [1 ]
Polack, Sarah [1 ]
机构
[1] London Sch Hyg & Trop Med, Int Ctr Evidence Disabil, London, England
[2] Coll Med, Dept Surg, Blantyre, Malawi
[3] Queen Elizabeth Cent Hosp, Audiol Dept, Blantyre, Malawi
[4] Shandong Univ, Sch Publ Hlth, Jinan, Peoples R China
[5] Univ Pretoria, Dept Speech Language Pathol & Audiol, Pretoria, South Africa
关键词
Demographics; epidemiology; adult or general hearing screening; aging; hearing aids; IMPAIRMENT; PREVALENCE; DISABILITY; VALIDITY; DISEASE;
D O I
10.1080/14992027.2020.1739764
中图分类号
R36 [病理学]; R76 [耳鼻咽喉科学];
学科分类号
100104 ; 100213 ;
摘要
Objective: (1) To test the feasibility of the Rapid Assessment of Hearing Loss (RAHL) survey protocol in Malawi (Ntcheu); (2) To estimate the prevalence and probable causes of hearing loss (adults 50+). Design: Cross-sectional population-based survey. Study sample: Clusters (n = 38) were selected using probability-proportionate-to-size-sampling. Within each cluster, 30 people aged 50+ were selected using compact-segment-sampling. All participants completed smartphone-based audiometry (hearTest). Prevalence was estimated using WHO definitions (PTA of thresholds 0.5, 1, 2, 4 kHz in the better ear of >25 dB HL (any) and >40 dB HL (>= moderate)). Otoscopy and questionnaire were used to assess probable causes. Participants with hearing loss and/or ear disease were asked about care-seeking and barriers. Results: Four teams completed the survey in 24 days. 1080 of 1153 (93.7%) participants were examined. The median time to complete the protocol was 24 min/participant. Prevalence of hearing loss was 35.9% (95% CI = 31.6-40.2) (any level); and 10.0% (95% CI = 7.9-12.5) (>= moderate). The majority was classified as probable sensorineural. Nearly one third of people (30.9%) needed diagnostic audiology services and possible hearing aid fitting. Hearing aid coverage was Conclusion: The RAHL is simple, fast and provides information about the magnitude and probable causes of hearing loss to plan services.
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页码:574 / 582
页数:9
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[31]  
World Health Organization, 2018, HEAR FUT