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The prevalence of neurological disorders in older people in Tanzania

Lookup NU author(s): Dr Felicity DewhurstORCiD, Dr Matthew Dewhurst, Professor Richard Walker

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Abstract

Objectives There are few data on neurological disorders prevalence from low- and middle-income countries, particularly sub-Saharan Africa (SSA) and none specific to the African elderly. We aimed to determined the prevalence of neurological disorders in those aged 70years and over in a rural African community. Materials and methods This study was a cross-sectional two-phased community epidemiological survey set in the rural Hai district of Tanzania. Screening was performed with a validated screening questionnaire with high sensitivity and specificity. Positive responders to screening underwent full neurological history and examination to confirm or refute the presence of neurological disorders and to classify the disorder using the International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10). Results Of 2232 participants, there were 384 neurological diagnoses amongst 349 people. The age-adjusted prevalence of people with neurological diagnoses was 154.1 per 1000 (95% CI 139.2169.1). The age-adjusted prevalence per 1000 of the most common neurological disorders were tremor (48.2), headache (41.8), stroke (23.0), peripheral polyneuropathy (18.6), upper limb mononeuropathy (6.5) and parkinsonism (5.9). Conclusions This is the first published community-based neurological disorders prevalence study specifically in the elderly in SSA. It reveals a high prevalence of neurological morbidity and demonstrates the contribution neurological disorders make to the non-communicable disease epidemic. This is likely to increase as the population of low-income countries ages constituting a public health dilemma.

Publication metadata

Author(s): Dewhurst F, Dewhurst MJ, Gray WK, Aris E, Orega G, Howlett W, Warren N, Walker RW

Publication type: Article

Publication status: Published

Journal: Acta Neurologica Scandinavica

Year: 2013

Volume: 127

Issue: 3

Pages: 198-207

Print publication date: 31/07/2012

ISSN (print): 0001-6314

ISSN (electronic): 1600-0404

Publisher: Wiley-Blackwell Publishing, Inc.

URL: http://dx.doi.org/10.1111/j.1600-0404.2012.01709.x

DOI: 10.1111/j.1600-0404.2012.01709.x

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