Comprehensive measurement of the prevalence of dementia in low- and middle-income countries: STRiDE methodology and its application in Indonesia and South Africa

Nicolas Farina, Roxanne Jacobs, Yuda Turana, Fasihah Irfani Fitri, Marguerite Schneider, Imelda Theresia, Sumaiyah Docrat, Tara Puspitarini Sani, Lydia Augustina, Emiliano Albanese, Adelina Comas-Herrera, Petra Du Toit, Cleusa P. Ferri, Ishtar Govia, Aliaa Ibnidris, Martin Knapp and Sube Banerjee

LSE Research Online Documents on Economics from London School of Economics and Political Science, LSE Library

Abstract: Background A core element of the Strengthening Responses to Dementia in Developing Countries (STRiDE) programme was to generate novel data on the prevalence, cost and impact of dementia in low- and middle-income countries, to build better health policy. Indonesia and South Africa are two middle-income countries in need of such data. Aims To present the STRiDE methodology and generate estimates of dementia prevalence in Indonesia and South Africa. Method We conducted community-based, single-phase, cross-sectional studies in Indonesia and South Africa, randomly sampling participants aged 65 years or older in each country. Dementia prevalence rates for each country were generated by using the 10/66 short schedule and applying its diagnostic algorithm. Weighted estimates were calculated with national sociodemographic data. Results Data were collected between September and December 2021 in 2110 people in Indonesia and 408 people in South Africa. The adjusted weighted dementia prevalence was 27.9% (95% CI 25.2-28.9) in Indonesia and 12.5% (95% CI 9.5-16.0) in South Africa. Our results indicate that there could be >4.2 million people in Indonesia and >450 000 people in South Africa who have dementia. Only five participants (0.2%) in Indonesia and two (0.5%) in South Africa had been previously diagnosed with dementia. Conclusions Despite prevalence estimates being high, formal diagnosis rates of dementia were very low across both countries (

Keywords: dementia; epidemiology; low- and middle-income countries; outcome studies; statistical methodology (search for similar items in EconPapers)
JEL-codes: C1 (search for similar items in EconPapers)
Pages: 7 pages
Date: 2023-06-06
New Economics Papers: this item is included in nep-sea
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Published in BJPsych Open, 6, June, 2023, 9(4). ISSN: 2056-4724

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