Spatiotemporal trends in dementia hospitalisation and mortality rates between 2010-2019: the Portuguese case

Moniz, M.; Alvez, Joana; Leite, Andreia

Publicação

Spatiotemporal trends in dementia hospitalisation and mortality rates between 2010-2019: the Portuguese case

2025-09Documento de conferência

datacite.subject.fos	Ciências Médicas
datacite.subject.sdg	03:Saúde de Qualidade
dc.contributor.author	Moniz, M.
dc.contributor.author	Alvez, Joana
dc.contributor.author	Leite, Andreia
dc.date.accessioned	2026-03-03T17:23:12Z
dc.date.available	2026-03-03T17:23:12Z
dc.date.issued	2025-09
dc.description	Abstract publicado em: Gac Sanit. 2025;39(Suppl. 2):777. doi: 10.1016/S0213-9111(25)00886-6
dc.description.abstract	Background/Objectives: Dementia affects over 55 million people worldwide and is a leading cause of death and disability, with cases expected to rise due to ageing. In Portugal, dementia prevalence is projected to reach 2.5% by 2040. Dementia increases hospitalisation risk, being the most common neurodegenerative disease-related hospitalisation in Portugal (43.4%). Despite previous studies, there is a lack of detailed spatial analysis on dementia trends in Portugal. Thus, we aimed to analyse spatiotemporal trends of dementia at the municipal level, focusing on hospitalisation and mortality. Methods: This ecological study analysed dementia hospitalisation and mortality rates in Portugal from 2010 to 2019 among individuals aged 55 and older. Hospitalisation data was retrieved from the Portuguese public hospitals administrative data (Base de Dados de Morbilidade Hospitalar) (2010–2018). Statistics Portugal provided mortality. Dementia cases were identified using ICD-9 and ICD-10. Crude rates were obtained using population data from Statistics Portugal, overall and stratified by region, municipality and year and then standardised by age and sex. We used a spatiotemporal clustering analysis with SaTScan to identify high-risk mortality and hospitalisation municipalities. Results: We ascertained 271,197 episodes of dementia-related hospitalisation between 2010 and 2018. The highest dementia-related hospitalisation rate per 10,000 habitants was observed in 2016 in Vila de Rei [297.48, 95% confidence interval (95%CI): 222.17;390.11]. When standardised by age and sex, Mesão Frio presented the highest rate 217.2 (95%CI: 145.9;314.2) in the same year. Four spatiotemporal clusters were found, where the number of dementia-related hospitalisations were significatively higher than expected. The clusters were mainly in the North, all between 2014 and 2016. Mortality wise, there was 52,267 dementia-related deaths between 2010 and 2019. At the municipality level, the highest mortality rate was in 2015 in Monforte, both crude [553.30 (95%CI: 429.7;701.4) per 10,000] and standardised [581.4 (95%CI: 443.2;752.3)]. We identified seven spatiotemporal clusters, mainly in the North and Azores, between 2015 and 2019. Conclusions/Recommendations: We identified geographic disparities in hospitalisation and mortality rates, with high-risk clusters found mainly in the North. The presence of multiple high-risk clusters suggests underlying local factors influencing dementia-related outcomes, emphasising the importance of resource allocation to mitigate dementia’s impact in high-risk municipalities.	eng
dc.description.sponsorship	Spatiotemporal trends in dementia hospitalisations and mortality between 2010-2019: the Portuguese case This work was supported by the Foundation for Science and Technology (FCT) under SINDIA study (2022.04684.PTDC).
dc.identifier.uri	http://hdl.handle.net/10400.18/11063
dc.language.iso	eng
dc.peerreviewed	yes
dc.relation.hasversion	https://gacetasanitaria.org/en-283-spatiotemporal-trends-in-articulo-S0213911125008866
dc.rights.uri	N/A
dc.subject	Dementia Hospitalization
dc.subject	Determinantes da Saúde e da Doença
dc.subject	Demência
dc.subject	Distribuição Geográfica
dc.subject	Portugal
dc.title	Spatiotemporal trends in dementia hospitalisation and mortality rates between 2010-2019: the Portuguese case	eng
dc.type	conference object
dspace.entity.type	Publication
oaire.citation.conferenceDate	2025-09
oaire.citation.conferencePlace	Las Palmas, Gran Canaria, Spain
oaire.citation.title	XX Congresso da Associação Portuguesa de Epidemiologia (APE)/XLIII Reunión anual de la Sociedad Española de Epidemiología (SEE), 2-5 september 2025
oaire.version	http://purl.org/coar/version/c_b1a7d7d4d402bcce