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Stroke case-fatality in sub-saharan Africa: systematic review and meta-analysis

Abstract : Background: The burden of stroke is high in sub-Saharan Africa; however, few data are available on long-term mortality. Objective: To estimate over one-month stroke case fatality in sub-Saharan Africa. Methods: A systematic review and meta-analysis were performed according to meta-analysis of observational studies in epidemiology and Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines (PROSPERO protocol: CRD42020192439), on five electronic databases (PubMed, Science direct, AJOL, EMBASE, and Web of Sciences). We searched all studies on stroke case fatality over one month in sub-Saharan Africa published between 1st January 2000 and 31st December 2019. Results:We included 91 studies with a total of 34,362 stroke cases. The one-month pooled stroke case-fatality rate was 24.1% [95% CI: 21.5–27.0] and 33.2% [95% CI: 23.6–44.5] at one year. At three and five years, the case-fatality rates were respectively 40.1% [95% CI: 20.8–63.0] and 39.4% [95% CI: 14.3–71.5] with high heterogeneity. Hemorrhagic stroke was associated with a higher risk of mortality at one month, but ischemic stroke increased the risk of mortality over six months. Diabetes was associated with poor prognosis at 6 and 12 months with odds ratios of 1.64 [95% CI: 1.22–2.20] and 1.85 [1.25–2.75], respectively. Conclusion: The stroke case fatality over one month was very high, compared to case fatalities reported in Western countries and can be explained by a weak healthcare systems and vascular risk factors.
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https://hal-unilim.archives-ouvertes.fr/hal-03132363
Contributeur : Elisabeth Grelier <>
Soumis le : vendredi 5 février 2021 - 08:50:26
Dernière modification le : samedi 6 février 2021 - 03:11:56

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Thierry Adoukonou, Pervenche Mefo Fotso, Oyéné Kossi, Mendinatou Agbetou, Gwladys Nadia Gbaguidi, et al.. Stroke case-fatality in sub-saharan Africa: systematic review and meta-analysis. International Journal of Stroke, Wiley, 2021, pp.174749302199094. ⟨10.1177/1747493021990945⟩. ⟨hal-03132363⟩

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