Evidence map›Paper›PMID 36805867›Full record

ArticleThe Lancet. Global health2023

Patient-level and system-level determinants of stroke fatality across 16 large hospitals in Ghana and Nigeria: a prospective cohort study.

Fred S Sarfo, Onoja M Akpa, Bruce Ovbiagele, Albert Akpalu, Kolawole Wahab, Reginald Obiako, Morenikeji Komolafe, Lukman Owolabi, Godwin Ogbole, Adekunle Fakunle and 50 more

Abstract readMulticenter Study
In one paragraph

Article in The Lancet. Global health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
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  4. Review
  5. Article
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  8. Revisiting Africa's Stroke Obstacles and Services (SOS).Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
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  14. A scoping review of stroke registers in Sub-Saharan Africa.International journal of stroke : official journal of the International Stroke Society · 2025
    Article
  15. Stroke characteristics and outcomes in urban Tanzania: Data from the Prospective Lake Zone Stroke Registry.International journal of stroke : official journal of the International Stroke Society · 2024
    Article
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  20. Prevalence and predictors of low folate levels among stroke survivors in a country without mandatory folate food fortification: Analysis of a Ghanaian sample.Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2023
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

60 authors.

Fred S SarfoDepartment of Medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
Onoja M AkpaDepartment of Epidemiology and Medical Statistics, College of Medicine, University of Ibadan, Ibadan, Nigeria; Preventive Cardiology Research Unit, Institute of Cardiovascular Diseases, College of Medicine, University of Ibadan, Ibadan, Nigeria.
Bruce OvbiageleWeill Institute for Neurosciences, School of Medicine, University of California San Francisco, San Francisco, CA, USA.
Albert AkpaluDepartment of Medicine, University of Ghana Medical School, Accra, Ghana.
Kolawole WahabDepartment of Medicine, University of Ilorin Teaching Hospital, Ilorin, Nigeria.
Reginald ObiakoDepartment of Medicine, Ahmadu Bello University, Zaria, Nigeria.
Morenikeji KomolafeDepartment of Medicine, Obafemi Awolowo University Teaching Hospital, Ile-Ife, Nigeria.
Lukman OwolabiDepartment of Medicine, Aminu Kano Teaching Hospital, Kano, Nigeria.
Godwin OgboleDepartment of Radiology, University of Ibadan, Ibadan, Nigeria.
Adekunle FakunleDepartment of Medicine, University of Ibadan, Ibadan, Nigeria; Department of Public Health, Osun State University, Osogbo, Nigeria.
Akinkunmi Paul OkekunleDepartment of Epidemiology and Medical Statistics, College of Medicine, University of Ibadan, Ibadan, Nigeria; Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, South Korea.
Osahon J AsowataDepartment of Epidemiology and Medical Statistics, College of Medicine, University of Ibadan, Ibadan, Nigeria.
Benedict Calys-TagoeDepartment of Medicine, University of Ghana Medical School, Accra, Ghana.
Ezinne O UvereDepartment of Medicine, University of Ibadan, Ibadan, Nigeria.
Taofeek SanniFederal Teaching Hospital, Ido-Ekiti Ado-Ekiti, Nigeria.
Samuel OlowookereDepartment of Medicine, Obafemi Awolowo University Teaching Hospital, Ile-Ife, Nigeria.
Philip IbinaiyeDepartment of Medicine, Ahmadu Bello University, Zaria, Nigeria.
Joshua O AkinyemiDepartment of Epidemiology and Medical Statistics, College of Medicine, University of Ibadan, Ibadan, Nigeria.
Oyedunni ArulogunCollege of Medicine, University of Ibadan, Ibadan, Nigeria.
Carolyn JenkinsMedical University of South Carolina, Charleston, SC, USA.
Daniel T LacklandMedical University of South Carolina, Charleston, SC, USA.
Hemant K TiwariUniversity of Alabama at Birmingham, Birmingham, AL, USA.
Suleiman Y IsahDepartment of Medicine, Aminu Kano Teaching Hospital, Kano, Nigeria.
Sani A AbubakarDepartment of Medicine, Ahmadu Bello University, Zaria, Nigeria.
Adebayo OladimejiUniversity College Hospital, Ibadan, Nigeria.
Philip AdebayoAga Khan University, Dar es Salaam, Tanzania.
Josephine AkpaluDepartment of Medicine, University of Ghana Medical School, Accra, Ghana.
Ugochukwu OnyeonoroJos University Teaching Hospital, Jos, Nigeria.
James A OgunmodedeDepartment of Medicine, University of Ilorin Teaching Hospital, Ilorin, Nigeria.
Cynthia AkisanyaFederal Medical Centre, Abeokuta, Nigeria.
Yaw MensahKorle Bu Teaching Hospital, Accra, Ghana.
Olalekan I OyinloyeDepartment of Medicine, University of Ilorin Teaching Hospital, Ilorin, Nigeria.
Lambert AppiahKomfo Anokye Teaching Hospital, Kumasi, Ghana.
Atinuke M AgunloyeDepartment of Radiology, University of Ibadan, Ibadan, Nigeria; College of Medicine, University of Ibadan, Ibadan, Nigeria.
Godwin O OsaigbovoJos University Teaching Hospital, Jos, Nigeria.
Abiodun M AdeoyeDepartment of Medicine, University of Ibadan, Ibadan, Nigeria; University College Hospital, Ibadan, Nigeria.
Osimhiarherhuo Ohifemen AdeleyeFederal Medical Centre, Abeokuta, Nigeria.
Ruth Y LaryeaDepartment of Medicine, University of Ghana Medical School, Accra, Ghana.
Taiwo OlunugaFederal Medical Centre, Abeokuta, Nigeria.
Okechukwu S OgahDepartment of Medicine, University of Ibadan, Ibadan, Nigeria.
Wisdom OguikeDepartment of Medicine, Ahmadu Bello University, Zaria, Nigeria.
Mayowa OgunronbiFederal Medical Centre, Abeokuta, Nigeria.
Wasiu AdeniyiFederal Medical Centre, Abeokuta, Nigeria.
Obiabo Y OlugboDelta State University/Delta State University Teaching Hospital, Oghara, Nigeria.
Abiodun H BelloDepartment of Medicine, University of Ilorin Teaching Hospital, Ilorin, Nigeria.
Luqman OgunjimiDepartment of Pharmacology and Therapeutics, Olabisi Onabanjo University, Abeokuta, Nigeria.
Samuel DialaDepartment of Medicine, University of Ibadan, Ibadan, Nigeria.
Hamisu A DambattaDepartment of Medicine, Aminu Kano Teaching Hospital, Kano, Nigeria.
Arti SinghDepartment of Medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
Sheila AdamuKomfo Anokye Teaching Hospital, Kumasi, Ghana.
Vida ObeseKomfo Anokye Teaching Hospital, Kumasi, Ghana.
Nathaniel AduseiDepartment of Medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
Dorcas OwusuDepartment of Medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
Michael AmpofoKomfo Anokye Teaching Hospital, Kumasi, Ghana.
Raelle TaggeDepartment of Epidemiology and Medical Statistics, College of Medicine, University of Ibadan, Ibadan, Nigeria.
Bimbo FawaleDepartment of Medicine, Obafemi Awolowo University Teaching Hospital, Ile-Ife, Nigeria.
Joseph YariaDepartment of Medicine, University of Ibadan, Ibadan, Nigeria.
Rufus O AkinyemiUniversity College Hospital, Ibadan, Nigeria; Federal Medical Centre, Abeokuta, Nigeria; Center for Genomic and Precision Medicine, College of Medicine, University of Ibadan, Ibadan, Nigeria.
Mayowa O OwolabiDepartment of Medicine, University of Ibadan, Ibadan, Nigeria; University College Hospital, Ibadan, Nigeria; Center for Genomic and Precision Medicine, College of Medicine, University of Ibadan, Ibadan, Nigeria; Lebanese American University, Beirut, Lebanon; Blossom Center for Neurorehabilitation, Ibadan, Nigeria. Electronic address: mayowaowolabi@yahoo.com.
SIREN

Funding

H3Africa Administrative Coordinating Centre: Enabling and Supporting Genomics and Health Research Capacity Building in AfricaU24HG009780 · NHGRI · UNIVERSITY OF CAPE TOWN · PI SKELTON, MICHELLE · 2017 to 2022
$4.8M
Stroke Investigative Research & Educational Network (SIREN)U54HG007479 · NHGRI · COLLEGE OF MEDICINE, UNIVERSITY OF IBADAN · PI OVBIAGELE, BRUCE, OWOLABI, MAYOWA OJO · 2013 to 2017
$4.2M
CNV And Stroke (CaNVAS)R01NS114045 · NINDS · UNIVERSITY OF MARYLAND BALTIMORE · PI COLE, JOHN W. · 2020 to 2024
$2.6M
African Rigorous Innovative Stroke Epidemiological Surveillance (ARISES)R01NS115944 · NINDS · COLLEGE OF MEDICINE, UNIVERSITY OF IBADAN · PI OVBIAGELE, BRUCE, OWOLABI, MAYOWA OJO · 2020 to 2025
$2.2M
Systematic Investigation of Blacks with Stroke - Genomics (SIBS-Genomics) StudyR01NS107900 · NINDS · COLLEGE OF MEDICINE, UNIVERSITY OF IBADAN · PI OVBIAGELE, BRUCE, OWOLABI, MAYOWA OJO · 2018 to 2021
$1.8M
Training Africans to Lead and Execute Neurological Trials & Studies (TALENTS)D43TW012030 · FIC · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI OVBIAGELE, BRUCE · 2021 to 2025
$1.2M
African Neurobiobank for Precision Stroke Medicine - (ELSI) ProjectU01HG010273 · NHGRI · COLLEGE OF MEDICINE, UNIVERSITY OF IBADAN · PI AKINYEMI, RUFUS OLUSOLA, ARULOGUN, OYEDUNNI SOLA · 2018 to 2022
$512k
Sub-Saharan Africa Conference on Stroke (SSACS) ConferenceR13NS115395 · NINDS · NORTHERN CALIFORNIA INSTITUTE/RES/EDU · PI OVBIAGELE, BRUCE · 2020 to 2020
$50k
FIC NIH HHS D43 TW012030NHGRI NIH HHS U01 HG010273NHGRI NIH HHS U24 HG009780NHGRI NIH HHS U54 HG007479NINDS NIH HHS R01 NS107900NINDS NIH HHS R01 NS114045NINDS NIH HHS R01 NS115944NINDS NIH HHS R13 NS115395
6 · The paper itself

Abstract

backgroundEvery minute, six indigenous Africans develop new strokes. Patient-level and system-level contributors to early stroke fatality in this region are yet to be delineated. We aimed to identify and quantify the contributions of patient-level and system-level determinants of inpatient stroke fatality across 16 hospitals in Ghana and Nigeria.

methodsThe Stroke Investigative Research and Educational Network (SIREN) is a multicentre study involving 16 sites in Ghana and Nigeria. Cases include adults (aged ≥18 years) with clinical and radiological evidence of an acute stroke. Data on stroke services and resources available at each study site were collected and analysed as system-level factors. A host of demographic and clinical variables of cases were analysed as patient-level factors. A mixed effect log-binomial model including both patient-level and system-level covariates was fitted. Results are presented as adjusted risk ratios (aRRs) with respective 95% CIs.

findingsOverall, 814 (21·8%) of the 3739 patients admitted with stroke died as inpatients: 476 (18·1%) of 2635 with ischaemic stroke and 338 (30·6%) of 1104 with intracerebral haemorrhage. The variability in the odds of stroke fatality that could be attributed to the system-level factors across study sites assessed using model intracluster correlation coefficient was substantial at 7·3% (above a 5% threshold). Stroke units were available at only five of 16 centres. The aRRs of six patient-level factors associated with stroke fatality were: low vegetable consumption, 1·19 (95% CI 1·07-1·33); systolic blood pressure, 1·02 (1·01-1·04) for each 10 mm Hg rise; stroke lesion volume more than 30 cm

interpretationStudies are needed to assess the efficacy of interventions targeting patient-level factors such as aspiration pneumonia in reducing acute stroke fatality in this region. Policy directives to improve stroke unit access are warranted.

fundingUS National Institutes of Health. TRANSLATIONS: For the Twi, Yoruba and Hausa translations of the abstract see Supplementary Materials section.

Indexed as

Brain IschemiaPneumonia, AspirationStrokeAdolescentAdultGhanaHospitalsHumansNigeriaProspective Studies

Identifiers

PMID36805867
PMCPMC10080070

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