Stroke Mortality in Kenya’s Public Tertiary Hospitals: A Prospective Facility-Based Study

Background: Despite the increasing global burden of stroke, there are limited data on stroke from Kenya to guide in decision-making. Stroke occurrence in sub-Saharan Africa has been associated with poor health outcomes. This study sought to establish the stroke incidence density and mortality in Ken...

Full description

Bibliographic Details
Main Authors: Lydia Kaduka, Erastus Muniu, Chrispine Oduor, Jane Mbui, Robai Gakunga, Judith Kwasa, Sylvanus Wabwire, Nathan Okerosi, Anne Korir, Scot Remick
Format: Article
Language:English
Published: Karger Publishers 2018-06-01
Series:Cerebrovascular Diseases Extra
Subjects:
Online Access:https://www.karger.com/Article/FullText/488205
_version_ 1818275833169575936
author Lydia Kaduka
Erastus Muniu
Chrispine Oduor
Jane Mbui
Robai Gakunga
Judith Kwasa
Sylvanus Wabwire
Nathan Okerosi
Anne Korir
Scot Remick
author_facet Lydia Kaduka
Erastus Muniu
Chrispine Oduor
Jane Mbui
Robai Gakunga
Judith Kwasa
Sylvanus Wabwire
Nathan Okerosi
Anne Korir
Scot Remick
author_sort Lydia Kaduka
collection DOAJ
description Background: Despite the increasing global burden of stroke, there are limited data on stroke from Kenya to guide in decision-making. Stroke occurrence in sub-Saharan Africa has been associated with poor health outcomes. This study sought to establish the stroke incidence density and mortality in Kenya’s leading public tertiary hospitals for purposes of informing clinical practice and policy. Methods: This is a prospective study conducted at Kenya’s leading referral hospitals, namely, Kenyatta National Hospital (KNH) and Moi Teaching and Referral Hospital (MTRH). Adult patients with confirmed cases of stroke were recruited from February 2015 to January 2016 and followed up for a minimum period of 1 year. The WHO 2006 Stroke STEPS instrument was used to collect data on incidence and mortality at days 10 and 28 and every 3 months for 24 months. The person-time of follow-up was computed from admission to death, loss to follow-up, or the end of the study. A survival regression analysis was done using the Cox proportional hazards model. Results: A total of 719 patients were recruited (KNH: n = 406 [56.5%]; MTRH: n = 313 [43.5%]). The mean age was 58.6 ± 18.7 years, and the male-to-female ratio was 1: 1.4. Ischemic stroke accounted for 56.1% of the stroke cases. The peak age for stroke was between 50 and 69 years, when 36.3% of the cases occurred. Mortality at day 10 and day 28 was 18.4 and 26.7%, respectively. The inpatient mortality rate was 21.6%. The stroke incidence density was 507 deaths per 1,000 person-years of follow-up. The mean survival time was significantly different between inpatients (13.9 months; 95% CI: 13.0–14.7) and outpatients (18.6 months; 95% CI: 17.2–19.9) (p < 0.001). A 1-year increase in age increased the hazard by 1.8%. Inpatients had a 3.9-fold increase in hazard compared to outpatients. Conclusions: Mortality due to stroke is high, with poor survival observed in the first year after stroke. The risk of death increases with increasing age and duration of hospital stay. There is need for attention to quality of care and long-term needs of stroke patients to mitigate the high mortality rates observed. Public health initiatives aimed at early screening and diagnosis should be enhanced. Further research is recommended to establish the true burden of stroke at the community level to inform appropriate mitigation measures.
first_indexed 2024-12-12T22:36:02Z
format Article
id doaj.art-e619171c0da5435a9cab951d27bc0abf
institution Directory Open Access Journal
issn 1664-5456
language English
last_indexed 2024-12-12T22:36:02Z
publishDate 2018-06-01
publisher Karger Publishers
record_format Article
series Cerebrovascular Diseases Extra
spelling doaj.art-e619171c0da5435a9cab951d27bc0abf2022-12-22T00:09:28ZengKarger PublishersCerebrovascular Diseases Extra1664-54562018-06-0182707910.1159/000488205488205Stroke Mortality in Kenya’s Public Tertiary Hospitals: A Prospective Facility-Based StudyLydia KadukaErastus MuniuChrispine OduorJane MbuiRobai GakungaJudith KwasaSylvanus WabwireNathan OkerosiAnne KorirScot RemickBackground: Despite the increasing global burden of stroke, there are limited data on stroke from Kenya to guide in decision-making. Stroke occurrence in sub-Saharan Africa has been associated with poor health outcomes. This study sought to establish the stroke incidence density and mortality in Kenya’s leading public tertiary hospitals for purposes of informing clinical practice and policy. Methods: This is a prospective study conducted at Kenya’s leading referral hospitals, namely, Kenyatta National Hospital (KNH) and Moi Teaching and Referral Hospital (MTRH). Adult patients with confirmed cases of stroke were recruited from February 2015 to January 2016 and followed up for a minimum period of 1 year. The WHO 2006 Stroke STEPS instrument was used to collect data on incidence and mortality at days 10 and 28 and every 3 months for 24 months. The person-time of follow-up was computed from admission to death, loss to follow-up, or the end of the study. A survival regression analysis was done using the Cox proportional hazards model. Results: A total of 719 patients were recruited (KNH: n = 406 [56.5%]; MTRH: n = 313 [43.5%]). The mean age was 58.6 ± 18.7 years, and the male-to-female ratio was 1: 1.4. Ischemic stroke accounted for 56.1% of the stroke cases. The peak age for stroke was between 50 and 69 years, when 36.3% of the cases occurred. Mortality at day 10 and day 28 was 18.4 and 26.7%, respectively. The inpatient mortality rate was 21.6%. The stroke incidence density was 507 deaths per 1,000 person-years of follow-up. The mean survival time was significantly different between inpatients (13.9 months; 95% CI: 13.0–14.7) and outpatients (18.6 months; 95% CI: 17.2–19.9) (p < 0.001). A 1-year increase in age increased the hazard by 1.8%. Inpatients had a 3.9-fold increase in hazard compared to outpatients. Conclusions: Mortality due to stroke is high, with poor survival observed in the first year after stroke. The risk of death increases with increasing age and duration of hospital stay. There is need for attention to quality of care and long-term needs of stroke patients to mitigate the high mortality rates observed. Public health initiatives aimed at early screening and diagnosis should be enhanced. Further research is recommended to establish the true burden of stroke at the community level to inform appropriate mitigation measures.https://www.karger.com/Article/FullText/488205StrokeMortalitySurvivalKenyaSub-Saharan Africa
spellingShingle Lydia Kaduka
Erastus Muniu
Chrispine Oduor
Jane Mbui
Robai Gakunga
Judith Kwasa
Sylvanus Wabwire
Nathan Okerosi
Anne Korir
Scot Remick
Stroke Mortality in Kenya’s Public Tertiary Hospitals: A Prospective Facility-Based Study
Cerebrovascular Diseases Extra
Stroke
Mortality
Survival
Kenya
Sub-Saharan Africa
title Stroke Mortality in Kenya’s Public Tertiary Hospitals: A Prospective Facility-Based Study
title_full Stroke Mortality in Kenya’s Public Tertiary Hospitals: A Prospective Facility-Based Study
title_fullStr Stroke Mortality in Kenya’s Public Tertiary Hospitals: A Prospective Facility-Based Study
title_full_unstemmed Stroke Mortality in Kenya’s Public Tertiary Hospitals: A Prospective Facility-Based Study
title_short Stroke Mortality in Kenya’s Public Tertiary Hospitals: A Prospective Facility-Based Study
title_sort stroke mortality in kenya s public tertiary hospitals a prospective facility based study
topic Stroke
Mortality
Survival
Kenya
Sub-Saharan Africa
url https://www.karger.com/Article/FullText/488205
work_keys_str_mv AT lydiakaduka strokemortalityinkenyaspublictertiaryhospitalsaprospectivefacilitybasedstudy
AT erastusmuniu strokemortalityinkenyaspublictertiaryhospitalsaprospectivefacilitybasedstudy
AT chrispineoduor strokemortalityinkenyaspublictertiaryhospitalsaprospectivefacilitybasedstudy
AT janembui strokemortalityinkenyaspublictertiaryhospitalsaprospectivefacilitybasedstudy
AT robaigakunga strokemortalityinkenyaspublictertiaryhospitalsaprospectivefacilitybasedstudy
AT judithkwasa strokemortalityinkenyaspublictertiaryhospitalsaprospectivefacilitybasedstudy
AT sylvanuswabwire strokemortalityinkenyaspublictertiaryhospitalsaprospectivefacilitybasedstudy
AT nathanokerosi strokemortalityinkenyaspublictertiaryhospitalsaprospectivefacilitybasedstudy
AT annekorir strokemortalityinkenyaspublictertiaryhospitalsaprospectivefacilitybasedstudy
AT scotremick strokemortalityinkenyaspublictertiaryhospitalsaprospectivefacilitybasedstudy