ArticleEpidemiology and infection2024
Factors associated with COVID-19 in-hospital death and COVID-19 vaccine effectiveness against COVID-19 hospitalization in the Philippines during pre-omicron and omicron period: A case-control study (MOTIVATE-P study).
Article in Epidemiology and infection, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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.
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Who cites it
1 citing paper in PubMed.
- Experience conducting COVID-19 vaccine effectiveness studies in response to the COVID-19 pandemic in Japan and the Philippines: lessons for future epidemics and potential pandemics.Western Pacific surveillance and response journal : WPSARArticle
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Authors and funding
18 authors.
Funding
Abstract
COVID-19 vaccine effectiveness (VE) studies are limited in low- and middle-income countries. A case-control study was conducted among COVID-19 and other pneumonia patients admitted to a hospital in the Philippines during the pre-Omicron and Omicron periods. To elucidate factors associated with in-hospital death, 1782 COVID-19 patients were assessed. To estimate absolute VE for various severe outcomes, 1059 patients were assessed (869 [82.1%] COVID-19 cases; 190 [17.9%] controls). Factors associated with in-hospital death included older age, tuberculosis (adjusted odds ratio [aOR] 2.45 [95% confidence interval {95% CI} 1.69-3.57]), HIV (aOR 3.30 [95% CI 2.03-5.37]), and current smokers (aOR 2.65 [95% CI 1.72-4.10]). Pre-Omicron, the primary series provided high protection within a median of 2 months (hospitalization: 85.4% [95% CI 35.9-96.7%]; oxygen requirement: 91.0% [95% CI 49.4-98.4%]; invasive mechanical ventilation (IMV): 97.0% [95% CI 65.7-99.7%]; death: 96.5% [95% CI 67.1-99.6%]). During Omicron, the primary series provided moderate-high protection within a median of 6-9 months (hospitalization: 70.2% [95% CI 27.0-87.8%]; oxygen requirement: 71.4% [95% CI 29.3-88.4%]; IMV: 72.7% [95% CI -11.6-93.3%]; death: 58.9% [95% CI -82.8-90.8%]). Primary series VE against severe COVID-19 outcomes was consistently high for both pre-Omicron and Omicron in a setting where approximately half of the vaccinees received inactivated vaccines.
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