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- W4387355830 abstract "The COVID-19 pandemic has had a substantial impact on hospital services, as many institutions have observed a surge in healthcare-associated infections (HAIs) despite heightened adherence to isolation protocols and hand hygiene. According to the World Health Organization (WHO), HAIs are among the leading causes of mortality and morbidity of hospitalized patients. This study aims to examine the effect of the COVID-19 pandemic on the incidence of central venous catheter-related bloodstream infections (CR-BSIs) of hospitals in the city of S~ao Paulo. Initially we considered segmented zero-inflated Poisson (ZIP) mixed-effects models with known changepoint, which can be estimated applying the standard framework of ZIP mixed-effects models. However, we found that the changepoint could occur at varying times across different hospitals. We present an effective iterative procedure to estimate segmented ZIP mixed-effects models with random changepoints in a likelihood-based framework. The suggested procedure is a practical approach employing conventional computational tools for estimating standard mixed-effects zero-inflated Poisson (ZIP) models. Prior to its implementation to the CR-BSI data, simulation studies were conducted to examine the accuracy of the estimation under various scenarios." @default.
- W4387355830 created "2023-10-05" @default.
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- W4387355830 date "2023-10-02" @default.
- W4387355830 modified "2023-10-06" @default.
- W4387355830 title "Segmented zero-inflated Poisson mixed effects model with random changepoint" @default.
- W4387355830 doi "https://doi.org/10.48550/arxiv.2310.01694" @default.
- W4387355830 hasPublicationYear "2023" @default.
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