Internal Medicine: Open Access

Internal Medicine: Open Access
Open Access

ISSN: 2165-8048

+44 1300 500008

Elena Battino

Department of Biostatistics and Epidemiology, Loyola University Medical Centre, Illinois, USA

  • Research Article   
    Survival Analysis of COVID-19 Patients using Cox Frailty Model
    Author(s): Elena Battino*

    Background: The coronavirus disease 2019 (COVID-19) has been a pandemic and has affected mortality worldwide. The Cox Proportional Hazard (CPH) model is becoming more popular in time to event data analysis. When there are unobserved/unmeasured individual's factors, then the results of the CPH may not be reliable. So, this study aimed to determine the association between frailty and survival time in hospitalized COVID-19 patients. Methods: This was a Single-center observational study conducted at one of the hospitals in Iran. So that, hospitalized patients with confirmed COVID-19 were included. Epidemiological, clinical, laboratory and outcome data on admission were extracted from electronic medical records. After selecting the most important prognostic risk factors on survival, CPH and gamma-frailty Cox models were used to identify the u.. View More»
    DOI: 10.35248/2165-8048.22.12.358

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