Analysis of death risk factors among COVID-19 patients in Yazd, Iran: A case-cohort study

Background. The COVID-19 epidemic control has become the patients in the control group died. According to the results of a global challenge and many contributing variables are still logistic regression analysis in COVID-19 patients, each one-year unknown to policymakers. This case-cohort study was conducted increase in age increased the risk of mortality by 6% (HR = 1.06, to investigate the risk factors of mortality in COVID-19 patients. p < 0.001), each one-day increase in the hospital stay increased Methods. This case-cohort study was conducted on 956 samthe risk of death by 8% (HR = 1.08, p < 0.001). Moreover, the ples in Ardakan and Meybod counties, Yazd Province, between presence of cardiovascular disease, chronic neurological disease, February 20 and May 20, 2020. The data collection tool was a and chronic pulmonary disease increased the risk of death. The researcher-made questionnaire. Data analysis was done using patients who underwent mechanical ventilation had 85% less descriptive statistics and paired t-test, chi-square, and logistic chance of survival (HR = 0.15, p < 0.001). regression analysis. Conclusions. The results showed a higher mortality rate in the Results. Of a total cohort population of 993 in Ardakan and Meyelderly patients as well as those with underlying diseases. Attenbod counties, 435 were assigned to the control group and 521 tion should be paid to at-risk and elderly patients in terms of were assigned to the case group. The results of outcome analysis ensuring a healthy diet, improving their self-care practices, and showed that 14.4% of the patients in the case group and 11.5% of providing long-term medical and healthcare facilities.