ABSTRACT
Previous research on travel behavior has concentrated on the behavior of traveling by cars, especially by private vehicles, while the research on cycling has focused on cycling infrastructure, the built environment, and the natural environment. Furthermore, the studies conducted during pandemics are mostly based on behavioral changes in motorized transportation. The present research tries to identify and evaluate the variables influencing cyclist behavior during covid-19 pandemic. In this research, the sample size retrieved from a survey of 375 participants was checked with Cronbach's alpha standard and estimated using confirmatory factor analysis. Results show that the variables related to health protocols can greatly impact knowing the behavior of cyclists in the time of Covid-19. Furthermore, the results show that the health issues of shared bikes can be an obstacle for people to use them more. © 2023, The Author(s), under exclusive licence to Intelligent Transportation Systems Japan.
ABSTRACT
Background: Among the medications administered for the management of COVID-19 patients, the induction drugs used for intubation have received little attention. The aim of this study was to compare the effect of induction drugs on the mortality of patients with COVID-19 requiring intubation. Methods: In this retrospective study, all patients who were admitted to Shahid Sadoughi and Shahid Rahnemoun hospitals in Yazd from February to March 2020 with definitive diagnosis of COVID-19 and needed intubation were enrolled. Patients were divided into 4 groups based on the type of drugs used in intubation, and mortality rate was assessed at the end of the first, second, fourth, and seventh days of the study. Statistical analyses were performed using SPSS 20 and P values < .05 was considered significant. Results: In this study, 76 patients were examined. Patients were divided into 4 groups, of which 21 were in etomidate group, 8 in ketamine group, 21 in sodium thiopental group, and 35 in midazolam group. Mortality rate in these 4 groups was 25%, 12.5%, 14.3%, and 14.3% (p=0.822), respectively at the end of the first day after intubation;it was 83.3%, 12.5%, 28.6%, and 25.7% (p=0.001), respectively, at the end of the second day;it was 83.3%, 12.5%, 42.9%, and 42.9% (p=0.015), respectively, until the end of the fourth day;it was 100%, 25%, 61.9%, and 65.7% (p=0.007), respectively, until the end of the seventh day. Admission to intubation time interval was 0.91±0.99, 3.12±1.95, 4.09±2.44, and 4.74±2.62 days, respectively (p<0.001). Conclusion: The results of this study suggest that the use of etomidate may be associated with higher mortality in COVID-19 patients. Further studies are needed to verify the results of this study. Copyright© Iran University of Medical Sciences