This study develops a procedure to rank agencies based on their incident responses using roadway clearance times for crashes. This analysis is not intended to grade agencies but to assist in identifying agencies requi...This study develops a procedure to rank agencies based on their incident responses using roadway clearance times for crashes. This analysis is not intended to grade agencies but to assist in identifying agencies requiring more training or resources for incident management. Previous NCHRP reports discussed usage of different factors including incident severity, roadway characteristics, number of lanes involved and time of incident separately for estimating the performance. However, it does not tell us how to incorporate all the factors at the same time. Thus, this study aims to account for multiple factors to ensure fair comparisons. This study used 149,174 crashes from Iowa that occurred from 2018 to 2021. A Tobit regression model was used to find the effect of different variables on roadway clearance time. Variables that cannot be controlled directly by agencies such as crash severity, roadway type, weather conditions, lighting conditions, etc., were included in the analysis as it helps to reduce bias in the ranking procedure. Then clearance time of each crash is normalized into a base condition using the regression coefficients. The normalization makes the process more efficient as the effect of uncontrollable factors has already been mitigated. Finally, the agencies were ranked by their average normalized roadway clearance time. This ranking process allows agencies to track their performance of previous crashes, can be used in identifying low performing agencies that could use additional resources and training, and can be used to identify high performing agencies to recognize for their efforts and performance.展开更多
Background:To investigate the clinical value of Zengneng Jiedu Formula in treating asymptomatic and mild COVID-19 patients.Methods:Asymptomatic and mild COVID-19 patients admitted to the Changji Stadium Fangcang Hospi...Background:To investigate the clinical value of Zengneng Jiedu Formula in treating asymptomatic and mild COVID-19 patients.Methods:Asymptomatic and mild COVID-19 patients admitted to the Changji Stadium Fangcang Hospital were randomly divided into treatment and control groups in a 1:1 ratio.The treatment group received Zengneng Jiedu Formula in addition to the standard treatment protocol outlined in the Diagnosis and Treatment Plan for Novel Coronavirus Pneumonia.The control group received the standard treatment protocol alone.The hospitalization duration and time to viral clearance were compared between the two groups.The study adhered to CONSORT guidelines and was registered at the Chinese Clinical Trial Registry(ChiCTR2200060589).Results:A total of 246 patients completed the entire treatment and assessment.Data analysis after treatment showed that Zengneng Jiedu Formula significantly reduced the hospitalization duration for asymptomatic and mild COVID-19 patients(7.06 days vs.8.01 days,P<0.001)and shortened the overall time to viral clearance(8.58 days vs.10.12 days,P<0.001).The incidence of adverse events was similar between the two groups.Conclusion:Zengneng Jiedu Formula can effectively shorten the hospitalization duration and time to viral clearance for asymptomatic and mild COVID-19 patients,providing a safe and effective treatment option that warrants clinical application and further study.展开更多
文摘This study develops a procedure to rank agencies based on their incident responses using roadway clearance times for crashes. This analysis is not intended to grade agencies but to assist in identifying agencies requiring more training or resources for incident management. Previous NCHRP reports discussed usage of different factors including incident severity, roadway characteristics, number of lanes involved and time of incident separately for estimating the performance. However, it does not tell us how to incorporate all the factors at the same time. Thus, this study aims to account for multiple factors to ensure fair comparisons. This study used 149,174 crashes from Iowa that occurred from 2018 to 2021. A Tobit regression model was used to find the effect of different variables on roadway clearance time. Variables that cannot be controlled directly by agencies such as crash severity, roadway type, weather conditions, lighting conditions, etc., were included in the analysis as it helps to reduce bias in the ranking procedure. Then clearance time of each crash is normalized into a base condition using the regression coefficients. The normalization makes the process more efficient as the effect of uncontrollable factors has already been mitigated. Finally, the agencies were ranked by their average normalized roadway clearance time. This ranking process allows agencies to track their performance of previous crashes, can be used in identifying low performing agencies that could use additional resources and training, and can be used to identify high performing agencies to recognize for their efforts and performance.
基金supported by the Construction Fund of Shanghai Innovative Flagship Hospital of Integrated Traditional Chinese and Western Medicine(ZY(2021-2023)-0205-05)the Special TCM Emergency Response Project for Novel Coronavirus Infection of the State Administration of Traditional Chinese Medicine(2023ZYLCYJ02-6).
文摘Background:To investigate the clinical value of Zengneng Jiedu Formula in treating asymptomatic and mild COVID-19 patients.Methods:Asymptomatic and mild COVID-19 patients admitted to the Changji Stadium Fangcang Hospital were randomly divided into treatment and control groups in a 1:1 ratio.The treatment group received Zengneng Jiedu Formula in addition to the standard treatment protocol outlined in the Diagnosis and Treatment Plan for Novel Coronavirus Pneumonia.The control group received the standard treatment protocol alone.The hospitalization duration and time to viral clearance were compared between the two groups.The study adhered to CONSORT guidelines and was registered at the Chinese Clinical Trial Registry(ChiCTR2200060589).Results:A total of 246 patients completed the entire treatment and assessment.Data analysis after treatment showed that Zengneng Jiedu Formula significantly reduced the hospitalization duration for asymptomatic and mild COVID-19 patients(7.06 days vs.8.01 days,P<0.001)and shortened the overall time to viral clearance(8.58 days vs.10.12 days,P<0.001).The incidence of adverse events was similar between the two groups.Conclusion:Zengneng Jiedu Formula can effectively shorten the hospitalization duration and time to viral clearance for asymptomatic and mild COVID-19 patients,providing a safe and effective treatment option that warrants clinical application and further study.
