Medical statistics need to be properly understood and used in order to assess the significance of results obtained in clinical practice. To clarify whether the medical staff in our hospital appropriately understands medical statistics, this study conducted a questionnaire survey with an objective assessment of basic medical statistics. Of 1498 hospital staff, 464 responded to the questionnaire on medical statistics, which included the following items considered important for the evaluation and use of hypothesis testing: interpretation of p-values, reasons for using different tests (t-test and Mann-Whitney U-tests), presentation of test results for the Mann-Whitney's U-test, and selection of a statistical method to use as a measure of independence. The percentage of correct answers was 20.5%, 16.2%, 6.3%, and 15.1% for the interpretation of p-values, reasons for using different tests, presentation of test results, and choice of statistical method, respectively. The percentage of correct answers for each question was significantly higher for those with research and writing experience than for those without such experience. The number of correct answers was also significantly higher for those with research and writing experience than for those without such experience. Additionally, 20 of the 464 respondents were able to correctly answer all four questions. Multiple regression analysis showed that the number of correct answers was associated with experience in research, experience in writing papers, and job title (multiple regression analysis: R2=0.429758). Our medical staff’s understanding of medical statistics was low, and we were able to identify some of the factors that influence this understanding. These results suggest the importance of learning from clinical research and writing experience in order to improve understanding of medical statistics in the future.

We are under pressure to reform the social security system and work styles. To realize these reforms and basic principles, we need to understand the current environment surrounding the hospital and consider future measures. We report on the problems identified as a result of our investigation of the medical environment in the South West Mikawa West Medical Region and our hospital, and propose the use of emergency medical technicians (EMTs) as a solution to these problems. We examined data from the National Census, the Japan Medical Association Research Institute for General Policy Studies, the Fire and Disaster Management Agency of the Ministry of Internal Affairs and Communications, and our hospital’s management meeting. In this medical area the population aged 65 years or older and the demand for medical care are projected to increase toward the year 2045. On the other hand, the number of physicians and nurses per 100,000 population in this medical region is below the national average. Almost no change was seen in the number of patients coming to the hospital by ambulance or the number of emergency admissions by ambulance, and their admission rates did not change significantly over the past 5-year period. However, the rate of unfilled ambulance demand increased, due to the impact of full beds. Of the total number of emergency ambulance admissions, the rate of moderately ill patients averaged 74% over the 5-year period. The number of inpatient transfers in 2022 decreased by 25.5% (176) compared to that in 2019 due to the lack of personnel to transport patients. As the demand for medical care increases toward 2045, we need to reduce the rate of unfilled ambulance demand while at the same time reforming work styles to create a more comfortable workplace for healthcare workers. To achieve these goals, key tasks may be to review the transfer transport system for moderately ill patients and to expand the role of EMTs.