Information sharing during disasters tends to be confusing. We started the trial operation of a digital whiteboard (DWB) as a communication tool during disasters in 2019 and fully introduced it in 2022. The DWB is a large tablet that allows interactive communication in close to real-time in remote locations through Wi-Fi.

To verify the usefulness of the system, DWBs were placed at triage posts in severely, moderately, and mildly damaged areas during a 2022 disaster drill responding to mass casualties to facilitate the sharing of patient information between Disaster Response Headquarters and each treatment area. In each treatment area, doctors, nurses and paramedics completed a standard form to share information about each patient. Information collected included the triage tag number, patient name, age, gender, type of injury or disease, and description of the treatment.

Six DWBs were remotely shared, with the triage post noting the number of patients passing through each severity level, and each treatment area noting the treatment status of each patient. The Disaster Response Headquarters replied with the results of adjustments such as hospitalization ward and time to start surgery. The descriptions were reflected in the remotely shared DWBs in about one second. Text conversations through the DWBs were also seen. In the post-event survey, some said that the smooth sharing of information led to quick decisions. Compared to conventional radios, DWBs have the advantage of allowing communication through text, which allows more detailed and accurate patient information to be communicated quickly. The results suggest the survival rate can be improved by assisting early medical intervention or rapid entry of patients into operating rooms. The next goal is to use DWBs for medical coordination among disaster base hospitals.

DWBs are effective for the rapid and accurate sharing of patient information during disasters.

The aim of the study was to develop the Japanese versions of Executive Interview (J-EXIT25) and Executive Clock Drawing Task (J-CLOX) and to evaluate the aspects of executive function that these two tests will be examining.

The concurrent validity and reliability of J-EXIT25 and J-CLOX were first examined in all participants (n = 201). Next, the relationship between the two tests was examined using receiver operating characteristic (ROC), correlation, and regression analyses in healthy participants (n = 45) and participants with mild cognitive impairment (n = 36) and dementia (n = 95).

Satisfactory concurrent validity and reliability of J-EXIT25 and J-CLOX were shown. ROC analysis indicated that J-EXIT25 and J-CLOX1 were superior to the Frontal Assessment Battery, but inferior to the Mini-Mental State Examination (MMSE), in discriminating between non-dementia and dementia. J-EXIT25, J-CLOX1, and J-CLOX2 scores were significantly correlated with age, scores on the MMSE, Instrumental Activities of Daily Living (IADL) and Physical Self-Maintenance Scale (PSMS), and care level. In stepwise regression analyses of IADL scores, MMSE and J-EXIT25 were significantly independent predictors in men, and MMSE, age, and J-CLOX1 were significantly independent predictors in women. J-EXIT25, MMSE, and J-CLOX1 were significantly independent predictors in stepwise regression analysis of PSMS scores, and J-EXIT25 was the only significantly independent predictor in stepwise regression analysis of care level.

J-EXIT25 and J-CLOX are valid and reliable instruments for assessment of executive function in older people. The present results suggest that these tests have common and distinct psychometric properties in the assessment of executive function.