The Evaluation of the Health Information Exchange with the Number of Usage and the Introduction of Outpatient to the Hospitals at Nagasaki Japan.

Health Information Exchange (HIE) has been gradually spreading in Japan. But the effect and evaluation of these systems have not been proven. The aim of this study is to examine the effect of the Japanese HIE through the evaluation of the clinical activities in Nagasaki University Hospital. The electric medical records of 5335 patients were shared in the Ajisai-net, which was Japanese HIE in Nagasaki, from 2009 to 2015. And the number of shared patients increased every year, and the annual average number was 762.1. On the other hand, the number of the patients who was introduced from clinics to our hospital and whose medical records were shared in the Ajisai-net increased every year. In conclusion, the usage of Japanese HIE is useful for the clinical consultation and medical care, and these systems have the good effect on the hospital management in Japan.