Tracking Japan's development assistance for health, 2012-2016.

Background: Development assistance for health (DAH) is one of the most important means for Japan to promote diplomacy with developing countries and contribute to the international community. This study, for the first time, estimated the gross disbursement of Japan's DAH from 2012 to 2016 and clarified its flows, including source, aid type, channel, target region, and target health focus area.

Methods: Data on Japan Tracker, the first data platform of Japan's DAH, were used.

Trends in perinatal mortality and its risk factors in Japan: Analysis of vital registration data, 1979-2010.

As Japan has achieved one of the lowest perinatal mortality rates (PMR), our study aims to estimate trends in and risk factors for perinatal mortality among singleton births in Japan. We used Japanese vital registration data to assess trends in and risk factors for perinatal outcomes between 1979 and 2010. Birth and death registration data were merged.