Koji Makiyama
Tokyo, Japan
Last Updated: 09/26/2026
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Found 8 publications
Changes in marriage, divorce and births during the COVID-19 pandemic in Japan.
Journal: BMJ global health
Published: November 01, 2021
Effect of emergency declaration on mental health during the COVID-19 pandemic in Japan: A social network service-based difference-in-differences approach.
Journal: Science progress
Published: August 23, 2021
Geographically weighted generalized Farrington algorithm for rapid outbreak detection over short data accumulation periods.
Journal: Statistics in medicine
Published: April 08, 2021
Reduced mortality during the COVID-19 outbreak in Japan, 2020: a two-stage interrupted time-series design.
Journal: International journal of epidemiology
Published: March 30, 2021
Excess All-Cause Deaths during Coronavirus Disease Pandemic, Japan, January-May 20201.
Journal: Emerging infectious diseases
Published: February 24, 2021
Assessing the regional impact of Japan's COVID-19 state of emergency declaration: a population-level observational study using social networking services.
Journal: BMJ open
Published: February 16, 2021
Trends in Healthcare Access in Japan during the First Wave of the COVID-19 Pandemic, up to June 2020.
Journal: International journal of environmental research and public health
Published: February 08, 2021
An assessment of self-reported COVID-19 related symptoms of 227,898 users of a social networking service in Japan: Has the regional risk changed after the declaration of the state of emergency?
Journal: The Lancet regional health. Western Pacific
Published: May 21, 2020
Showing 1-8 of 8
Last Updated: 09/26/2026