Suicide mortality rates in Japan before and beyond the COVID‐19 pandemic era

Statistical analyses from Japan reported increasing suicides in 2020, first in the world, proving the severity of the public health crisis during the COVID‐19 pandemic; however, so far, international suicides have not been shown to be objectively increasing at population level. Followed studies reported the existence of a substantial heterogeneity of suicides among subgroups and time‐lag impacts. Against public health crisis in Japan, policymakers, psychiatrists and public health personnel should prioritize improving suicide prevention programs following evidence‐based policymaking. Understanding how/what factors relate to the COVID‐19 pandemic and what other factors have shaped the increasing suicide numbers since 2020 through objectively well‐controlled/fine‐grained analyses of high‐quality longitudinal/cross‐sectional data at the individual, regional, and national levels is important for identifying the reasons for the recent trend. For this purpose, this study examined suicide statistics, statistical analysis methods, and their interpretations. Recent analyses suggest an increased suicide risk among females