The 2011 Great East Japan Earthquake had a tremendous impact in terms of human suffering in Japan. To date, drowning has been considered the primary cause of death in the context of tsunami disasters. According to Japan's National Police Agency [9], causes of death other than drowning were also indicated, including due to fire and traumatic shock. Given the reports of deaths from causes other than drowning in the 2011 GE JE, a need to summarize these deaths in a statistical manner and systematize them according to the actual situation was perceived. To that end, in this study, we examined victim data from the 2011 GEJE provided by the Miyagi Prefecture Police Headquarters with reference to the International Statistical Classification of Diseases and Related Health Problems to investigate a classification method that would reflect the actual situation of this event. Using this classification method, we attempted to analyze the actual situation with regard to causes of death in all of Miyagi Prefecture during the 2011 GEJE. Consequently, the following five classification methods were proposed: (1) aggregate a cause of death into one higher category in the ICD-10, (2) aggregate what can be forensically determined to be the same cause of death, (3) aggregate a cause of death by combining the two methods above, (4) aggregate unknown causes, and (5) aggregate causes that do not fall into other categories. As a result of classification by these five methods, we classified the causes of death in Miyagi Prefecture into the twelve distinct categories.

就日本的人类苦难而言，2011年东日本大地震产生了巨大影响。迄今为止，溺水已被认为是海啸灾难中的主要死亡原因。根据日本国家警察署的报告[9]，还指出了溺水以外的死亡原因，包括火灾和外伤性休克。鉴于2011年GE JE中因溺水以外的原因造成死亡的报道，人们认为有必要以统计方式汇总这些死亡并根据实际情况将其系统化。为此，在这项研究中，我们参考了宫城县警察总部提供的2011 GEJE受害者数据，并参考了《疾病和相关健康问题国际统计分类》，以研究能够反映该事件实际情况的分类方法。使用这种分类方法，我们试图分析2011年GEJE期间整个宫城县的死亡原因。因此，提出了以下五种分类方法：（1）将死因归为ICD-10中的一个较高类别，（2）将可以通过法医确定为相同死因的归为一类，（3）将一个通过组合以上两种方法来确定死亡原因，（4）汇总未知原因，以及（5）汇总未归入其他类别的原因。