Changes of cancer diagnosis disclosure to children in Japan in the last 20 years.

Background: The practice of cancer diagnosis disclosure to children has been changed with the times. The regulations of clinical trials in the 2000s might change the practice in Japan. However, the perspective of this topic among children and adults has not been investigated in detail.

Change in children's perception of cancer in the last 10 years in Japan.

Background: Social awareness of cancer can be changed with cancer education and proper distribution of cancer information. This study addressed the current situation and historical changes to children's perception of cancer.

Methods: Questionnaire surveys were conducted among healthy school children aged 10-15 years in 2008 and 2018.