Differences Between Cancer Survivors and Healthy Subjects in Factors that Facilitate and Obstruct the Use of the Foster Parent System and Special Adoption System: A Nationwide Cross-Sectional Study in Japan.

Purpose: To investigate factors that obstruct and facilitate the use of the foster parent and special adoption systems (i.e., foster systems) by cancer survivors, and examine how to effectively provide information. Methods: This was a cross-sectional study that compared the results of a questionnaire survey of foster parents and adoptive parents (i.e., foster parents) who were and were not cancer survivors belonging to foster parent associations in 33 locations in Japan. This study was supported by a 2022 Ministry of Health, Labor, and Welfare Grant-in-Aid for Scientific Research (Grant No. 20EA1004). Results: "Lack of information," an obstructive factor and "Sympathetic understanding and cooperation from my partner and family," a facilitative factor were the highest score in both groups. Significant differences between the two groups were found in "Support from government agencies and others for foster parents," a facilitative factor, which was lower in the cancer survivors' group. There were no other significant differences between both the groups. Conclusion: This study found that when considering the use of the foster systems, a lack of information was the biggest obstructive factor and family understanding was the most helpful for both cancer survivors and noncancer groups. It was thought that stronger government support for cancer survivors might encourage cancer survivors to consider becoming foster parents. It would be effective for cancer treatment facilities, reproductive medical facilities, the government, and foster parent associations to work together to provide information carefully to cancer survivors.