Association between health indifference and problem drinking using a nationwide internet survey.

"Declarations Ethics approval and consent to participateAll the participants provided their informed consent before responding to the online questionnaire. Consent for publicationNot applicable. Competing interestsThe authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. Sources of fundingThis study was supported by Health Labor Sciences Research Grants (H26-junkankitou-ippan-023, H28-junkankitou-ippan-002, H28-junkankitou-ippan-008, and H29-tokubetsu-site-006), the Japan Society for the Promotion of Science (JSPS) KAKENHI Grants (15K19256 and 18H03062, and 21H04856), and the Health, Labor and Welfare Sciences Research Grants: Research on policies for global health issues (JPMH21BA1001). The findings and conclusions of this study are the sole responsibilities of the authors and do not represent the official views of the research funders. Author contributionsMami Wakabayashi conceptualized the paper, analyzed and interpreted the data, and wrote this original draft. Hirono Ishikawa commented about the methodology and concept of the Health Interest Scale and reviewed and edited the draft. Yoshiharu Fukuda interpreted and reviewed the data and commented on the manuscript. Hiroyasu Iso supervised the concept for the manuscript and reviewed and edited the manuscript. Takahiro Tabuchi conducted project administration and funding management, supervised the conceptualization of the manuscript, and reviewed and edited it. All authors read and approved the final manuscript. AcknowledgementsWe would like to thank the JASTIS team for their support with the data collection. Availability of data and materialThe data supporting the findings of this study are available on reasonable request. However, restrictions apply to the availability of these data to protect personal identification and such data are not shared. If any person wishes to verify our data, they may contact the corresponding author. Competing interests The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest."

"Sources of funding This study was supported by Health Labor Sciences Research Grants (H26-junkankitou-ippan-023, H28-junkankitou-ippan-002, H28-junkankitou-ippan-008, and H29-tokubetsu-site-006), the Japan Society for the Promotion of Science (JSPS) KAKENHI Grants (15K19256 and 18H03062, and 21H04856), and the Health, Labor and Welfare Sciences Research Grants: Research on policies for global health issues (JPMH21BA1001). The findings and conclusions of this study are the sole responsibilities of the authors and do not represent the official views of the research funders."