Association between social support and ambulance use among older people in Japan: an empirical cross-sectional study.

"Declarations Ethics approval and consent to participateThis study was approved by the Ethics Committee of the National Center for Geriatrics and Gerontology in Japan (approval number: 1274–2), Chiba University (approval number: 3442), and Japan Gerontological Evaluation and Research Insitute (approval number: 2019-01) and was performed in accordance with the Declaration of Helsinki. We confirmed that consent to participate in this study was informed consent and informed consent was obtained from all participants in this study. Consent for publicationAll participants were informed that participation in this study was voluntary and that completing the questionnaire, selecting the checkbox for approval, and returning it by mail would indicate their consent to participate and publish the results. Competing interests The authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This study used data from Japan Gerontological Evaluation Study (JAGES), which was supported by MEXT (Ministry of Education, Culture, Sports, Science and Technology-Japan)-Supported Program for the Strategic Research Foundation at Private Universities (2009–2013), JSPS (Japan Society for the Promotion of Science) KAKENHI Grant Numbers (JP18390200, JP22330172, JP22390400, JP23243070, JP23590786, JP23790710, JP24390469, JP24530698, JP24683018, JP25253052, JP25870573, JP25870881, JP26285138, JP26882010, JP15H01972), Health Labour Sciences Research Grants (H22-Choju-Shitei-008, H24-Junkanki [Seishu]- Ippan-007, H24-Chikyukibo-Ippan-009, H24-Choju-Wakate-009, H25-Kenki-Wakate-015, H25-Choju-Ippan-003, H26-Irryo-Shitei-003 [Fukkou], H26-Choju-Ippan-006, H27-Ninchisyou-Ippan-001, H28-choju-Ippan-002, H28- Ninchisyou-Ippan-002, H30-Kenki-Ippan-006, H30-Junkankitou-Ippan-004, JPMH22LA2003), Japan Agency for Medical Research and development (AMED) (JP17dk0110017, JP18dk0110027, JP18ls0110002, JP18le0110009), and the Research Funding for Longevity Sciences from National Center for Geriatrics and Gerontology (24–17, 24–23, 29–42, 30–22). The views and opinions expressed in this article are those of the authors and do not necessarily reflect the official policy or position of the respective funding organizations."