{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T06:39:21Z","timestamp":1792823961370,"version":"4.5.0"},"reference-count":30,"publisher":"Oxford University Press (OUP)","issue":"10","license":[{"start":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T00:00:00Z","timestamp":1785715200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,8,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>In rapidly ageing societies, promoting healthy ageing is essential. Japan launched a nationwide policy using questionnaire-based frailty screening to help older adults recognise their risk and engage in preventive care. This study evaluated whether this policy was associated with changes in long-term care (LTC) need.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>The intervention was a health guidance programme initiated through frailty screening and delivered at the municipal level from April 2022. We conducted this single-city study in Sukagawa City, Japan. We extracted monthly data on LTC certifications and population from January 2015 to December 2025. We analysed these data using an interrupted time-series design with segmented regression. The outcome was the monthly age-standardised LTC certification rate among adults aged \u226575\u00a0years. We assumed a slope change occurring 12\u00a0months after the intervention and fitted Poisson regression models with a log link and an offset for population.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Following the intervention, the trend in the LTC certification rate among adults aged \u226575\u00a0years declined relative to the pre-intervention trend (annualised RR for the change in trend, 0.974; 95% CI, 0.963\u20130.983). At the end of follow-up, the model-estimated age-standardised LTC certification rate was 6.8% lower than the counterfactual rate projected from continuation of the pre-intervention trend (95% CI, 4.4%\u201310.0%).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The frailty screening\u2013based preventive care initiative for older adults was associated with a reduction in LTC certification rates. These findings suggest the potential value of linking frailty screening with broad preventive guidance as a municipal approach to addressing population-level LTC need.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/ageing\/afag307","type":"journal-article","created":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T06:19:19Z","timestamp":1792822759000},"source":"Crossref","is-referenced-by-count":0,"title":["Association of frailty screening\u2013based preventive care with long-term care certification rates among Japanese people aged 75\u00a0years and older: an interrupted time-series analysis"],"prefix":"10.1093","volume":"55","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4399-2890","authenticated-orcid":false,"given":"Shunsuke","family":"Soma","sequence":"first","affiliation":[{"name":"Center for Innovative Research for Communities and Clinical Excellence (CiRC2LE), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Department of General Internal Medicine and Family Medicine, Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Center for General Internal Medicine and Family Medicine, Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Department of General Medicine, Iwase Satellite for Teaching and Research (STAR), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sho","family":"Sasaki","sequence":"additional","affiliation":[{"name":"Center for Innovative Research for Communities and Clinical Excellence (CiRC2LE), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Department of General Medicine, Iwase Satellite for Teaching and Research (STAR), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Section of Clinical Epidemiology, Department of Community Medicine, Graduate School of Medicine, Kyoto University , Kyoto, Kyoto Prefecture ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sumie","family":"Sakamoto","sequence":"additional","affiliation":[{"name":"Center for Innovative Research for Communities and Clinical Excellence (CiRC2LE), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Department of General Medicine, Iwase Satellite for Teaching and Research (STAR), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryoko","family":"Higa","sequence":"additional","affiliation":[{"name":"Center for Innovative Research for Communities and Clinical Excellence (CiRC2LE), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Department of General Medicine, Iwase Satellite for Teaching and Research (STAR), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5144-6585","authenticated-orcid":false,"given":"Ryohei","family":"Yamamoto","sequence":"additional","affiliation":[{"name":"Center for Innovative Research for Communities and Clinical Excellence (CiRC2LE), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Section of Clinical Epidemiology, Department of Community Medicine, Graduate School of Medicine, Kyoto University , Kyoto, Kyoto Prefecture ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroaki","family":"Nakagawa","sequence":"additional","affiliation":[{"name":"Center for Innovative Research for Communities and Clinical Excellence (CiRC2LE), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Department of General Internal Medicine and Family Medicine, Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Center for General Internal Medicine and Family Medicine, Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Department of General Medicine, Iwase Satellite for Teaching and Research (STAR), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9034-4370","authenticated-orcid":false,"given":"Hajime","family":"Yamazaki","sequence":"additional","affiliation":[{"name":"Center for Innovative Research for Communities and Clinical Excellence (CiRC2LE), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Section of Clinical Epidemiology, Department of Community Medicine, Graduate School of Medicine, Kyoto University , Kyoto, Kyoto Prefecture ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sugihiro","family":"Hamaguchi","sequence":"additional","affiliation":[{"name":"Center for Innovative Research for Communities and Clinical Excellence (CiRC2LE), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Department of General Internal Medicine and Family Medicine, Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Center for General Internal Medicine and Family Medicine, Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shunichi","family":"Fukuhara","sequence":"additional","affiliation":[{"name":"Center for Innovative Research for Communities and Clinical Excellence (CiRC2LE), Fukushima Medical University , Fukushima, Fukushima Prefecture ,","place":["Japan"]},{"name":"Department of Health Policy and Management, 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