{
  "abstract": "Background: The Beijing–Tianjin–Hebei region is entering a phase of intensified population aging. Effectively balancing population aging with the supply of older adult care services is essential and plays a crucial role in promoting high-quality development of aging-related initiatives and improving the overall performance of older adult care systems.\n\nMethods: This study employs multi-source data and applies entropy-based methods, supply–demand matching analysis, a spatial mismatch index model, and multi-year contribution models to assess the adaptability between population aging and older adult care service provision in the Beijing–Tianjin–Hebei region from 2000 to 2020.\n\nResults: (1) Population aging in the region shows a steadily intensifying trend, characterized by an initial period of rapid growth followed by a slower increase. Older adult care service levels have improved overall, with the highest performance observed in the older adult care dimension. Indicators related to health, social engagement, and social security demonstrate gradual improvement, while the development of age-friendly environments progresses steadily. (2) The spatial distribution of population aging has shifted from a core–ring structure to a dual-core radial pattern. Older adult care services demonstrate both clustering and spillover effects, with higher service levels concentrated in central areas and lower levels in peripheral regions. Regional disparities have gradually narrowed. (3) Regarding supply–demand matching, the high-supply, low-demand pattern is most prevalent and shows clear spatial clustering. Spatial mismatch types exhibit cyclical evolution, progressing from a positive–negative equilibrium stage to a negative-dominant stage, then to a positive-dominant stage, and returning to a positive–negative equilibrium stage. (4) Supply–demand matching and spatial mismatch patterns demonstrate significant spatial correlation. Peripheral urban areas of Beijing and Tianjin exhibit a high-supply, low-demand pattern (positive mismatch), whereas central urban areas exhibit a low-supply, high-demand pattern (negative mismatch). Most prefecture-level cities in Hebei also experience negative mismatch. Mismatch contributions are spatially concentrated, with high-value areas primarily located along the Tianjin–Hebei border. Overall, adaptability between population aging and older adult care service provision is gradually improving.\n\nConclusion: This study develops a three-dimensional framework for adaptability analysis consisting of spatiotemporal measurement, supply–demand matching, and spatial adaptability. The framework addresses gaps in existing research on older adult care services, particularly in factor matching and spatial correlation. The findings provide theoretical insights and policy support for optimizing the allocation of older adult care resources in the Beijing–Tianjin–Hebei region, promoting cross-regional coordinated older adult care models, and supporting sustainable population development.",
  "abstract_shown": true,
  "affiliations": [
    "School of Geographical Sciences, Hebei Normal University, Shijiazhuang, 050024 China",
    "School of Geographical Sciences, Liaoning Normal University, Dalian, 116029 China"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Ruiling Han"
    },
    {
      "affs": [
        1
      ],
      "name": "Xiaoyang Guo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/125vmk2z20fc7.bib",
  "cited_by": 0,
  "doi": "10.1186/s12889-026-28289-x",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13753376/",
  "id": "125vmk2z20fc7",
  "issns": [
    "1471-2458"
  ],
  "landing_url": "https://doi.org/10.1186/s12889-026-28289-x",
  "language": "en",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Research"
    ],
    [
      "openalex",
      "3319|Aging, Elder Care, and Social Issues"
    ]
  ],
  "openalex": "W7196953029",
  "pdf_url": null,
  "pmcid": "PMC13753376",
  "pmid": "43015707",
  "published": "2026-08-06",
  "publisher": "BMC",
  "ris": "https://research.draconitic.com/paper/125vmk2z20fc7.ris",
  "sources": [
    {
      "first_seen": "2026-11-15T12:22:32Z",
      "native_id": "PMC13753376",
      "source": "pmc",
      "url": "https://doi.org/10.1186/s12889-026-28289-x"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "issn:1471-2458",
      "subfield": "epidemiology-public-health"
    }
  ],
  "title": "Spatiotemporal measurement and adaptability of population aging and older adult care services in the Beijing–Tianjin–Hebei Region, China",
  "title_text": "Spatiotemporal measurement and adaptability of population aging and older adult care services in the Beijing–Tianjin–Hebei Region, China",
  "type": "peer-reviewed",
  "updated_at": "2026-11-15T12:22:32Z",
  "url": "https://research.draconitic.com/paper/125vmk2z20fc7",
  "venue": "BMC Public Health",
  "versions": []
}