{
  "abstract": "Background/Objectives: Hospital-level incidence estimates may obscure differences between intensive care units (ICUs) and general wards. We compared temporal trends in treated adult in-hospital cardiac arrest (IHCA) using location-specific patient-days. Methods: This retrospective study covered January 2016 to June 2026 at a South Korean teaching hospital. Monthly treated IHCA counts were modeled using negative binomial regression with patient-days as an offset, a setting × time interaction, and adjustment for the COVID-19 period and seasonality. Calendar-month score-based HAC analyses assessed robustness to serial correlation. January–March 2022 was excluded because arrest location was unavailable. Results: The incidence cohort comprised 1712 events: 1373 in ICUs and 339 in general wards. The combined rate was 1.06 per 1000 patient-days. The setting × time interaction was significant (monthly IRR 0.9843, model-based 95% CI 0.9768–0.9918), corresponding to a 17.3% annual decrease in the ICU-to-ward rate ratio. Calendar-month score-based HAC confidence intervals also excluded 1. ICU incidence declined (monthly IRR 0.9875, 95% CI 0.9825–0.9925), whereas the general-ward model showed no statistically significant temporal trend (IRR 1.0033, 95% CI 0.9975–1.0090; p = 0.263). Conclusions: Location-specific patient-day denominators identified different temporal trajectories in treated IHCA. These findings describe observed treated events and do not establish changes in underlying arrest risk or resuscitation performance.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Emergency Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong 18450, Republic of Korea",
    "Department of Critical Care Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong 18450, Republic of Korea",
    "Clinical Quality Improvement Team, Hallym University Dongtan Sacred Heart Hospital, Hwaseong 18450, Republic of Korea"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Shinhwan Lee"
    },
    {
      "affs": [
        1
      ],
      "name": "Kyung Hun Nam"
    },
    {
      "affs": [
        0
      ],
      "name": "Hang A. Park",
      "orcid": "0000-0002-8714-0828"
    },
    {
      "affs": [
        0
      ],
      "name": "Hye Ji Park"
    },
    {
      "affs": [
        2
      ],
      "name": "Yoo Ri Roh"
    },
    {
      "affs": [
        0
      ],
      "name": "Choung Ah Lee",
      "orcid": "0000-0003-2487-8988"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6029p3rb6satw.bib",
  "cited_by": 0,
  "doi": "10.3390/jcm15207881",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13705293/?tool=EBI",
  "id": "6029p3rb6satw",
  "issns": [
    "2077-0383"
  ],
  "landing_url": "https://www.mdpi.com/2077-0383/15/20/7881",
  "language": "eng",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2711|Cardiac Arrest and Resuscitation"
    ]
  ],
  "openalex": "W7221669848",
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13705293/pdf/?tool=EBI",
  "pmcid": "PMC13705293",
  "pmid": null,
  "published": "2026-10-01",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/6029p3rb6satw.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:00Z",
      "native_id": "10.3390/jcm15207881",
      "source": "crossref",
      "url": "https://www.mdpi.com/2077-0383/15/20/7881"
    },
    {
      "first_seen": "2026-10-30T12:21:44Z",
      "native_id": "PMC:PMC13705293",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13705293"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2711|Cardiac Arrest and Resuscitation",
      "subfield": "general"
    }
  ],
  "title": "Diverging Trends in Treated In-Hospital Cardiac Arrest in Intensive Care Units and General Wards Using Location-Specific Patient-Days",
  "title_text": "Diverging Trends in Treated In-Hospital Cardiac Arrest in Intensive Care Units and General Wards Using Location-Specific Patient-Days",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:21:44Z",
  "url": "https://research.draconitic.com/paper/6029p3rb6satw",
  "venue": "Journal of Clinical Medicine",
  "versions": []
}