{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,21]],"date-time":"2026-08-21T13:27:07Z","timestamp":1787318827396,"version":"build-2736575974"},"reference-count":52,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T00:00:00Z","timestamp":1768348800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Cardiovasc. Med."],"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Systematic review and meta-analysis of the incidence and risk factors for 30-day unplanned readmissions in patients with chronic heart failure(CHF).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We searched PubMed, Embase, Web of Science, Scopus, Medline, CINAHL, and Chinese databases up to February 2025. Data were analyzed by using Stata 17.0.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Among 4,040 screened publications, 21 studies were included. The incidence of 30-day unplanned readmission in CHF patients was 17.7% (95% CI: 13.9%\u201321.5%). Age \u226565 years (OR\u2009=\u20091.35,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.024), diagnosed with chronic kidney disease (CKD) (OR\u2009=\u20091.26,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.000), diabetes (OR\u2009=\u20091.49,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.001), atrial fibrillation (AF) (OR\u2009=\u20091.12,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.005), coronary heart disease (CHD) (OR\u2009=\u20095.28,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.000), cardiomyopathy (OR\u2009=\u20091.44,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.000), NYHA class \u2265\u2162 or \u2163 (OR\u2009=\u20091.64,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.000), use of beta blockers (OR\u2009=\u20091.25,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.000), loop diuretics (OR\u2009=\u20091.41,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.004), thiazides (OR\u2009=\u20091.22,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.000), LVEF\u2009&amp;lt;\u200940% (OR\u2009=\u20091.44,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.000), and length of stay (LOS) (OR\u2009=\u20091.16,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.000) were risk factors for 30-day unplanned readmission in CHF patients.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The incidence of 30-day unplanned readmissions in patients with CHF is moderate but concerning. Accurate identification of identified risk factors for targeted interventions to reduce the need for readmissions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Systematic Review Registration<\/jats:title>\n                    <jats:p>\n                      <jats:ext-link>https:\/\/www.crd.york.ac.uk\/PROSPERO\/view\/CRD42024610843<\/jats:ext-link>\n                      , PROSPERO CRD42024610843.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fcvm.2025.1663018","type":"journal-article","created":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T06:39:46Z","timestamp":1768372786000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":2,"title":["Incidence and influencing factors of 30-day unplanned readmission in chronic heart failure patients: a systematic review and 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