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A training set was established to build the predictive model and conduct internal validation, which was assessed for discrimination using ROC curves and for Calibration using the Hosmer\u2013Lemeshow test and Calibration curves. A nomogram was constructed to visually present the results of the logistic regression analysis. An external validation dataset was created for assessing the external validation of the model.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      a total of 2220 patients were enrolled. Multiple logistic regression analysis showed that negative pressure ball drainage, adhesive fixation method, self-care ability (self-care vs. complete dependence), self-care ability (partial dependence vs. complete dependence), and Thoracoabdominal drainage tubes were statistically significant factors associated with UEX (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.05).The predictive model equation was as follows: a\u2009=\u20090.95\u20131.66\u2009\u00d7\u2009drainage method\u2009+\u20092.45\u2009\u00d7\u2009fixation method \u22124.17\u2009\u00d7\u2009self-care ability (self-care vs. complete dependence) \u22122.79\u2009\u00d7\u2009self- care ability (partial dependence vs. complete dependence).In the internal validation, the AUC was 0.897 (95% CI\u2009=\u20090.87\u20130.92;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.001), with a sensitivity of 0.75 and specificity of 0.93, indicating a high level of discrimination for the model. The Hosmer\u2013Lemeshow test yielded a chi-square (\u03c7\n                      <jats:sup>2<\/jats:sup>\n                      ) value of 2.823 with 8 degrees of freedom and a\n                      <jats:italic>P<\/jats:italic>\n                      -value of 0.945, indicating high accuracy of the model. In the external validation, the AUC was 0.839 (95% CI\u2009=\u20090.75\u20130.93;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.001), with a sensitivity of 0.73 and specificity of 0.96. The Hosmer\u2013Lemeshow test yielded a \u03c7\n                      <jats:sup>2<\/jats:sup>\n                      value of 12.85 with 8 degrees of freedom and a\n                      <jats:italic>P<\/jats:italic>\n                      -value of 0.117. The DCA plot shows that the DCA curve is consistently higher than the two extreme curves, indicating a good fit of the model.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The predictive model for the risk of unplanned extubation of thoracoabdominal drainage tubes in postoperative patients demonstrates good discrimination and Calibration. It can provide reference for clinical nursing staff in predicting the risk and early development of personalized preventive strategies for drainage tube UEX.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s40001-025-02748-4","type":"journal-article","created":{"date-parts":[[2025,6,9]],"date-time":"2025-06-09T00:31:18Z","timestamp":1749429078000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Prediction model for unplanned extubation of thoracoabdominal drainage tube in postoperative inpatients: a retrospective study"],"prefix":"10.1186","volume":"30","author":[{"given":"Yushu","family":"Sun","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiuping","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jia","family":"Xu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaojie","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fanglei","family":"Gu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hongying","family":"Pan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,6,9]]},"reference":[{"key":"2748_CR1","first-page":"737","volume":"17","author":"L Chen","year":"2019","unstructured":"Chen L, Xue T, Lin J, Pu Q, Zheng Y. 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