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| Establishment and validation of nomogram prediction model for the risk of the postpartum stress incontinence development |
| The Second Affiliated Hospital of Air Force Medical University, Xi 'an, Shannxi Province, 710038 |
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Abstract To investigate the risk factors of the occurrence of postpartum stress urinary incontinence (SUI), and to establish and verify the nomogram prediction model for the risk factors of SUI. Methods: The clinical data of 360 women who underwent pelvic floor function screening between June 2020 and September 2021 were reviewed retrospectively. Logistic regression was used to predict the independent influencing factors of SUI, and the meaningful factors of which were screened to establish the nomogram prediction model for the risk factors of postpartum SUI. Receiver operating characteristic (ROC) curve was used to analyze the predictive efficacy of the nomogram prediction model for SUI. Results: The incidence of SUI was 25.0%. Univariate analysis showed that the number of pregnancies, the residence, the occupation during pregnancy, the education level, the monthly income per capita, the mode of delivery, the SUI during pregnancy, and the abortion history of the women were related to the occurrence of their postpartum SUI. Multivariate analysis showed that the number of pregnancies ≥2 times, the rural residence, the occupational physical labor, the vaginal delivery, the occurrence of SUI during pregnancy, and the history of abortion of the women were the independent risk factors of their postpartum SUI. Based on the results of multi-factor analysis, the nomogram prediction model for postpartum SUI was established, the area under ROC curve of which for predicting SUI was 0.887 (95%CI 0.821-0.915) (P＜0.01). The BOOTSTRAP method used for verification by 500 resamples showed that the fitted curve of the nomogram prediction model had no obvious difference from its ideal curve, with good consistency. Conclusion: The number of pregnancies ≥2 times, the rural residence, the occupational physical labor, the vaginal delivery, the occurrence of SUI during pregnancy, and the history of abortion of the women are the independent risk factors of the occurrence of their postpartum SUI, which should be paid attention to and be early intervention in clinic.
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