biostudies-literatureCheng YGuangdong MedicalNatural Science Foundation of Guangdong ProvinceNational Natural Science Foundation of Chinae065312https://www.ebi.ac.uk/biostudies/studies/S-EPMC9944677biostudies-literatureUnknown13(2)<h4>Objectives</h4>The present study aimed to develop and validate nomograms to predict the survival of patients with breast invasive micropapillary carcinoma (IMPC) to aid objective decision-making.<h4>Design</h4>Prognostic factors were identified using Cox proportional hazards regression analyses and used to construct nomograms to predict overall survival (OS) and breast cancer-specific survival (BCSS) at 3 and 5 years. Kaplan-Meier analysis, calibration curves, the area under the curve (AUC) and the concordance index (C-index) evaluated the nomograms' performance. Decision curve analysis (DCA), integrated discrimination improvement (IDI) and net reclassification improvement (NRI) were used to compare the nomograms with the American Joint Committee on Cancer (AJCC) staging system.<h4>SetBMJ openDevelopment and validation of nomograms to predict survival in patients with invasive micropapillary carcinoma of the breast.PMC9944677A20205162018A03031366681872459Huang YZhang ZHe ZSun JYTang RChi FCheng YZhang PfalseDevelopment and validation of nomograms to predict survival in patients with invasive micropapillary carcinoma of the breast.<h4>Objectives</h4>The present study aimed to develop and validate nomograms to predict the survival of patients with breast invasive micropapillary carcinoma (IMPC) to aid objective decision-making.<h4>Design</h4>Prognostic factors were identified using Cox proportional hazards regression analyses and used to construct nomograms to predict overall survival (OS) and breast cancer-specific survival (BCSS) at 3 and 5 years. Kaplan-Meier analysis, calibration curves, the area under the curve (AUC) and the concordance index (C-index) evaluated the nomograms' performance. Decision curve analysis (DCA), integrated discrimination improvement (IDI) and net reclassification improvement (NRI) were used to compare the nomograms with the American Joint Committee on Cancer (AJCC) staging system.<h4>Set2023-01-01T00:00:00Z2023 Feb2025-04-04T19:00:28.921Z2025-04-04T19:00:28.921ZS-EPMC99446773681017810.1136/bmjopen-2022-065312