{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T16:54:15Z","timestamp":1792601655818,"version":"4.5.0"},"reference-count":35,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2022,9,29]],"date-time":"2022-09-29T00:00:00Z","timestamp":1664409600000},"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. Immunol."],"abstract":"<jats:p>Early identification of gastrointestinal (GI) bleeding in children with abdominal Henoch-Sch\u00f6nlein purpura (HSP) is essential for their subsequent treatment, and a risk prediction model for GI bleeding in abdominal HSP was constructed in this study to assist physicians in their decision-making. In a single-center retrospective study, the children collected were divided into two parts, a training set and a validation set, according to the time of admission. In the training set, univariate analysis was performed to compare demographic data and laboratory tests between the two groups of children with GI and non-GI bleeding, and the independent risk factors were derived using binary logistic equations to develop a scoring model for predicting GI bleeding in children by odds ratio (OR) values and receiver operating characteristic curves. The scoring model was then internally validated in validation set. The results showed that there were 11 indicators were statistically different between the two groups in the training set, including white blood cells, neutrophil-to-lymphocyte ratio, platelets, eosinophils (EO), high sensitivity C-reactive protein (hsCRP), activated partial thromboplastin time (APTT), sodium, potassium (K), albumin (ALB), Total bilirubin, and Immunoglobulin E (IgE) in the univariate analysis. Among them, the independent risk factors for GI bleeding included the six indicators of EO \u2264 0.045\u00d710^9\/L, hsCRP \u2265 14.5 mg\/L, APTT \u2264 28.1 s, K \u2265 4.18 mmol\/L, ALB \u2264 40.6 g\/L, and IgE \u2265 136 ng\/mL. According to the OR values, where EO \u2264 0.045 \u00d710^9\/L, hsCRP \u2265 14.5 mg\/L, APTT \u2264 28.1 s, ALB \u2264 40.6 g\/L each scored 3 points, K \u2265 4.18 mmol\/L, IgE \u2265 136 ng\/mL each scored 2 points, and the total score was 0-16 points. The sensitivity and specificity of predicting GI bleeding were 88.7% and 64.2%, respectively, when the child scored \u2265 7 points. In the validation set, the sensitivity, specificity and accuracy of the model in predicting GI bleeding were 77.4%, 74.5% and 75.2%, respectively. In conclusion, the construction of a scoring model to predict the risk of GI bleeding from abdominal HSP would greatly assist pediatricians in predicting and identifying children at high risk for GI bleeding at an early stage.<\/jats:p>","DOI":"10.3389\/fimmu.2022.1025335","type":"journal-article","created":{"date-parts":[[2022,9,29]],"date-time":"2022-09-29T05:07:30Z","timestamp":1664428050000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":16,"title":["Construction and internal validation of a predictive model for risk of gastrointestinal bleeding in children with abdominal Henoch-Sch\u00f6nlein purpura: A single-center retrospective case-control 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