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Yin-Jiang Lv, Qi-Lei Hu, Rong Huang, Liang Zhang, Li-Feng Wu, Shui Fu Department of Clinical Laboratory, The First Peopleâs Hospital of Yuhang District, Hangzhou, Hangzhou, Zhejiang, 311100, Peopleâs Republic of ChinaCorrespondence: Shui FuDepartment of Clinical Laboratory, The First Peopleâs Hospital of Yuhang District, Hangzhou, No. 369 Yingbin Road of Nanyuan Street, Yuhang District, Hangzhou, 311100, Peopleâs Republic of ChinaTel +86 571 89369404Email fushuiolo@163.comObjective: This study explores the significance of serum amyloid A (SAA), C-reactive protein (CRP), and white blood cell (WBC) in the diagnosis and treatment of diarrhea in infants.Methods: Specimens were collected from 126 children with diarrhea and 66 healthy children undergoing health examination. According to the results of stool culture and rotavirus (RV) antigen, these children were divided into three groups: rotavirus group (70 cases), bacterial infection (56 cases), and control groups (66 cases). On the fourth day of admission, children in the RV group underwent stool culture again. Based on the subsequent results, they were further divided into two groups, ie, no secondary bacterial infection and secondary bacterial infection groups. The levels of RV antigen, bacterial antigen, SAA, CRP, and WBC were detected in all children. Then, ROC curve analysis was performed to determine the diagnostic efficacy of SAA, CRP and WBC.Results: The levels of SAA, CRP, and WBC for the RV group were lower than those of the bacterial infection group, but higher compared with the control group (P< 0.05). The diagnostic efficacy of SAA was higher than that of CRP and WBC, with the area under the curve of 0.876, 0.803, and 0.765, respectively. The positive and negative predictive values, specificity, and sensitivity of SAA were slightly better compared with CRP and WBC. The SAA, CRP, and WBC levels of children with a bacterial infection in the RV group on the fourth and seventh days after admission were also significantly higher compared with children without bacterial infection.Conclusion: Serum amyloid A, CRP, and WBC levels had a high value in the differential diagnosis of infantile diarrhea. As such, they can be used in the early diagnosis and curative efficacy assessment of children with diarrhea.Keywords: group A rotavirus, serum amyloid A, C-reactive protein, white blood cell, diagnostic efficacy |
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