1 ± 7.0 84.4 ± 5.9 86.2 ± 6.5 Duration*3 (hours) 8.19 ± 5.33 28.27 ± 37.77 34.39 ± 27.42 *1 CRP, C-reactive Protein; *2 WBC, White Blood Cell; *3 Duration, duration between onset

of symptoms and hospitalization To elucidate the Lazertinib surgical indication markers for acute appendicitis, the patients were divided into two groups which were surgical treatment necessary group consisted of gangrenous appendicitis and possible non-operative treatment group consisted of catarrhalis and phlegmonous appendicitis, since gangrenous appendicitis cannot be restored to normal histology, NCT-501 mw and catarrhalis and phlegmonous appendicitis could be curable with antibiotics. The CRP level and duration between the onset of symptoms and hospitalization significantly differed between the surgical treatment necessary and unnecessary group in univariate analysis (table 2). Multivariate analysis of the surgical treatment necessary and unnecessary groups was performed to identify an independent marker for the surgical indications of acute appendicitis. The logistic regression analysis indicated that only the CRP level is an independent

marker for distinguishing the severity of acute appendicitis (table Ilomastat 3). The ROC curve showed that the area under the ROC curve for the CRP level of necrotic appendicitis was 0.862, and the optimal cutoff value of CRP for surgical indication for classifying cases was around 4.95 mg/dl (sensitivity = 84.3%, specificity = 75.8%, false positive rate = 24.2%, false negative rate = 15.7%, positive predictive value = 64.2%, negative predictive value = 90.4%; figure 1). Table 2 Comparison Between the Necrotic and Non-necrotic Appendicitis groups by Univariate before analysis   without necrosis with necrosis P value   (catarrhalis+phregmonous, n = 99) (gangrenous, n = 51)   CRP*1 level (mg/dl) 3.462 ± 4.208

11.472 ± 7.594 < 0.0001 WBC*2 (×100 mm3) 140.66 ± 43.03 143.49 ± 47.68 0.713 Neutrophil Percentage (%) 84.2 ± 6.0 86.2 ± 6.5 0.1169 Duration*3 (hours) 25.02 ± 35.40 34.40 ± 27.42 0.1007 *1 CRP, C-reactive Protein; *2 WBC, White Blood Cell; *3 Duration, duration between onset of symptoms and hospitalization Table 3 Comparison Between the Necrotic and Non-necrotic Appendicitis groups by Multivariate analysis   P value RR*4 (95% CI*5) CRP* 1 level (mg/dl) < 0.0001 1.442 (1.242-1.673) WBC* 2 (×100 mm3) 0.1751 0.988 (0.971-1.005) Neutrophil Percentage (%) 0.3563 1.052 (0.945-1.171) Duration* 3 (hours) 0.3019 0.990 (0.970-1.009) Age (<16) 0.5205 1.507 (0.431-5.261) Gender (female) 0.1799 2.282 (0.683-7.617) *1 CRP, C-reactive Protein; *2 WBC, White Blood Cell; *3 Duration, duration between onset of symptoms and hospitalization; *4 RR, Relative risk; *5 CI, Confidence interval Figure 1 Receiver-operating characteristic (ROC) curve for serum C-reactive protein (CRP) levels of necrotic appendicitis. Discussion Appendicitis has been mainly treated by surgical management.

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