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Clinical prediction of complicated appendicitis:A case-control study utilizing logistic regression 被引量:1
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作者 Yosuke Sasaki Fumiya Komatsu +10 位作者 Naoyasu Kashima Takeshi Suzuki Ikutaka Takemoto Sho Kijima Tadashi Maeda Taito Miyazaki Yoshiko Honda hiroaki zai Nagato Shimada Kimihiko Funahashi Yoshihisa Urita 《World Journal of Clinical Cases》 SCIE 2020年第11期2127-2136,共10页
BACKGROUND Since high-quality evidence on conservative treatment of acute appendicitis using antibiotics has increased,differentiation of patients with complicated appendicitis(CA)from those with simple appendicitis(S... BACKGROUND Since high-quality evidence on conservative treatment of acute appendicitis using antibiotics has increased,differentiation of patients with complicated appendicitis(CA)from those with simple appendicitis(SA)has become increasingly important.Previous studies have revealed that male gender,advanced age,comorbid conditions,prehospital delay,fever,and anorexia are risk factors of perforated appendicitis.Elevated serum C-reactive protein(CRP)level and hyponatremia have also been reported as predictive biomarkers of CA.However,confounding between various factors is problematic because most previous studies were limited to univariate analysis.AIM To evaluate non-laboratory and laboratory predictive factors of CA using logistic regression analyses.METHODS We performed an exploratory,single-center,retrospective case-control study that evaluated 198 patients(83.9%)with SA and 38 patients(16.1%)with CA.Diagnoses were confirmed by computed tomography images for all cases.We compared age,sex,onset-to-visit interval,epigastric/periumbilical pain,right lower quadrant pain,nausea/vomiting,diarrhea,anorexia,medical history(of previous non-surgically treated appendicitis,diabetes,hypertension,dyslipidemia,liver cirrhosis,hemodialysis,chronic lung diseases,malignant tumors,immunosuppressant use,and antiplatelet use),vital signs,physical findings,and laboratory data to select the explanatory variates for logistic regression.Based on the univariate comparisons,we performed logistic regression for clinical differentiation between CA and SA using only nonlaboratory factors and also including both non-laboratory and laboratory factors.RESULTS The 236 eligible patients consisted of 198 patients(83.9%)with SA and 38 patients(16.1%)with CA.The median ages were 34 years old[interquartile ranges(IR),24-45 years]in the SA group and 49 years old(IR,35-63 years)in the CA group(P<0.001).The median onset-to-visit interval was 1 d(IR,0-1)and 1 d(IR,1-2)in the SA and CA groups,respectively(P<0.001).Heart rate,body temperature,and serum CRP level in the CA group were significantly higher than in the SA group;glomerular filtration rate and serum sodium were significantly lower in the CA group.Anorexia was significantly more prevalent in the CA group.The regression model including age,onset-to-visit interval,anorexia,tachycardia,and fever as non-laboratory predictive factors of CA(Model 1)showed that age≥65 years old,longer onset-to-visit interval,and anorexia had significantly high odds ratios.The logistic regression for prediction of CA including age,onset-to-visit interval,anorexia,serum CRP level,hyponatremia(serum sodium<135 mEq/L),and glomerular filtration rate<60 mL/min/1.73 m2(Model 2)showed that only elevated CRP levels had significantly high odds ratios.Under the curve values of receiver operating characteristics curves of each regression model were 0.74 for Model 1 and 0.87 for Model 2.CONCLUSION Our logistic regression analysis on differentiating factors of CA from SA showed that high CRP level was a strong dose-dependent predictor of CA. 展开更多
关键词 Acute abdomen ABSCESS APPENDICITIS C-reactive protein Forecasting Intestinal perforation
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