Wattanasirichaigoon S
Department of Surgery, Faculty of Medicine, Vajira Hospital, Srinakharinwirot University, Bangkok, Thailand.
J Med Assoc Thai. 1994 Feb;77(2):87-91.
Two hundred and thirty-three patients with a pathological diagnosis of acute appendicitis from 1989 to 1990 were reviewed. A comparative series of 235 elective cases who were admitted during the same period, was similarly reviewed. Using these data, the binary tables could be constructed and the cutoff point was obtained by plotting the positive and negative predictive values. This series yielded the clinically significant laboratory findings that the cutoff point of total leukocytic count, percentage of neutrophils and total neutrophilic count were 11,500 mm3, 75 per cent and 8,000 mm3 respectively. Combined specificity of all three tests is higher (95.74%), but the sensitivity is lower (61.55%).
对1989年至1990年期间病理诊断为急性阑尾炎的233例患者进行了回顾性研究。同期还对235例择期手术病例进行了类似的回顾性研究，作为对照系列。利用这些数据，可以构建二元表，并通过绘制阳性和阴性预测值来确定临界值。该系列研究得出了具有临床意义的实验室结果，即白细胞总数、中性粒细胞百分比和中性粒细胞总数的临界值分别为11,500/mm³、75%和8,000/mm³。这三项检测的联合特异性较高（95.74%），但敏感性较低（61.55%）。
