Accuracy of occult blood tests over a six-day period.
Accuracy of occult blood tests over a six-day period.
复制标题
六天内潜血测试的准确性。
作者：
Farrands Pa;Hardcastle Jd
对61例确诊的结直肠癌患者进行了粪便潜血试验(Fecatest和Hemoccult)的检测，并对其假阴性率进行了测定。当受试者在三天多的时间里测试他们的粪便时，9.7%的Fecatest玻片和27.8%的血液隐蔽玻片呈阴性(p<0.02)。将检测的天数从3天延长到6天，Fecatest的假阴性率降至4.8%，Haemoccult的假阴性率降至9.7%(p<0.05)。当受试者进行6天的测试时，Fecatest和Haemoccult测试的假阴性率没有显著差异。隐匿性假阴性结果主要发生在分化较好的左侧癌患者。
: The false negative rate of the stabilized guaiac faecal occult blood tests, Fecatest and Haemoccult, was determined in 61 patients with known colorectal cancer. When subjects tested their stools over three days, 9.7% of the Fecatest slides and 27.8% of the Haemoccult slides were negative (p less than 0.02). Extending the number of days of testing from three to six reduced the false negative rate of Fecatest to 4.8% and Haemoccult to 9.7% (p less than 0.05). There was no significant difference between the false negative rate of Fecatest and Haemoccult test when subjects performed six-day testing. Haemoccult false negative results occurred mainly in patients with well differentiated left sided carcinomas.