The consequences of this bias may be false-negative studies.
研究中存在的这种偏倚可能产生假阴性结果。
As recent studies have shown, some tests for H1N1 infection are not entirely reliable, and false-negative results are a frequent problem.
最近的研究显示，用于H1N1感染的有些检测方法不完全可靠，所以假阴性结果是经常出现的问题。
Therefore, the ankle clonus test had no false-negative or true-positive result and 4 false-positive results(8.16%).
因此在本观察中，踝阵挛试验无真阳性和假阴性结果，4例假阳性结果（8.16 % ）。
Results: Reliable detection of DNA methylation of TLX3 and FOXE3 segregated ALL from those clear of disease with minimal false-negative and false-positive results.
结果：在最小限度的假阴性及假阳性结果中，TLX3和FOXE3DNA甲基化检测可有效鉴别ALL。
The incorporation of similarity information is meant to reduce the false-positive rate, but in doing so it increases the false-negative rate.
相形之下，结合了相似性比对的方法之后虽然能够降低假阳性，但是却大大提高了假阴性。
The primary end point was the proportion of patients with a negative outcome, related to either endoscopic procedures (complications) or to false-negative diagnosis of stones.
初级终点是与任意一个内镜程序(并发症)或结石的假阴性诊断相关的阴性结果患者的比率。
In contrast, if he infers that she is not interested when she is in fact interested, then he has made an error of false negative (what the statisticians call the "Type II" error).
相反，如果他推断，她不感兴趣，而实际上她感兴趣，那么他犯了假阴性的错误(统计学家称为“第二类”错误)。
As with any screening test, and most vaccines, the process is not 100 percent effective, and a small number of women with precancerous cells escape detection with false negative tests, for example.
如同大多数疫苗一样，任何筛选试验的程序都不是百分之一百的有效。举例来说，有一小部分妇女的癌前期病变细胞在筛选试验中显示假阴性而逃过了检测。
A third possibility is delayed fixation and false negative results for the primary tumor, which could explain some of the gain of ER in recurrence.
第三个可能的原因是原发肿瘤延迟固定和假阴性结果，这个能解释复发病灶的ER阳性表达。
Result During routine we had discovered 5 anomalous results of ABO blood grouping by monoclonal reagents. 3 cases were false negative and 2 ones were false positive.
结果在常规工作中，单克隆试剂导致ABO血型鉴定结果异常者5例，最后被确定为假阴性3例，假阳性2例。
False negative tests can result from low worm counts, immature infections and all male infections.
心蠕虫数量小、未成熟或仅有雄虫感染时会导致检测出现假阴性。
Objective to reduce missed diagnosis and false negative diagnosis and to improve the accuracy of fine needle aspiration cytology (FNAC).
目的减少对乳腺癌的漏诊，降低假阴性率，提高针吸细胞学诊断的准确性。
Objective To study the false negative of occult blood detection by monoclonal antibody method of gastral fluid.
目的针对胃液潜血单克隆抗体法假阴性实例进行初探试验。
Besides, the reasons that gated myocardial tomography appeared false negative and false positive was analysed, and the means of reducing false positive was described.
同时还分析了核素心肌显像可能出现假阴性和假阳性的原因以及有效防止假阳性率升高的手段。
Compared with operation findings, 84 were true positive, 7 false positive, 34 true negative, and 3 false negative.
手术及随访证实真阳性84个，假阳性7个，真阴性34个，假阴性3个。
The causes leading to a false - negative diagnosis were analysed.
作者对假阴性的原因作了分析。
Objective The aim is to reduce missed diagnosis and false negative diagnosis, and to improve the accuracy of fine needle aspiration cytology (FNAC).
目的减少对乳腺癌的漏诊，降低假阴性诊断，提高针吸细胞学诊断的准确性。
No one had positive pelvic lymph node and negative SLN, The predictive rate was 100% and the false -negative rate was zero.
未发现SLN无转移而盆腔其余淋巴结存在转移者，SLN对盆腔淋巴转移的预测准确性为100%，假阴性率为0。
Results The coincident rate for positive of reexamination methods was 100% and for negative was 100%. There was not false positive result and false negative result.
结果此复检方案的阳性符合率和阴性符合率均为100%，未出现假阳性和假阴性。
The false negative rate of malignant liver tumors in the first biopsy procedure guided by conventional ultrasound was 9.4% (21/224).
恶性肿瘤首次常规超声引导穿刺活检假阴性率为9.4%（21/224）。
Metastatic rate of lymph node in neck central area was the highest (46.8%), but micrometastasis of lymph node couldn't be found with CT leading to false negative in 5 cases with PTC.
颈中央区淋巴结转移率最高(46.8%)，并且小的转移淋巴结ct不能发现而出现5例假阴性。
Results Bedside emergency transthoracic echocardiography correctly identified 24 patients without false negative (sensitivity 100%) and with one false positive (specificity 96%).
结果急诊床旁经胸超声心动图正确检出24例心包填塞，无假阴性，敏感性100%，1例假阳性，特异性96%。
Staphylococcus aureus and pseudomonas aeruginosa in seven TCM ointments from our hospital were detected. Some showed the false negative reaction.
本文对我院七种中药软膏剂进行了金黄色葡萄球菌和绿脓杆菌检测，有的出现假阴性反应。
Result: SEP conducted velocity changed significantly at 15 minutes after spinal striking and presented false negative changes for 4 times.
结果：SEP传导速度在脊髓损伤后15分钟出现显著性变化，共出现四次假阴性结果。
The comparison of 160 cases and 320 controls tested with those examined by fecal occult blood test has exhibited a decrease to 23.750% in the false negative rate.
对160名病人和320名正常人进行判别的结果与通常采用的大便潜血试验比较，假阴性率降低到23.75%。
Finally, the last point I want to raise about classification before using WEKA is that of false positive and false negative.
在使用weka前，有关分类我还想指出最后一点，那就是假正和假负。
So we make two types of errors: a type I error, or false positive, is believing a pattern is real when it is not; a type II error, or false negative, is not believing a pattern is real when it is.
因此我们常犯两类错误：第一类，是虚假的肯定，当原型并不存在时它认为原型是真的；第二类，是虚假的否定，当原型存在时它却认为原型是虚假的。
However, the major obstacle to use technique as a routing is its high false negative rates and inconstant results, especially in paraffin-embedded tissues.
然而，假阴性率高、结果不稳定等因素严重阻碍着该技术的广泛应用，在石蜡组织中尤其如此。
However, the major obstacle to use technique as a routing is its high false negative rates and inconstant results, especially in paraffin-embedded tissues.
然而，假阴性率高、结果不稳定等因素严重阻碍着该技术的广泛应用，在石蜡组织中尤其如此。
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