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相对偏倚
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  relative bias
     When the concentration of creatinine was 100 μmol/L,500 μmol/L and 900 μmol/L,the relative bias of dry chemistry method was 10.5%,7.7%,7.4%.
     肌酐浓度为100μmol/L、500μmol/L、900μmol/L时,干化学法的相对偏倚分别为10.5%、7.7%、7.4%。
短句来源
     Results In testing the patient's urine AMY,there was better correlativity between the dry and wet chemical methods,r=0.993.The expected relative bias between two methods was 15.8% at 180 U/L 6.6% at 490 U/L and 3.7% at 980 U/L for urine AMY.
     偏倚估计时样本尿淀粉酶活力为 180U/L、 4 90U/L和 980U/L ,干化学法和湿化学法测定结果的预期相对偏倚分别为 15 8%6 6 %和 3 7%。
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     Results When Olympus AU 2700/Zhongsheng system was calibrated by the indicative value of the Beckman multi-calibrator,the relative bias of UREA,Cr,Ca,TG were above 5% between Olympus AU 2700/Zhongsheng and the standard system.
     结果 Beckman校准品的标示值直接校正AU 2700/中生试剂系统时,各指标的均值与标准系统的均值相对偏倚超过5%的有UREA、Cr、Ca.
短句来源
     All results were analyzed by SPSS 11.0 software. Results Compared with the indicative value,the relative bias of Urea,Cr,Ca,TG were above 5%.
     结果 Beckman校准品的标示值与Beckman校准品在“奥林帕斯AU2 70 0 /中生试剂”测定系统中校正值的相对偏倚超过 5 %的项目有Urea、Cr、Ca、TG。
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     Beckman Delta CX7 system and the standard system,the relative bias were all lower than 5%. Meanwhile,the linear regressions were good.
     Beckman Delta CX7检测系统准确度传递后的AU 2700/中生试剂系统与标准测试系统相比,各指标均值相对偏倚均小于5%,同时线性回归良好。
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  “相对偏倚”译为未确定词的双语例句
     The relativity bias of pH was very little,but the largest bias of PCO2 and PO2 was 17.74% and 23.52%,respectively.
     PH的相对偏倚很小,PCO2和PO2的最大相对偏倚分别为17.74%、23.52%。
短句来源
     The comparative deflection for K + was 5.7%, and the comparative deflection for Na + and Cl - were both <2.2%.
     除K+ 在 3.0mmol/L处相对偏倚为 5 .7% ,Na+ 、Cl-偏倚均 <2 .2 %。
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     When total bilirubin was 34.2μmol/L; 171 μmol/L; 342μmol/L,the deviation of thin-film method analysis was 2 78%;
     总胆红素浓度为 34.2μmol/ L、171μmol/ L、342μmol/ L时 ,干化学法的相对偏倚分别为 2 .78%、1.0 4 %、0 .82 %。
短句来源
     Results: The withinrun cv and total withinrun cv of ALT,TG,Urea are both less than 3%,The withinrun cv of TBil is less than 3%,total withinrun cv is less than 10%,the correlation coefficients of three kinds of reagents is 0.984 ~ 0.9992 ,the deviation index is less than 3.5% , 3.5% , 9.5% and 8.6% .
     TBiL批内 <3 % ,总CV <10 % ; 三种试剂比较r在 0 .984~ 0 .9992间 ,ALT、TG、TBiL、Urea相对偏倚分别小于 3 .5 %、3 .5 %、9.5 %、8.6%。
短句来源
     The bias for absolute CD +_4T cells between two methods were 32.5%,15.8% and 5.5% at 200,500 and 1 000 cells per microliter respectively.
     CD+ 4T细胞绝对计数的预期相对偏倚在 CD+ 4T细胞为 2 0 0个/μl时是 3 2 .5 % ,5 0 0个 /μl时是 1 5 .8% ,1 0 0 0个 /μl时是 5 .5 %。
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  相似匹配句对
     Theory of Relativity & Theory of Relative Absoluteness
     相对绝对论
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     THE STUDY OF RELATIVE COULOMETRIC TITRITION
     相对库仑滴定法
短句来源
     A PARTIAL FORCE BIAS MONTE CARLO SCHEME AND ITS APPLICATION IN CALCULATING RELATIVE FREE ENERGY
     部分力偏倚蒙特卡罗方法和它在计算相对自由能中的应用
短句来源
     In determing the patient's urine AMY,the relative bias between the dry and wet chemical methods goes down when the activity of urine AMY is increased.
     随着样本尿淀粉酶活力的增加 ,两种方法测定结果的相对偏倚则减小
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  relative bias
To ensure a relative bias less than 10% assuming an intraclass correlation of 0.025, which is not unusual in most of the animal genetic studies, the total number of observations (N) should be not less than 500.
      
The LA-ICP-AES analyses of real samples led to good agreement with the results obtained by solution-based ICP determination with a relative bias not exceeding 10%.
      
The results were evaluated using three statistical criteria; z-score, the Utest score and the relative bias.
      
Using this RL, the relative bias for the TF modulus is >amp;lt;10% for MSC>amp;gt;0.2.
      
Comparisons were performed by simulating the Zipf-Mandelbrot parametric model and estimating three statistics of these indices, i.e., the relative bias, the coefficient of variation, and the relative root-mean-squared error.
      
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Objective It describes procedures for designing an analyzing a method comparison experiment for serum albumin(ALB) assay and determining the relative bias between two methods using split patient samples.Method According to the procedure described by the NCCL approved guideline: method comparison and bias estimation using patient samples; 40 patient samples were analyzed in 5 operating days, analyze each patient sample in duplicate using both BCG and BCP method. The duplicates were assessed for each method...

Objective It describes procedures for designing an analyzing a method comparison experiment for serum albumin(ALB) assay and determining the relative bias between two methods using split patient samples.Method According to the procedure described by the NCCL approved guideline: method comparison and bias estimation using patient samples; 40 patient samples were analyzed in 5 operating days, analyze each patient sample in duplicate using both BCG and BCP method. The duplicates were assessed for each method within the same run. The coefficient of correlation was calculated as well as the bia between the methods.Results In the patient′s serum sample, the bias between BCG and BCP methods were 1.8% at 50g/L or 5.5% at 40 g/L or 11.6% at 30 g/L for albumin. In the commercial quality control serum products, the bias between the two methods varied up to 36%.Conclusion In determination of the patient′s ALB, the bias between BCG and BCP goes up when the concentration of ALB is decreased. But the bias between the two methods varies up to 36% when the quality control serum is determined.

目的 分析溴甲酚绿 (BCG)法和溴甲酚紫 (BCP)法进行血清样本白蛋白 (ALB)测定时的偏倚。方法 依据美国国家临床实验室标准协会EP9 A文件 ,每天取临床样本 8份 ,分别用两种方法测定样本白蛋白含量 ,共测定 5d ,记录检验结果 ,去除离散点 ,计算线性方程和相关系数 ,进行偏倚估计。结果 在进行患者新鲜血清样本白蛋白测定时 ,BCG法和BCP法测定结果的预期相对偏倚在ALB浓度 =5 0g/L时为 1.8% ,白蛋白 =40g/L时为 5 .5 % ,白蛋白 =30g/L时为 11.6 % ;在测定质控品白蛋白时 ,两种方法测定结果的相对偏倚可达 36 %。结论 BCG和BCP方法在测定血清样本白蛋白时 ,测定结果的相对偏倚随白蛋白浓度降低而增加 ;在测定质控品时 ,其相对偏倚随产品不同而不同 ,最大可达 36 %

Objective Investigating for the standardization of serum enzyme determination by using enzyme calibrator in lab tests Methods 150 laboratories were involved in this program. One enzyme calibrator and three patient samples were send to each participate lab The calibrator was tested using routine method and record the results The patient samples were analyzed before and after calibration Record the results All lab data was processed with computer Results Compare with the target values, the bias...

Objective Investigating for the standardization of serum enzyme determination by using enzyme calibrator in lab tests Methods 150 laboratories were involved in this program. One enzyme calibrator and three patient samples were send to each participate lab The calibrator was tested using routine method and record the results The patient samples were analyzed before and after calibration Record the results All lab data was processed with computer Results Compare with the target values, the bias of alanine aminotransferase (ALT), aspartate aminotransferase (AST), amylase (AMY) and lactate dehydrogenase (LD) assays were 3 8%, -1 8%, 2 3% and -5 2% respectively, the bias of alkaline phosphatase (ALP), gamma glutamyltransferase (GGT) and creatine kinase (CK) assays were 13 7%, -13 9 and -19 2% respectively The precision of the enzyme assays were improved by using calibrators Conclusions The traceability of ALT, AST, AMY and LD assays were reasonable Calibrating by using enzyme calibrator can improve the assay precision among laboratories

目的 通过酶校 (标 )准品在临床实验室中的应用 ,探讨血清酶测定标准化的新途径。方法 向参加实验室 (15 0家 )发放酶校准品 1支和血清样本 3支 ,各实验室用现行方法分别测定校准品和血清样本 ,记录检验结果 ;用校准品定标后再测定血清样本 1次 ,记录检验结果 ;计算校准品测定结果总体均值与标示值间的偏倚和校准前后血清样本测定结果精密度的变化。结果 丙氨酸氨基转移酶 (ALT)、天门冬氨酸氨基转移酶 (AST)、淀粉酶 (AMY)和乳酸脱氢酶 (LD)的测定结果均值与标准品标示值的相对偏倚≤± 6 % ,分别为 3 8% ,- 1 8% ,2 3%和 - 5 2 % ;碱性磷酸酶 (ALP)、γ 谷氨酰基转移酶 (GGT)和肌酶激酶 (CK)的实验室检测结果与标准品标示值间的相对偏倚小于 2 0 % ;分别为13 7% ,- 13 9%和 - 19 2 %。在应用校准品后 ,多数项目测定结果的变异系数 (CV % )得到不同程度的改善 ,ALT由 10 %~ 4 4 %下降至 8%~ 4 2 % ,LD由 16 %~ 39%下降至 8%~ 11%。结论 我国临床实验室对血清...

目的 通过酶校 (标 )准品在临床实验室中的应用 ,探讨血清酶测定标准化的新途径。方法 向参加实验室 (15 0家 )发放酶校准品 1支和血清样本 3支 ,各实验室用现行方法分别测定校准品和血清样本 ,记录检验结果 ;用校准品定标后再测定血清样本 1次 ,记录检验结果 ;计算校准品测定结果总体均值与标示值间的偏倚和校准前后血清样本测定结果精密度的变化。结果 丙氨酸氨基转移酶 (ALT)、天门冬氨酸氨基转移酶 (AST)、淀粉酶 (AMY)和乳酸脱氢酶 (LD)的测定结果均值与标准品标示值的相对偏倚≤± 6 % ,分别为 3 8% ,- 1 8% ,2 3%和 - 5 2 % ;碱性磷酸酶 (ALP)、γ 谷氨酰基转移酶 (GGT)和肌酶激酶 (CK)的实验室检测结果与标准品标示值间的相对偏倚小于 2 0 % ;分别为13 7% ,- 13 9%和 - 19 2 %。在应用校准品后 ,多数项目测定结果的变异系数 (CV % )得到不同程度的改善 ,ALT由 10 %~ 4 4 %下降至 8%~ 4 2 % ,LD由 16 %~ 39%下降至 8%~ 11%。结论 我国临床实验室对血清ALT、AST、AMY和LD的测定结果有较好的向国际标准溯源性 ;使用酶校准品可改善不同分析系统间测定结果的一致性。

Objective To determine the relative bias of T lymphocyte subsets percentages and absolute counts in patients with AIDS detected by two methods.Methods T lymphocyte subsets percentages and absolute counts in 60 patients with AIDS were analysed by Multi TEST automated cell count in flow cytometry and classic count.The values obtained with both methods were compared by Linear regression and paired Student t tests.The coefficient of correlation and the bias for absolute CD +_4 T cells were calculated.Results...

Objective To determine the relative bias of T lymphocyte subsets percentages and absolute counts in patients with AIDS detected by two methods.Methods T lymphocyte subsets percentages and absolute counts in 60 patients with AIDS were analysed by Multi TEST automated cell count in flow cytometry and classic count.The values obtained with both methods were compared by Linear regression and paired Student t tests.The coefficient of correlation and the bias for absolute CD +_4 T cells were calculated.Results Statistically similar CD +_3 percentage were obtained with two methods ( P >0.05).But the difference for CD +_4/CD +_8 ratio,CD +_3CD +_4,CD +_3CD +_8 percentages and absolute counts,lymphocyte and CD +_3 count reached statistical significance( P <0.01).The bias for absolute CD +_4T cells between two methods were 32.5%,15.8% and 5.5% at 200,500 and 1 000 cells per microliter respectively.Conclusion There was not a good agreement between the methods,the bias for absolute CD +_4 T cells goes up when the number of CD +_4 T cells is decreased.

目的 比较流式细胞仪 Multi TEST自动计数法和传统方法检测艾滋病患者外周血中 T细胞亚群百分率和绝对值的差异。方法 选择 6 0份艾滋病患者的外周全血 ,分别用两种方法测定标本中 T细胞亚群的百分率和绝对值 ,将同一标本取得的两个结果进行线性回归和配对 t检验 ,并对 CD+ 4T细胞绝对计数作进一步分析 ,计算其线性方程 ,进行偏倚估计。结果 两种方法测得的 CD+ 3 细胞的百分率差异无显著性 (P>0 .0 5 ) ,但 CD+ 4/ CD+ 8比值、CD+ 3 CD+ 4、CD+ 3 CD+ 8细胞的百分率和绝对值及淋巴细胞和 CD+ 3 细胞绝对值差异有非常显著意义 (P<0 .0 1 )。CD+ 4T细胞绝对计数的预期相对偏倚在 CD+ 4T细胞为 2 0 0个/μl时是 3 2 .5 % ,5 0 0个 /μl时是 1 5 .8% ,1 0 0 0个 /μl时是 5 .5 %。结论 两种方法测定的结果不一致 ,CD+ 4T细胞计数的相对偏倚随 CD+ 4T细胞数量降低而增加。

 
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