混杂因素

性别可能作为一个混杂因素，对包括ACE基因I/D多态性在内的诸多EH候选基因与EH的相关性研究的结论产生影响。

The gender factor , as a probable confounding factor , can affect many candidate gene studies of essential hypertension including ACE gene I / D polymorphism , and thus biases the conclusion .

目的：在冠心病危险因素的流行病研究中，年龄既是一个危险因素，又是最常见的混杂因素。

Objective : Not only years of age is a risk factor for the epidemic disease research of CHD , but also is a confounding factor .

而V－E抗脂质过氧化作用不明显，可能与混杂因素有关。

Increased anti-lipid-peroxidation of VE was not obvious , which may be due to various factors .

用Cox回归分析混杂因素进行分析。

Confounded factors were examined by Cox regression analysis .

他们发现，即使在调整了各种潜在的混杂因素后，在低血糖事件发生后两周内MI的风险仍有65%的增加。

They found a65 % increased odds of MI associated with hypoglycemia within the previous two weeks , even after adjustment for potential confounding factors .

应用1：1条件logistic回归进行单因素和多因素分析，排除混杂因素、逻辑分析和病因推断，寻找可能的危险因素。

Single variable and multivariate conditional logistic regression analysis were used to analyze risk factors . The confounding factors were excluded , and the risk factors were found by using logic analysis .

使用非条件logistic回归分析，调整可能的混杂因素，估计吸烟及环境烟草烟雾暴露对膀胱癌发生的比数比和95%可信区间。

Unconditional logistic regression models were used in the analysis to adjust potential confounding factors and to obtain maximum likelihood estimates of the odds ratios ( ORs ) and 95 % confidence intervals ( CIs ) .

在去除时间长期趋势、季节、气象等混杂因素的基础上，研究DMF污染与发病人数的暴露反应关系。

In removing the time trend , season , long-term weather confounding factors such as the basis , the number of the pollution and DMF exposure response relation .

基于广义相加模型的Poisson回归，运用自然立方样平滑函数，控制时间的长期变化趋势和季节性趋势、星期几效应、相对湿度等混杂因素，拟合时间序列回归模型。

For the time series regression , we fitted the Poisson generalized additive model , after adjustment for long-term and seasonal trends using natural cubic smooth splines , day of week , and relative humidity .

Logistic回归分析结果表明，在控制了年龄、父母高血压史和体重指数等混杂因素后，累积噪声暴露量是高血压发病的危险因素，文化程度高是高血压的保护因素。

The result of Logistic regression analysis by adjusting age , history of hypertension in parents and body weight index showed that accumulative noise dose level was risk factor , but the level of education was a protective factor of hypertension .

对生长迟缓、低体重、消瘦的影响因素进行单因素X~2分析和多因素非条件Logistic回归分析，在排除可能的混杂因素后，探讨H.pylori感染是否仍为影响学龄前儿童体格生长的独立因素。

The univariate x2 analysis and unconditional multiple logistic regression were performed to identify the risk factors of stunting , underweight and wasting , and the effect of H.pylori infection on growth among preschool children after controlling the possible confounding bias .

控制相关混杂因素进行分层分析和Logistic回归分析发现，全身性肥胖和中心性肥胖与IGR和DM的患病均密切相关，而中心性肥胖与DM患病的关系强于全身性肥胖。

Controlling the influential factors by stratified analysis and Logistic regression analysis , the results show that both systemic obesity and central obesity are closely related with IGR and DM , but there is more closely relationship between central obesity and DM .

按性别分层，分别进行S447X突变与甘油三酯（TG）、高密度脂蛋白（HDL）、收缩压（SBP）、舒张压（DBP）及其异常之间的单因素和控制混杂因素后的多因素关联分析。

Stratified by gender , the associations of S447X polymorphism with the serum lipids ( TG , HDL ), blood pressures ( SBP , DBP ) and their abnormalities were analyzed by univariate and multivariate methods .

本研究的局限性包括对饮食和URTI回忆的依赖、由于数据收集的限制所可能造成的对暴露的错误分类，以及可能残留的混杂因素。

Limitations of this study include reliance on recall of diet and URTI , possible misclassification of exposure because of the timing of data collection , and possible residual confounding .

偏相关分析结果显示，在控制了接尘年限和累积吸烟量等混杂因素的影响后，石棉肺期别与FVC、FEV1和FEV1/FVC%呈显著负相关，与Kco呈显著正相关（P<0·05）；

The partial correlation analysis revealed , after controlling the confounding variables such as pack-year of smoking , duration of asbestos exposure etc. , the category of asbestosis showed negative correlation with FVC , FEV_1 , FEV_1 / FVC % and positive correlation with Kco ( P < 0.05 ) .

相关性分析：经过排除了混杂因素后，血清载脂蛋白A仍然是阿尔茨海默病发病的危险因素；

Serum apolipoprotein A was a risk factor for Alzheimer disease ;

为排除混杂因素的影响，作者还对血清铜据不同的分层特征进行了分层分析。

To control confounding factors , stratified analysis for serum Cu was made .

结论性别可能是混杂因素；

CONCLUSION Sex is a bias factor for myopia .

其中混杂因素如时间、温度用平滑样条函数进行控制。

Using smoothing spline to control the confounding factors such as time , temperature .

关于新药临床试验中控制混杂因素的几点意见

Strategies to control confounding factors in clinical trials

在排除了潜在的混杂因素或已知的肺结核的危险因素后，这种相关性依然持续存在。

This association persisted after controlling for potential confounders or excluding individuals with known tuberculosis risk factors .

结果表明，工种、工龄是计算粗患病率时的主要混杂因素。

Results showed that working jobs and seniority were the major confounding factors to the prevalences calculation .

为消除混杂因素的影响，试验组、对照组各项干预措施均统一施加。

In order to eliminate influences of farraginous factors , uniform interpose steps should be exerted on these two groups .

所有这些研究都受到“混杂因素”的困扰，也就是说，他们必须考虑到人群之间的某些差异。

All research like this is bedeviled by " confounders " - differences between populations that must be accounted for .

去处混杂因素后，没有发现勃起功能与激素或者激素结合蛋白之间的联系。

After adjusting for potential confounders , no association was seen between erectile function and bioavailable testosterone or sex-hormone binding globulin .

控制了混杂因素后，工作满意感差、躯体不适多、抑郁症是高血压的危险因素。

After adjusted for the confusion factors , job satisfaction , depression and physical anxiety were the risk factors for hypertension .

他们进一步指出现在还没有可靠的数据，还不足以解释这些混杂因素。

They further point out that no adherence data were available , and the ability to account for confounders was limited .

调整潜在的混杂因素后，服用罗格列酮的病人比服用匹格列酮的病人的死亡率高15%，心衰风险高13%。

Adjusting for potential confounding factors , individuals on rosiglitazone had15 % higher rate of death and13 % higher risk of heart failure .

而最后一种可能，叫做混杂因素，因为它模糊我们找到真正原因的能力。

And the last possibility is what is known as confounding , because it confounds our ability to figure out what 's going on .

有些混杂因素相当简单（老年人和吸烟者自然更容易得癌症），不过，在统计学上对此也往往留有校正的余地。

Some are fairly easy ( older people and smokers naturally get more cancer ) , but there is always some statistical wiggle room .