Objective:We aimed to establish a scoring system to predict the risk of breast cancer-related lymphedema.Methods:From April 2017 to December 2018,533 patients who previously underwent surgery for breast cancer were en...Objective:We aimed to establish a scoring system to predict the risk of breast cancer-related lymphedema.Methods:From April 2017 to December 2018,533 patients who previously underwent surgery for breast cancer were enrolled in this cross-sectional study.Univariate analysis was performed to explore and define the risk factors.A scoring system was then established on the basis of odds ratio values in the regression analysis.Results:The additive scoring system values ranged from 6 to 22.The receiver operating characteristic(ROC)curve of this scoring system showed a sensitivity and specificity of 83.3%and 57.3%,respectively,to predict the risk of lymphedema at a cut-off of 15.5 points;the area under the curve was 0.736(95%confidence interval:0.662-0.811),with x2=5.134(P=0274)for the Hosmer-Lemeshow test.Conclusions:The predictive efficiency and accuracy of the scoring system were acceptable,and the system could be used to predict and screen groups at high risk for breast cancer-related lymphedema.展开更多
The stereo vision results from the interaction between geometrical optics and visual psychology.Large depth will bring discomforts for the results of ghosting and flicker.The relevance of the ratio of jumping out dept...The stereo vision results from the interaction between geometrical optics and visual psychology.Large depth will bring discomforts for the results of ghosting and flicker.The relevance of the ratio of jumping out depth(RJD)and electroencephalogram(EEG)gravity frequency(GF)was explored to re flect human health under di®erent three-dimensional(3D)depth information(mainly the negative disparity)displayed on a three-dimensional television(3D-TV)with shutter glasses.EEG was obtained from 10 volunteers when they were watching 3D film segments with di®erent negative disparities.The brain GF map shows that the depth information has a stronger in fluence on the frontal lobe than on the occipital lobe.For regression analysis,nonlinear curve fittings of GF to RJD in Fp1,F3,O2 and T5 channels were mainly performed when RJD ranged from 0 to 3.4,while linearfittings were performed in some special RJD ranges.It also confirms that RJD above 2.2 may lead to discomfort to human body.Finally,it suggests a suitable RJD range for people to watch from the objective method.The outcomes can be used as a guidance to decrease human discomforts induced by 3D production.展开更多
基金This study was supported by Nursing Research Grant of Peking University Health Science Center(BMU20160517).
文摘Objective:We aimed to establish a scoring system to predict the risk of breast cancer-related lymphedema.Methods:From April 2017 to December 2018,533 patients who previously underwent surgery for breast cancer were enrolled in this cross-sectional study.Univariate analysis was performed to explore and define the risk factors.A scoring system was then established on the basis of odds ratio values in the regression analysis.Results:The additive scoring system values ranged from 6 to 22.The receiver operating characteristic(ROC)curve of this scoring system showed a sensitivity and specificity of 83.3%and 57.3%,respectively,to predict the risk of lymphedema at a cut-off of 15.5 points;the area under the curve was 0.736(95%confidence interval:0.662-0.811),with x2=5.134(P=0274)for the Hosmer-Lemeshow test.Conclusions:The predictive efficiency and accuracy of the scoring system were acceptable,and the system could be used to predict and screen groups at high risk for breast cancer-related lymphedema.
基金This research was supported by the Nature Science Foundation of China(NSFC)(61171059&61075107)the twelfth"Five-Year Plan"National Key Technology R&D Program(2012BAI23B07)+1 种基金Funding of Jiangsu Innovation Program for Graduate Education (KYLX 0248)the Fundamental Research Funds for the Central Universities.
文摘The stereo vision results from the interaction between geometrical optics and visual psychology.Large depth will bring discomforts for the results of ghosting and flicker.The relevance of the ratio of jumping out depth(RJD)and electroencephalogram(EEG)gravity frequency(GF)was explored to re flect human health under di®erent three-dimensional(3D)depth information(mainly the negative disparity)displayed on a three-dimensional television(3D-TV)with shutter glasses.EEG was obtained from 10 volunteers when they were watching 3D film segments with di®erent negative disparities.The brain GF map shows that the depth information has a stronger in fluence on the frontal lobe than on the occipital lobe.For regression analysis,nonlinear curve fittings of GF to RJD in Fp1,F3,O2 and T5 channels were mainly performed when RJD ranged from 0 to 3.4,while linearfittings were performed in some special RJD ranges.It also confirms that RJD above 2.2 may lead to discomfort to human body.Finally,it suggests a suitable RJD range for people to watch from the objective method.The outcomes can be used as a guidance to decrease human discomforts induced by 3D production.
