Cox proportional hazards model
False Selection Rate Methods in the Cox Proportional Hazards Model
... We wrote SAS programs (Software SAS version 9.1) to implement the first five meth- ods. The other seven methods are computed in MATLAB (Software MATLAB version 7.0), using programs received from Runze Li on September 9, ...
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Modeling Time-to- Recovery of Adult Diabetic Patients Using Cox-Proportional Hazards Model
... to model time-to-first recovery of adult diabetic patients using Cox Proportional Hazards ...variable. Cox Proportional Hazard model were ...
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Reasons why osteoarthritis predicts mortality: path analysis within a Cox proportional hazards model
... a cox proportional hazards analysis determined the total effect (te) of Oa on mortality after adjustment for potential ...the cox model, path analysis was used to decompose the te to ...
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Prognostic Factors in Recurrent Glioblastoma Multiforme and Anaplastic Astrocytoma Treated with Selective Intra arterial Chemotherapy
... have been described in numerous series of intra- arterial chemotherapy (12, 13, 17, 22), probably be- cause such patients are more appropriate candidates for an experimental and invasive treatment option. In our ...
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The relationship between high-dose corticosteroid treatment and mortality in acute respiratory distress syndrome: a retrospective and observational study using a nationwide administrative database in Japan
... A systemic inflammatory response is closely associated with the development of ARDS. Thus, anti-inflammatory corticosteroid treatment may be a logical choice for ARDS [6–8]. However, according to previous studies and ...
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Natural Course of Dissecting Vertebrobasilar Artery Aneurysms without Stroke
... This study has several limitations. First, the radiologic examina- tion findings were not the same for all patients. The diameter of the aneurysm was different between CTA and MRA. Neverthe- less, the goal of this study ...
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Original Article Expression profiling and clinicopathological significance of DNA methyltransferase 1, 3A and 3B in sporadic human renal cell carcinoma
... the Cox proportional hazards model showed that the expression of DNMT1 was an independent prognos- tic factor for over all sur- vival ...
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Quality of life after the initial treatments of non-small cell lung cancer: a persistent predictor for patients’ survival
... the Cox proportional hazards model to identify HRQoL dimensions and patient charac- teristics related to survival: age (as a continuous variable), sex, cancer stage, and ...final model ...
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Tissue microRNA-126 expression level predicts outcome in human osteosarcoma
... multivariate Cox proportional hazards model analysis showed that miR-126 expression was independently associated with overall survival of patients with osteosarcoma (HR = ...
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RETRACTED ARTICLE: Down-regulated MicroRNA 148b expression as predictive biomarker and its prognostic significance associated with clinicopathological features in non-small-cell lung cancer patients
... a Cox proportional hazards model between prognosis factors indicated that low miR-148b expression was independently linked to poor survival of patients with NSCLC, suggesting that miR- 148b ...
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A STUDY OF THE SLOPE OF COX PROPORTIONAL HAZARD AND WEIBULL MODELS: SIMULATED AND REAL LIFE DATA APPROACH
... the Cox proportion hazards model and the maximum likelihood estimates of the Weibull model perform almost similarly, but when the shape parameter is known, it far out-performs the Cox ...
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Cancer survival analysis using semi-supervised learning method based on Cox and AFT models with L1/2 regularization
... Both Cox proportional hazards model (Cox) and accelerated failure time model (AFT) have been widely adopted to the high risk and low risk classification or survival time ...
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A Simple Stochastic Stomach Cancer Model with Application
... used Cox regression model and compared it with weibull, exponential and lognormal models to evaluate prognostic factors affecting survival of patients with stomach ...best model. Results of the data ...
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Online Full Text
... regression model of WC could be transported to an earlier sample, a cohort study using estimates of WC would be ...the model but also the relevant parameter estimates can be transported without ...
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Survival Analysis in LGL Modelling for Retail Mortgage Portfolios
... Extended Cox model, we tested the effects of time-dependent explanatory variables on the baseline survival ...Extended Cox models based on the same two segments of the retail mortgage portfolio as in ...
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Nonfatal Stroke and All-Cause Mortality among Community-Dwelling Older Adults Living in Rural Ecuador: A Population-Based, Prospective Study.
... In this population of community‑dwelling older adults living in rural Ecuador, history of a nonfatal stroke and increasing age were independently related to increased mortality. Conceivably, the importance of these ...
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Performance status dynamics during treatment with <em>nab</em>-paclitaxel plus gemcitabine versus gemcitabine alone for metastatic pancreatic cancer
... A Cox proportional hazards model was used to estimate the relationship between the following variables and time until definitive KPS deterioration: treatment arm (nab-paclitaxel plus ...
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Original Article Decreased expression of forkhead box O3 in human hepatocellular carcinoma and its prognostic significance
... a Cox proportional hazards model con- firmed that low FoxO3 expression was an inde- pendent predictor of poor overall survival in patients with HCC (Table 2, ...
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Analysis of Influencing Factors on Survival Time of Patients with Heart Failure
... regression model has become the most common used proce- dure for modeling the relationship of covariates to a survival or other censored outcome since this model was proposed by ...D.R. Cox in 1972 ...
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Serum protein profiling using an aptamer array predicts clinical outcomes of stage IIA colon cancer: A leave-one-out cross- validation
... Methods: Bloods samples were collected from 227 consecutive patients with pathologic T3N0M0 (stage IIA) colon cancer. We incubated 1,149 serum molecule- binding aptamer pools of clinical significance with serum from ...
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