OBJECTIVES The goal of this report is to present an individual patient's survival estimation curve using the each institution's survival data after Cox proportional hazard analysis. METHODS The program was developed in three parts: input of basic data from Cox proportional hazard analysis, input of individual patient's covariates, and presentation of individual patient's survival curve. In th...

Different approaches for predicting genetic merit of piglet preweaning survival were compared using proportional hazard, threshold (TM), and sequential threshold (STM) models. Data were from 13,924 crossbred piglets (1,347 litters), born from 2000 to 2006, and originated by mating 189 Large White C21 Gorzagri boars to 328 Large White-derived crossbred sows. A frailty proportional hazard model w...

BACKGROUND AND AIMS We investigated the influence of baseline characteristics of patients with hepatocellular carcinoma (HCC) on prognosis and developed a multivariate Cox model predicting survival. All patients were from Central Europe. METHODS All 245 patients seen at the Department of Gastroenterology and Hepatology at the University of Vienna, Austria, from July 1991 to March 1998 were in...

This study aims to determine the model of Acute Myocardial Infarction using Weibull Regression and Cox Proportional Hazard methods factors that significantly influence length time for recovery acute myocardial infarction patients. The results this indicate patients are age, onset, number secondary diagnoses duration pain. Based on AIC value, regression is best because value smaller, namely 292....

PURPOSE In advanced prostate cancer, malignant cells generally tend to spread into the bone, and metastasis into nonregional lymph nodes (NRLNs) at the time of initial diagnosis is relatively rare. We investigated the prognostic significance of NRLN metastasis in patients receiving hormonal therapy and chemotherapy. MATERIALS AND METHODS From February 2005 to August 2011, we identified 105 pa...

To the Editor: Recently, Hirai et al reported a 40-year follow-up study on the effect of blood pressure on mortality by stroke or cardiovascular disease (CVD).1 The study group continuously had these events checked, mainly by official death certificates. I think that the numbers of events is satisfactory for Cox proportional hazard regression analysis, but some additional information would supp...