Number of words: 2795 (excluding summary, references and tables) 2 SUMMARY This paper discusses techniques to generate survival times for simulation studies regarding Cox proportional hazards models. In linear regression models, the response variable is directly connected with the considered covariates, the regression coefficients and the simulated random errors. Thus, the response variable can...

inflammatory basis in pathopoiesis of coronary artery disease (cad) have been demonstrated in recent decades. elevated c-reactive protein (crp) and leukocytosis were associated with an elevated risk   for acute coronary syndrome (acs). to evaluate the relationship between quantitative crp and cardiac troponin i in conjunction with white blood cell (wbc) count and 30 days outcomes and treatment ...

Skewed data is the main issue in statistical models in healthcare costs. Data transformation is a conventional method to decrease skewness, but there are some disadvantages. Some recent studies have employed generalized linear models (GLMs) and Cox proportional hazard regression as alternative estimators. The aim of this study was to investigate how well these alternative estimators perform in ...

There are several statistical methods for time-to-event analysis, among which is the Cox proportional hazards model that is most commonly used. However, when the absolute change in risk, instead of the risk ratio, is of primary interest or when the proportional hazard assumption for the Cox proportional hazards model is violated, an additive hazard regression model may be more appropriate. In t...

BACKGROUND The aim of this study was to predict the survival rate of Iranian gastric cancer patients using the Cox proportional hazard and artificial neural network models as well as comparing the ability of these approaches in predicting the survival of these patients. METHODS In this historical cohort study, the data gathered from 436 registered gastric cancer patients who have had surgery ...

Pandemi berdampak pada segala aspek kehidupan, salah satunya yaitu perekonomian yang mana mampu mempengaruhi keputusan investor dalam berinvestasi di pasar modal atau Bursa Efek Indonesia (BEI). Terdapat banyak indeks saham BEI, LQ45. Indeks LQ45 merupakan kumpulan 45 emiten terbaik dengan likuiditas tinggi dan kapitalisasi besar serta fundamental perusahaan baik. Fundamental ini mengacu perfor...