Results 1 to 10 of about 308,152 (267)

Interpreting Breast Cancer Survival Data by the Hazard Function: Remarkable Findings from Event Dynamics [PDF]

Medicina, 2020
The report addresses the role of the hazard function in the analysis of disease-free survival data in breast cancer. An investigation on local recurrences after mastectomy provided evidence that uninterrupted growth is inconsistent with clinical findings
Romano Demicheli, William Hrushesky, Michael Retsky, Elia Biganzoli   +3 more
doaj   +2 more sources

Hazard function theory for nonstationary natural hazards [PDF]

Natural Hazards and Earth System Sciences, 2016
Impact from natural hazards is a shared global problem that causes tremendous loss of life and property, economic cost, and damage to the environment.
L. K. Read, R. M. Vogel
doaj   +4 more sources

Determining the optimal time to report mortality after lobectomy for lung cancer: An analysis of the time-varying risk of deathCentral MessagePerspective

JTCVS Open, 2023
Objective: Surgical mortality has traditionally been assessed at arbitrary intervals out to 1 year, without an agreed optimum time point. The aim of our study was to investigate the time-varying risk of death after lobectomy to determine the optimum ...
Matthew Shiu Hang Wong, Aina Pons, BSc, PGCert, Paulo De Sousa, BSc, PgDip, RGN, Chiara Proli, MD, Simon Jordan, MB BCh, MD, FRCS, Sofina Begum, MB ChB, MSc, FRCS, Silviu Buderi, MB BCh, MSc, FRCSEd, Vladimir Anikin, MD, FRCS, Jonathan Finch, MBBS, FRCS, Nizar Asadi, MD, FRCS, Emma Beddow, MBBS, FRCS, Eric Lim, MB ChB, MD, MSc, FRCS   +11 more
doaj   +1 more source

Simulating time-to-event data under the Cox proportional hazards model: assessing the performance of the non-parametric Flexible Hazards Method

Frontiers in Applied Mathematics and Statistics, 2023
Numerous methods and approaches have been developed for generating time-to-event data from the Cox Proportional Hazards (CPH) model; however, they often require specification of a parametric distribution for the baseline hazard even though the CPH model ...
Jennifer L. Delzeit, Devin C. Koestler
doaj   +1 more source

Quantile Regression with a New Exponentiated Odd Log-Logistic Weibull Distribution

Mathematics, 2023
We define a new quantile regression model based on a reparameterized exponentiated odd log-logistic Weibull distribution, and obtain some of its structural properties.
Gabriela M. Rodrigues, Edwin M. M. Ortega, Gauss M. Cordeiro, Roberto Vila   +3 more
doaj   +1 more source

A New Sine Family of Generalized Distributions: Statistical Inference with Applications

Mathematical and Computational Applications, 2023
In this article, we extensively study a family of distributions using the trigonometric function. We add an extra parameter to the sine transformation family and name it the alpha-sine-G family of distributions.
SidAhmed Benchiha, Laxmi Prasad Sapkota, Aned Al Mutairi, Vijay Kumar, Rana H. Khashab, Ahmed M. Gemeay, Mohammed Elgarhy, Said G. Nassr   +7 more
doaj   +1 more source

Parametric Distributions for Survival and Reliability Analyses, a Review and Historical Sketch

Mathematics, 2022
During its 330 years of history, parametric distributions have been useful for survival and reliability analyses. In this paper, we comprehensively review the historical backgrounds and statistical properties of a number of parametric distributions used ...
Nanami Taketomi, Kazuki Yamamoto, Christophe Chesneau, Takeshi Emura   +3 more
doaj   +1 more source

SURVIVAL FUNCTION AND HAZARD FUNCTION ANALYSIS OF EXPONENTIAL DISTRIBUTION IN TYPE I CENSORED SURVIVAL DATA: A CASE STUDY OF BREAST CANCER PATIENTS

Barekeng, 2023
Breast cancer is the most common cancer in women and the leading cause of cancer-related death in Indonesia. Analysis of survival data is important for improving the treatment and care of breast cancer patients. This study aims to estimate the parameters,
Ardi Kurniawan, Anggara Teguh Previan, Zidni Ilmatun Nurrohmah   +2 more
doaj   +1 more source

Comparison of Multiple Hazard Rate Functions [PDF]

Biometrics, 2015
Summary Many robust tests have been proposed in the literature to compare two hazard rate functions, however, very few of them can be used in cases when there are multiple hazard rate functions to be compared. In this article, we propose an approach for detecting the difference among multiple hazard rate functions.
Chen, Zhongxue, Huang, Hanwen, Qiu, Peihua   +2 more
openaire   +3 more sources

Associated factors with unsuccessful tuberculosis treatment outcomes among tuberculosis/HIV coinfected patients with drug-resistant tuberculosis

International Journal of Mycobacteriology, 2018
Background: In Sub-Saharan Africa, HIV endemic has substantially contributed to the increasing tuberculosis (TB) incidence. The joint effect of the HIV and TB pestilences has confronted the feeble systems of healthcare in resource-limited countries ...
Adeboye Azeez, James Ndege, Ruffin Mutambayi   +2 more
doaj   +1 more source