Aliakbar Rasekhi
Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
[ 1 ] - Investigation factors affecting the first recurrence of coronary artery disease in patients undergone angioplasty using cox survival model
Background: The incidence of restenosis in patients suffering from coronary artery disease after undergoing angioplasty is of paramount importance. Accordingly, this study aimed to investigate factors affecting the time of the first incidence of restenosis in patients undergone angioplasty in the city of Zanjan, Iran. Methods: This retrospective cohort study was conducted on 421 patie...
[ 2 ] - تحلیل بقای بیماران مبتلا به سرطان پستان با استفاده از مدلهای شفایافته نا آمیخته وایبل و بتا وایبل پواسون
Background and Aim: Therapies for many of diseases especially cancers have been improved significantly in the recent year, so there have been an increased number of patients who do not experience mortality. In analysis of these disease, cured models is used instead of usual survival models. Weibull model and its generalized version beta Weibull Poisson (BWP), are flexible models in cure models ...
[ 3 ] - مدل لجیت تجمعی در بررسی مخاطرات اندومتریوز و شدت آن
Background: Endometriosis is one of the prevalent chronic diseases in women that causes infertility and other problems. Since severity of this disease is expressed in ordinal scale, the aim of this study is to analyze risk factors and progress of the disease by ordinal logistic regression and cumulative logit model. Methods: In this cross-sectional study, we studied infertile women that referr...
[ 4 ] - Adding New Mathematical Functions and Statistical Distributions in WinBUGS
WinBUGS is one of the usual softwares in computational Bayesian statistics, which is used to fit Baysian models easily. Although this software has usual mathematical functions and statistical distributions as built in functions, sometimes it is necessary to include other functions and distributions in computations which is done by some tricks and indirectly. By using WinBUGS developmen...
[ 5 ] - The Effect of Continuous Care Model on the Sleep Quality of the Elderly
Background: Aging is accompanied by the mitigation of sleep quality in the elderly, thereby affecting their physical and social dimensions and quality of life. However, studies have not addressed sleep problems in the elderly by means of a holistic approach, such as continuous care model (CCM). Aim: The aim of this study was to determine the effects of CC...
[ 6 ] - Effects of health literacy on Breastfeeding Duration among Primiparous Women Referring to Tehran Health Centers
Introduction The importance of the infant’s proper nutrition and the vital role of breastfeeding in the survival, growth, and development of the child are well known. Breastfeeding helps protect infants against some of the main causes of childhood mortality. This study aims to investigate the factors affecting breastfeeding duration in primiparous women referring to Tehran health centers. Mate...
[ 7 ] - Factors associated with exclusive breastfeeding among primiparous women
Introduction: Exclusive breastfeeding (EBF) is infant’s breast milk consumption without supplementation of any kind of food or drink. Nowadays, EBF has been considered as a key strategy for ensuring the growth and survival of the child. This study aims to investigate the factors affecting exclusive breastfeeding in primiparous women referring to Tehran health centers. Methods: In this analytica...
[ 8 ] - Simultaneous modeling of multiple recurrences in breast cancer patients
Introduction: Breast cancer is one of the most common recurrence cancers among women. There are several factors that can affect multiple recurrence of this disease. On the other hand, simultaneous examination of the types of relapses will make the results more accurate. The purpose of this study was to use a joint frailty model to model multiple recurrences of breast cancer patients. Materials ...
[ 9 ] - Determining the correlated factors of breast cancer recurrence by Poisson Beta-Weibull non- mixture cure model
Introduction: Therapies for many of diseases, especially cancer, have been improved significantly in the recent years, resulting in an increase in the number of patients who do not experience mortality. Therefore, the application of cure models is more suitable for survival analysis in this population than the usual survival models are. The aim of this study was to estimate the recurrence-free ...
[ 10 ] - Modeling In Vitro Fertilization Data Considering Multiple Outcomes Observed among Iranian Infertile Women
Objective Women undergoing IVF cycles should go successfully through multiple points during the procedure (i.e., implantation, clinical pregnancy, no spontaneous abortion and delivery) to achieve live births. On the other there is a need to consider previous reproductive outcomes and as well as the current cycle. In this study, data on multiple cycles and multiple points during the IVF cycle ar...
[ 11 ] - The relationship between the management of basic medication uses and stress, anxiety, and depression in patients with coronary artery disorders
Introduction : cardiovascular diseases have a high prevalence in the world and are considered one of the main causes of death. To reduce the prevalence and mortality of heart diseases, pharmacological and non-pharmacological measures are considered. Medicine is the main link in the treatment chain and its correct use is important. In the field of non-pharmacological measures, strategies to deal...
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