Zahra Shayan
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View article: Joint Modeling of Zero-Inflated Longitudinal Count Data and Survival Outcomes with Cure Fraction
Joint Modeling of Zero-Inflated Longitudinal Count Data and Survival Outcomes with Cure Fraction Open
Background Longitudinal data with excess zeros and survival data with a cured fraction are common in medical research, often exhibiting interdependence that complicates analysis. Joint modeling of these data types can address this interdep…
View article: Evaluation of factors related to longitudinal CD4 count and the risk of death among HIV-infected patients using Bayesian joint models
Evaluation of factors related to longitudinal CD4 count and the risk of death among HIV-infected patients using Bayesian joint models Open
View article: The Persian Version of Constant-murley Score in Patients with Rotator Cuff Tears: Reliability and Validity.
The Persian Version of Constant-murley Score in Patients with Rotator Cuff Tears: Reliability and Validity. Open
The findings indicated that the Persian version of the CMS questionnaire was reliable (ICC=0.95) and valid (P<0.001) for the assessment of shoulder pain and functional status in the Southern Iranian population with rotator cuff tear disord…
View article: Gender Differences in Nurses' Knowledge, Practice, and Attitudes Towards Contact Isolation Precautions: A Measurement Invariance Study
Gender Differences in Nurses' Knowledge, Practice, and Attitudes Towards Contact Isolation Precautions: A Measurement Invariance Study Open
Background: Contact isolation precautions are essential for infection prevention and control in healthcare settings. Nurses play a critical role in implementing these precautions to prevent the spread of infectious diseases. Objectives: Th…
View article: Macular Sublayer Thickness in Healthy Iranian Children: An Optical Coherence Tomography Study from the Population-Based Shiraz Pediatric Eye Study
Macular Sublayer Thickness in Healthy Iranian Children: An Optical Coherence Tomography Study from the Population-Based Shiraz Pediatric Eye Study Open
Purpose: To establish normative values for macular sublayer thickness in healthy Iranian children using optical coherence tomography (OCT) and to assess the effects of age and gender. Methods: This study was part of the population-based Sh…
View article: Epidemiological and clinical characteristics of long COVID-19 among Iranians: A community-based study in southern Iran
Epidemiological and clinical characteristics of long COVID-19 among Iranians: A community-based study in southern Iran Open
View article: Investigating the tendency to use COVID-19 vaccine booster dose in Iran
Investigating the tendency to use COVID-19 vaccine booster dose in Iran Open
Introduction Vaccine hesitancy is recognized as a significant public health threats, characterized by delays, refusals, or reluctance to accept vaccinations despite their availability. This study, aimed to investigate the willingness of Ir…
View article: Prognostic significance of immunoscore related markers in bladder cancer
Prognostic significance of immunoscore related markers in bladder cancer Open
View article: Comparison of chest CT scan findings between COVID-19 and pulmonary contusion in trauma patients based on RSNA criteria: Established novel criteria for trauma victims
Comparison of chest CT scan findings between COVID-19 and pulmonary contusion in trauma patients based on RSNA criteria: Established novel criteria for trauma victims Open
View article: COVID-19 vaccination acceptance in Iran, a nationwide survey on factors associated with the willingness toward getting vaccinated
COVID-19 vaccination acceptance in Iran, a nationwide survey on factors associated with the willingness toward getting vaccinated Open
The odds of COVID-19 vaccination intent were higher three or more times among those with a greater belief in vaccine effectiveness, lower concerns about vaccine safety, and greater exposure to cues to vaccinate, including from doctors. Thi…
View article: Knowledge, Attitudes, and Practice Toward Isolation Precautions Amongst Nurses and Auxiliary Nurses in Nemazee Hospital, Shiraz, Iran
Knowledge, Attitudes, and Practice Toward Isolation Precautions Amongst Nurses and Auxiliary Nurses in Nemazee Hospital, Shiraz, Iran Open
Background: Understanding the factors influencing nurses’ compliance with infection prevention strategies can assist in reducing occupational infections. Objectives: We surveyed nurses and auxiliary nurses in Shiraz, Iran, to evaluate thei…
View article: The COVID-19 vaccination acceptance/hesitancy rate and its determinants among healthcare workers of 91 countries: A multicenter cross-sectional study
The COVID-19 vaccination acceptance/hesitancy rate and its determinants among healthcare workers of 91 countries: A multicenter cross-sectional study Open
The aim of this study was to investigate the COVID-19 vaccination acceptance rate and its determinants among healthcare workers in a multicenter study. This was a cross-sectional multi-center survey conducted from February 5 to April 29, 2…
View article: Prognostic Significance of Immunoscore Related Markers in Bladder Cancer
Prognostic Significance of Immunoscore Related Markers in Bladder Cancer Open
Background The prognostic relevance of the total and specific subpopulations of tumor-infiltrating lymphocytes (TILs) in cancer is now well-documented. In the present study, we investigated the relevance of CD3 + , CD8 + , CD45RO + , and F…
View article: Use of Penalized Count Regression to Determine Factors Affecting the Length of Stay of Trauma Patients in the Intensive Care Unit
Use of Penalized Count Regression to Determine Factors Affecting the Length of Stay of Trauma Patients in the Intensive Care Unit Open
Background: Trauma is considered an important issue in most countries. Identification of the factors affecting the length of stay (LOS) in the intensive care unit (ICU) plays a crucial role in controlling the costs and complications of pro…
View article: The impact of flipped learning in surgical education: A mixed-method study
The impact of flipped learning in surgical education: A mixed-method study Open
This study aims to investigate the effectiveness of flipped learning in surgical education in trauma. The participants were 15 first-year general surgery residents in Shiraz medical school. After completing a pre-test, the participants rec…
View article: Assessment of tuberculosis among male prisoners in Shiraz central prison, south of Iran.
Assessment of tuberculosis among male prisoners in Shiraz central prison, south of Iran. Open
Background: Prisons play an important role in the prevalence of Tuberculosis (TB) in a region. This study aimed to determine the situation of TB in high-risk male prisoners in Shiraz central prison of Fars province in southern Iran. Method…
View article: Establishment of a novel triage system for SARS-CoV-2 among trauma victims in trauma centers with limited facilities
Establishment of a novel triage system for SARS-CoV-2 among trauma victims in trauma centers with limited facilities Open
Objectives The triage of trauma patients with potential COVID-19 remains a major challenge given that a significant number of patients may be asymptomatic or pre-symptomatic. This study aimed to compare the specificity and sensitivity of a…
View article: A Machine Learning Approach to Assess Differential Item Functioning in Psychometric Questionnaires Using the Elastic Net Regularized Ordinal Logistic Regression in Small Sample Size Groups
A Machine Learning Approach to Assess Differential Item Functioning in Psychometric Questionnaires Using the Elastic Net Regularized Ordinal Logistic Regression in Small Sample Size Groups Open
Assessing differential item functioning (DIF) using the ordinal logistic regression (OLR) model highly depends on the asymptotic sampling distribution of the maximum likelihood (ML) estimators. The ML estimation method, which is often used…
View article: Flipped education may help in the education of junior general surgery residents in their trauma rotation; a mixed-method study
Flipped education may help in the education of junior general surgery residents in their trauma rotation; a mixed-method study Open
Introduction : This study aims to assess the effectiveness of flipped learning in trauma rotation of first-year general surgery residents. This method entails the use of books, podcasts, and movies prior to the discussion of the topics in …
View article: Face touching in the time of COVID-19 in Shiraz, Iran
Face touching in the time of COVID-19 in Shiraz, Iran Open
View article: Improved Kaplan-Meier Estimator in Survival Analysis Based on Partially Rank-Ordered Set Samples
Improved Kaplan-Meier Estimator in Survival Analysis Based on Partially Rank-Ordered Set Samples Open
This study presents a novel methodology to investigate the nonparametric estimation of a survival probability under random censoring time using the ranked observations from a Partially Rank-Ordered Set (PROS) sampling design and employs it…
View article: Investigation of the Effect of Bioptron Light in Preventing the Formation of Scars in Diabetic and Non-Diabetic Mice
Investigation of the Effect of Bioptron Light in Preventing the Formation of Scars in Diabetic and Non-Diabetic Mice Open
Investigation of the Effect of Bioptron Light in Preventing the Formation of Scars in Diabetic and Non-Diabetic Mice
View article: Factors Associated With Short-Term and Long-Term Survival in Patients Undergoing Hemodialysis Using Semi- Parametric Mixture Cure Models.
Factors Associated With Short-Term and Long-Term Survival in Patients Undergoing Hemodialysis Using Semi- Parametric Mixture Cure Models. Open
Using cure model survival analysis, it was found that factors affecting the proportion of the patients with long-term survival might be different from those affecting short-term survival.
View article: Factors Affecting COVID-19 Vaccination Intent among Iranians: covid-19 vaccination acceptance
Factors Affecting COVID-19 Vaccination Intent among Iranians: covid-19 vaccination acceptance Open
Purpose: It is critical to understand the attitude, beliefs, and intent of the public toward COVID-19 vaccination to ensure widespread uptake once a safe and effective vaccine is available.
Methods: A cross-sectional survey was conducte…
View article: Determinants of AIDS and non-AIDS related mortality among people living with HIV in Shiraz, southern Iran: a 20-year retrospective follow-up study
Determinants of AIDS and non-AIDS related mortality among people living with HIV in Shiraz, southern Iran: a 20-year retrospective follow-up study Open
View article: Evaluating Changes in Vital Signs of Multiple Trauma Patients with extremity or Pelvic Fracture after Resuscitation Based on Receiving or Not Receiving Intravenous Analgesics
Evaluating Changes in Vital Signs of Multiple Trauma Patients with extremity or Pelvic Fracture after Resuscitation Based on Receiving or Not Receiving Intravenous Analgesics Open
Introduction: Trauma is among the injuries associated with a high prevalence of pain and little treatment for it. Pain can change vital signs and especially cause tachycardia due to sympathetic activity. This can distort our assessment of …
View article: The accuracy of white blood cell count in the diagnosis of acute appendicitis using age-sex-adjusted receiver operating characteristic approach
The accuracy of white blood cell count in the diagnosis of acute appendicitis using age-sex-adjusted receiver operating characteristic approach Open
The accuracy of white blood cell count in the diagnosis of acute appendicitis using age-sex-adjusted receiver operating characteristic approach
View article: Prevalence of non-reporting of hospital medical errors in the Islamic Republic of Iran
Prevalence of non-reporting of hospital medical errors in the Islamic Republic of Iran Open
Concerns of legal entanglements and confidentiality issues were recognized as the main barriers to reporting medical errors.
View article: بررسی تغییرات علایم حیاتی مصدومان ترومای مولتیپل دچار شکستگی اندام و یا لگن پس از احیا با توجه به دریافت یا عدم دریافت مسکن وریدی
بررسی تغییرات علایم حیاتی مصدومان ترومای مولتیپل دچار شکستگی اندام و یا لگن پس از احیا با توجه به دریافت یا عدم دریافت مسکن وریدی Open
مقدمه: تروما از آسیب هایی است که با شیوع بالای درد و درمان کم آن همراه است. درد می تواند موجب تغییر علایم حیاتی و به ویژه تاکی کاردی ناشی از فعالیت سمپاتیک گردد. این امر می تواند ارزیابی ما را از شوک بیمار مختل کند، لذا مطالعه ی حاضر تاثیر…
View article: Effect of Renal Transplantation on Health-Related Quality of Life in Patients with End-Stage Renal Disease; A Quasi-Experimental Study
Effect of Renal Transplantation on Health-Related Quality of Life in Patients with End-Stage Renal Disease; A Quasi-Experimental Study Open
Background: Renal transplantation is one of the best modalities to lengthen the life expectancy of patients with end-stage renal disease (ESRD). However, no sufficient documents exist regarding the effects of renal transplantation on the h…