Epidemiology of malignant gliomas in Iran: first report of Iranian National Population-based Cancer Registry, 2009-2017.

Objective: Malignant gliomas constitute the most common type of primary malignant brain tumors. Most previous studies have evaluated the epidemiology of malignant gliomas in developed countries. Hence, there is a lack of evidence in this regard from developing countries.

COVID-19 in pregnancy: A cross-sectional study on clinical features, disease severity, and health outcome.

Assessing the impact of coronavirus disease 2019 (COVID-19) reveals unique challenges for pregnant women, who experience distinct clinical manifestations and health outcomes compared to their non-pregnant counterparts. We aimed to evaluate the clinical features, disease severity, and health outcomes of COVID-19 in pregnant women and compare them to those of non pregnant women. In this population-based study, we included all women diagnosed with COVID-19 across the province of Tehran during the first two years of the epidemic.

The Association of Acute Watery Diarrhea in Iranian Pilgrims of Iraq with Cholera Cases in Iranians.

Background: Despite the advances in the control of infectious diseases like cholera, they can potentially cause epidemics, especially in mass gathering events. One of the most important countries on the walking way of the religious event is Iran, which requires health system preparedness. The aim of this study was to predict the cholera epidemic in Iran by using the syndromic surveillance system of Iranian pilgrims in Iraq.

The impact of COVID-19 on national program of colorectal cancer screening in Tehran, Iran: a multicenter study.

Background: The COVID-19 pandemic has affected all aspects of the healthcare system, including prevention, treatment, rehabilitation of diseases and health education; access to essential therapies; allocation of finance & facilities to health issues, and governance of diseases, including COVID-19 and other diseases. Consequently, the burden of COVID-19 was not only attributable to the multiorgan involvement and detailed presentation of the disease but also to the inadequate management of other diseases resulting from the exclusive allocation of resources and medical personnel to the pandemic crisis. Over the mentioned period, one observed deficiency was the lack of public and official favor for conventional screening protocols.

Gastric Cancer Risk in Association with Underweight, Overweight, and Obesity: A Systematic Review and Meta-Analysis.

This study aimed to investigate the risk of gastric cancer (GC) in abnormal body mass index (BMI) groups. A systematic search was carried out on Embase, PubMed/Medline, and Scopus from January 2000 to January 2023. The pooled risk ratio (RR) with a 95% confidence interval (CI) was assessed using a random-effect model.

Five consecutive epidemiological waves of COVID-19: a population-based cross-sectional study on characteristics, policies, and health outcome.

Background: This study was conducted with the intension of providing a more detailed view about the dynamics of COVID-19 pandemic. To this aim, characteristics, implemented public health measures, and health outcome of COVID-19 patients during five consecutive waves of the disease were assessed.

Methods: This study was a population-based cross-sectional analysis of data on adult patients who were diagnosed with COVID-19 during five waves of the disease in Iran.

Migrant Health and COVID-19 Pandemic: A Cross-sectional Study of Characteristics, Clinical Features, and Health Outcome from Iran.

Background: As the pandemic unfolds, major concerns remain with those in disadvantaged positions who may be disproportionately affected. This paper aimed to present the characteristics of COVID-19 immigrant patients and investigate whether they were disproportionately affected by COVID-19 pandemic.

Methods: A cross-sectional study was performed using data on 589,146 patients diagnosed with COVID-19 in Iran.

Urban and sub-urban disparities in health outcomes among patients with COVID-19; a cross-sectional study of 234 418 patients in Iran.

Background: It remains crucial to understand socio-demographic determinants of COVID-19 infection to improve access to care and recovery rates from the disease. This study aimed to investigate the urban and sub-urban disparities associated with COVID-19 in patients visiting healthcare facilities in the province of Tehran, Iran.

Methods: Data from 234 418 patients who were diagnosed with COVID-19 infection from March 2020 to March 2021 in the province of Tehran were used in this analysis.

Efficacy of Platelet-Rich Plasma as an Adjuvant Therapy to Endoscopic Sinus Surgery in Anosmia Patients with Sinonasal Polyposis: A Randomized Controlled Clinical Trial.

Treatment of patients with anosmia is a major therapeutic challenge. The present study evaluated the efficacy of platelet-rich plasma (PRP) in the treatment of anosmia in patients with sinonasal polyposis. In the present clinical trial, atotal of 48 patients with sinonasal polyposis with theIran Smell Identification Test (I-SIT) score of <6 who completed the medical treatment and were observed 3 months after the sinus surgery were included and randomly divided in to 2groups.

Virulence genes expression profiling of different Shigella flexneri serotypes in response to sub-inhibitory concentrations of azithromycin and ciprofloxacin.

Background: Shigellosis is a self-limiting disease that antibiotic therapy could decrease its complications and duration. However, sublethal levels of antibiotics, may lead to alteration in disease state, besides its role in the emergence of resistant variants. To understand this link, we investigated diversity of Shigella serogroups in children with diarrhea, diversity of S.

Global, regional, and national burden of Guillain-Barré syndrome and its underlying causes from 1990 to 2019.

Background: This article presents the first detailed analysis of the prevalence and disability burden of Guillain-Barré syndrome (GBS) from 1990 to 2019 by cause, age, sex, and Socio-demographic Index (SDI) in 204 countries and territories.

Methods: Data from the Global Burden of Diseases Study (GBD) 2019 were used. GBD 2019 modelled the prevalence of GBS using hospital and claims data.

Disparities in Obesity Prevalence in Iranian Adults: Cross-Sectional Study Using Data from the 2016 STEPS Survey.

Introduction: This paper outlines the prevalence, disparities, and social determinants of preobesity and obesity in Iranian adults.

Methods: Data on 28,321 adults who participated in the 2016 National Survey of the Risk Factors of Noncommunicable Diseases (STEPS) survey were analyzed. The body mass index (BMI) was calculated from physically measured height and weight.

Determinants of Adherence to Diabetes Screening in Iranian Adults With a Positive Family History of Diabetes.

Objectives: Insufficient evidence exists regarding factors that affect screening adherence among people with a family history of diabetes, who comprise roughly half of all patients with diabetes. Therefore, we aimed to identify the determinants of diabetes screening adherence in adults with a family history of diabetes who had not yet been diagnosed with diabetes.

Methods: This cross-sectional study was conducted at selected urban primary healthcare facilities in Tehran, Iran.

Sociodemographic determinants and clinical risk factors associated with COVID-19 severity: a cross-sectional analysis of over 200,000 patients in Tehran, Iran.

Background: Defining socio-demographic factors, clinical presentations and underlying diseases associated with COVID-19 severity could be helpful in its management. This study aimed to further clarify the determinants and clinical risk factors of the disease severity in patients infected with COVID-19.

Methods: A multi-centre descriptive study on all patients who have been diagnosed with COVID-19 in the province of Tehran from March 2020 up to Dec 2020 was conducted.

Burden of Tracheal, Bronchus, and Lung Cancer and Its Attributable Risk Factors in 204 Countries and Territories, 1990 to 2019.

Introduction: Understanding trends in the annual incidence, mortality, and disability-adjusted life-years (DALYs) for tracheal, bronchus, and lung (TBL) cancer globally is important to enable appropriate targeting of resources for prevention, clinical practice improvement, and research. The aim of this study was to determine the global, regional, and national burdens of TBL cancer in 204 countries and territories from 1990 to 2019 by age, sex, and sociodemographic index.

Methods: Estimates were produced through various data inputs including the following: cancer registries (n = 5318), vital registration (n = 22,553), vital registration-sample (n = 825), and verbal autopsies (n = 516).

Current Tobacco Smoking Prevalence Among Iranian Population: A Closer Look at the STEPS Surveys.

To determine the current tobacco smoking prevalence among Iranian adults, its geographical distribution in 2011, 2016, and time trend during 2004-2016. We conducted a pooled analysis of the published reports of 2004, 2007, 2008, 2009, and the data of 2011 and 2016 of the STEPwise approach to chronic disease risk-factor surveillance (STEPS) surveys. The prevalence of current tobacco smoking and current daily cigarette smoking in 2016 was 14.

Disparities in cervical cancer screening participation in Iran: a cross-sectional analysis of the 2016 nationwide STEPS survey.

Background: One of the most important concerns in every healthcare system is the elimination of disparities in health service utilization and achievement of health equity. This study aimed to investigate the disparities in cervical cancer screening participation in Iran.

Methods: A cross-sectional study was conducted using data from the National Non-Communicable Risk Factors Survey in 2016 (STEPs 2016).

Correlation Between Low-Dose Chest Computed Tomography and RT-PCR Results for the Diagnosis of COVID-19: A Report of 27,824 Cases in Tehran, Iran.

Rationale And Objectives: Real-time polymerase chain reaction (RT-PCR) remains the gold standard for confirmation of Coronavirus Disease 2019 (COVID-19) despite having many disadvantages. Here, we investigated the diagnostic performance of chest computed tomography (CT) as an alternative to RT-PCR in patients with clinical suspicion of COVID-19 infection.

Methods: In this descriptive cross-sectional study, 27,824 patients with clinical suspicion of COVID-19 infection who underwent unenhanced low-dose chest CT from 20 February, 2020 to 21 May, 2020 were evaluated.

Bullying and Victimization among Students Bears Relationship with Gender and Emotional and Behavioral Problems.

Bullying and victimization are common and serious problems in schools resulting in development of emotional and behavioral disorders in adolescents. This study aimed at examining the prevalence of bullying behavior and some of its associated factors among students. This was a cross sectional analytic study involving junior high schoolers in grades seven, eight and nine.

Does intrauterine saline infusion by intrauterine insemination (IUI) catheter as endometrial injury during IVF cycles improve pregnancy outcomes among patients with recurrent implantation failure?: An RCT.

Background: Recurrent implantation failure is one of the most issues in IVF cycles. Some researchers found that beneficial effects of endometrial Scratching in women with recurrent implantation failure, while some authors demonstrated contrary results.

Objective: The present study aimed to investigate the effect of intrauterine.

Association Between Socioeconomic Status and Participation in Colonoscopy Screening Program in First Degree Relatives of Colorectal Cancer Patients.

Background: Approximately 15% to 25% of colorectal cancer (CRC) cases have positive family history for disease. Colonoscopy screening test is the best way for prevention and early diagnosis. Studies have found that first degree relatives (FDRs) with low socioeconomic status are less likely to participate in colonoscopy screening program.

Patients' Satisfaction with the Diabetes Control and Prevention Program in Tehran, Iran: A Cross Sectional Study.

Background: Although diabetes control and prevention program has been initiated in Tehran, Iran and five other large cities in the country since 2010, patients' satisfaction with the services provided by this program has not been evaluated yet. The aim of this study was to determine the patient satisfaction with this program in Tehran.

Methods: This cross-sectional study, were conducted in 15 primary health care centers in Tehran, Iran in 2013.

Effect of university policies on research productions: a scientometric study.

Background: This study aimed to assess the effect of new package of interventions on scientific productions rate in Shahid Beheshti University of Medical Sciences.

Methods: Through a health system research, we extracted policies from the strategic plan of the university and 10 interventions were developed to increase the scientific productions in terms of quality, quantity and commercialization and to develop infrastructure for research in health service provision and education. For evaluating the effectiveness of interventions, citation and publication indicators for individuals and schools were analyzed using descriptive statistics and t-test.

Risk of sudden cardiac death.

Background: The aim of this study was to determine characteristics of patients with sudden cardiac arrest (SCA) and/or sudden cardiac death (SCD). We need an effective risk stratification method for SCD in patients without low left ventricular ejection fraction (LVEF).

Methods: The study population of this cross-sectional study consisted of 241 patients with SCA or SCD who were admitted to an academic hospital, in Tehran, Iran, from 2011 through 2012.

The effect of oral evening primrose oil on menopausal hot flashes: a randomized clinical trial.

Purpose: Hot flashes are common experience for menopausal women, and for many, are severe enough to significantly compromise their overall sense of well being and quality of life. The aim of this study was to compare the efficacy of evening primrose with placebo in improvement of menopausal hot flashes.

Methods: In a 6-week randomized clinical trial, a total of 56 menopausal women aged 45-59 years were participated in this study.