Naser Ahmadi
A5046145551- Diabetes, Cardiovascular Risks, and Lipoproteins
- Blood Pressure and Hypertension Studies
- Global Public Health Policies and Epidemiology
- Obesity, Physical Activity, Diet
- Health Promotion and Cardiovascular Prevention
- Healthcare Systems and Reforms
- Nutritional Studies and Diet
- Global Cancer Incidence and Screening
- Health Systems, Economic Evaluations, Quality of Life
- Chronic Disease Management Strategies
- Topic Modeling
- Sodium Intake and Health
- Global Health Care Issues
- Birth, Development, and Health
- Smoking Behavior and Cessation
- Traffic and Road Safety
- Healthcare Policy and Management
- Semantic Web and Ontologies
- Natural Language Processing Techniques
- Lipoproteins and Cardiovascular Health
- Advanced Graph Neural Networks
- Diabetes Management and Education
- COVID-19 Clinical Research Studies
- Health and Well-being Studies
- Data Quality and Management
Tehran University of Medical Sciences
2019-2025
Non-Communicable Diseases Research Center
2020-2023
Jahrom University of Medical Sciences
2020-2023
EURECOM
2019-2022
Center for Non-Communicable Diseases
2021
Shahid Beheshti University
2020
Shahid Beheshti University of Medical Sciences
2019
University of California, Los Angeles
2016
Cedars-Sinai Medical Center
2014
University of British Columbia
2013
Hypertension can be detected at the primary health-care level and low-cost treatments effectively control hypertension. We aimed to measure prevalence of hypertension progress in its detection, treatment, from 1990 2019 for 200 countries territories.
<h2>Summary</h2><h3>Background</h3> Underweight and obesity are associated with adverse health outcomes throughout the life course. We estimated individual combined prevalence of underweight or thinness obesity, their changes, from 1990 to 2022 for adults school-aged children adolescents in 200 countries territories. <h3>Methods</h3> used data 3663 population-based studies 222 million participants that measured height weight representative samples general population. a Bayesian hierarchical...
Abstract Body-mass index (BMI) has increased steadily in most countries parallel with a rise the proportion of population who live cities 1,2 . This led to widely reported view that urbanization is one important drivers global obesity 3–6 Here we use 2,009 population-based studies, measurements height and weight more than 112 million adults, report national, regional trends mean BMI segregated by place residence (a rural or urban area) from 1985 2017. We show that, contrary dominant...
BackgroundComparable global data on health and nutrition of school-aged children adolescents are scarce. We aimed to estimate age trajectories time trends in mean height body-mass index (BMI), which measures weight gain beyond what is expected from gain, for adolescents.MethodsFor this pooled analysis, we used a database cardiometabolic risk factors collated by the Non-Communicable Disease Risk Factor Collaboration. applied Bayesian hierarchical model 1985 2019 BMI 1-year groups ages 5–19...
Abstract High blood cholesterol is typically considered a feature of wealthy western countries 1,2 . However, dietary and behavioural determinants are changing rapidly throughout the world 3 using lipid-lowering medications at varying rates. These changes can have distinct effects on levels high-density lipoprotein (HDL) non-HDL cholesterol, which different human health 4,5 trends HDL over time not been previously reported in global analysis. Here we pooled 1,127 population-based studies...
Diabetes can be detected at the primary health-care level, and effective treatments lower risk of complications. There are insufficient data on coverage treatment for diabetes how it has changed. We estimated trends from 1990 to 2022 in prevalence 200 countries territories.
Peptic ulcer disease (PUD) affects four million people worldwide annually and has an estimated lifetime prevalence of 5-10% in the general population. Worldwide, there are significant heterogeneities coping approaches healthcare systems with PUD prevention, diagnosis, treatment, follow-up. Quantifying benchmarking health systems' performance is crucial yet challenging to provide a clearer picture potential global inequities quality care. The objective this study was compare health-system...
Abstract Optimal growth and development in childhood adolescence is crucial for lifelong health well-being 1–6 . Here we used data from 2,325 population-based studies, with measurements of height weight 71 million participants, to report the body-mass index (BMI) children adolescents aged 5–19 years on basis rural urban place residence 200 countries territories 1990 2020. In 1990, residing cities were taller than their counterparts all but a few high-income countries. By 2020, advantage...
Abstract Fasting plasma glucose (FPG) and hemoglobin A1c (HbA1c) are both used to diagnose diabetes, but these measurements can identify different people as having diabetes. We data from 117 population-based studies quantified, in world regions, the prevalence of diagnosed whether those who were previously undiagnosed detected diabetes survey screening, had elevated FPG, HbA1c or both. developed prediction equations for estimating probability that a person without at specific level HbA1c,...
ou non, émanant des établissements d'enseignement et de recherche français étrangers, laboratoires publics privés.
Abstract Introduction COVID-19 clinical course, effective therapeutic regimen, and poor prognosis risk factors in pediatric cases are still under investigation no approved vaccinehas been introduced for them. Methods This cross-sectional study evaluated different aspect of infection hospitalized positive children (≺18 years oldwith laboratory confirmed infection, using the national registry all admitted from February 19 until November 13,2020, Iran. Results We 6610 children. Fifty-four...
Background: Regarding the growing burden of non-communicable diseases (NCDs) and exposure to their risk factors, continuous need for nationwide data, we aimed develop latest round STEPwise Approach NCD Risk Factor Surveillance (STEPS) survey in 2021 Iran, while COVID-19 pandemic was still present. Methods: In addition three main steps this survey, including questionnaires, physical measurements, laboratory assessments, adapted with situation caused by pandemic, adding various aspects study...
Background Insufficient physical activity (IPA) is a significant risk factor for various non-communicable diseases. The Iran action plan 20% reduction in IPA. Therefore, we aimed to describe the age and sex pattern of domains, IPA, intensity activity, sedentary behavior, their associates at Iran's national provincial levels 2021. Methods This study used data STEPwise Approach NCD Risk Factor Surveillance (STEPS) 2021 Iran. STEPS Global Physical Activity Questionnaire (GPAQ) version two...
Abstract Smoking is recognised as a critical public health priority due to its enormous and economic consequences. Constant monitoring of the effectiveness tobacco control programs calls for timely population-based data. This study reports national sub-national patterns in consumption among Iranian adults based on results from STEPwise approach chronic disease risk factor surveillance (STEPS) survey 2021. was performed through an analysis STEPS 2021 which had been conducted nationally...
Abstract Aims By 2030, we seek to reduce premature deaths from non-communicable diseases, including ischaemic heart disease (IHD), by one-third reach the sustainable development goal (SDG) target 3.4. We aimed investigate quality of care IHD across countries, genders, age groups, and time using Global Burden Diseases Study (GBD) 2017 estimates. Methods results did a principal component analysis on mortality incidence ratio, disability-adjusted life-years (DALYs) prevalence years life lost...
Breast cancer (BC), as the top neoplasm in prevalence and mortality females, imposes a heavy burden on health systems. Evaluation of quality care management patients with BC its responsible risk factors was aim this study.We retrieved epidemiologic data from Global Burden Disease (GBD) 1990-2019 database. Epidemiology were explored besides Quality Care Index (QCI) introduced before, to assess provided for various scales. Provided investigated by their impact years life lost lived disability...
One challenge in fact checking is the ability to improve transparency of decision. We present a method that uses reference information knowledge graphs (KGs) assess claims and explain its decisions. KGs contain formal representation with semantic descriptions entities their relationships. exploit such rich semantics produce interpretable explanations for output. As KG inevitably incomplete, we rely on logical rule discovery Web text mining gather evidence given claim. Uncertain rules facts...
Abstract Background We compared the prevalence, awareness, treatment, and control of hypertension in Iran based on two guidelines; 2017 ACC/AHA –with an aggressive blood pressure target 130/80 mmHg- commonly used JNC8 guideline cut-off 140/90 mmHg. shed light implications for population subgroups high-risk individuals who were eligible non-pharmacologic pharmacologic therapies. Methods Data was obtained from national STEPS 2016 study. Participants included 27,738 adults aged ≥25 years as a...
Tobacco smoking is a significant global public health challenge, responsible for 8 million deaths annually. This study aimed to analyze the age of initiation and its sociodemographic determinants among Iranian adults, based on data from 2021 STEPwise approach surveillance (STEPS) survey, inform targeted interventions. The analysis 27,874 adults revealed that average ages cigarette hookah were 22.2 years 24.9 years, respectively. Men typically began earlier than women, with 21.9 males 27.7...
Noncommunicable diseases (NCDs), particularly cardiovascular disease (CVD), are the leading cause of death worldwide, with hypercholesterolemia being a major risk factor for CVD. This study evaluated care cascade in Iran—including prevalence, diagnosis, treatment coverage, and effectiveness—using National Cholesterol Education Program Adult Treatment Panel III (NCEP-ATP III) guidelines. cross-sectional drew on data from 2021 Iran STEPS survey, which employed systematic cluster sampling...
Background COVID-19 has triggered an avalanche of research publications, the various aspects which need to be assessed. The objective this study is determine scientific community’s response patterns through a bibliometric analysis time-trends, global contribution, international collaboration, open-access provision, science domains focus, and behavior journals. Methods bibliographic records on literature were retrieved from both PubMed Scopus. period for searching was set November 1, 2019,...
Abstract The study aimed to estimate the prevalence of lipid abnormalities in Iranian adults by demographic characterization, geographical distribution, and associated risk factors using national sub-national representative samples STEPs 2021 survey Iran. In this population-based household survey, a total 18,119 individuals aged over 25 years provided blood for biochemical analysis. Dyslipidemia was defined presence at least one hypertriglyceridemia (≥ 150 mg/dL), hypercholesterolemia 200...
Abstract Kidney cancer (KC) is a prevalent worldwide. The incidence and mortality rates of KC have risen in recent decades. quality care provided to patients concern for public health. Considering the importance KC, this study, we aim assess burden disease, gender age disparities globally, regionally, nationally evaluate inequities care. 2019 Global Burden Disease study provides data on KC. secondary indices, including mortality-to-incidence ratio, disability-adjusted life years...
Abstract Background Hypertension (HTN) is rising worldwide. Accurate information about its prevalence, diagnosis, coverage, and control essential for policymakers to implement effective strategies. Method Data were gathered from the nationally representative Iran STEPs 2021 study. ANOVA- test chi-square used compare across groups. age-standardized. Multiple logistic regression with adjustments was performed. We also concentration index concerning wealth levels schooling years. Results When...