Mahfoud, Ziyad Riyad

Publications

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selected publications

Comparison of Surgical Site Infection Risk Between Warfarin, LMWH, and Aspirin for Venous Thromboprophylaxis in TKA or THA: A Systematic Review and Meta-Analysis. JBJS reviews. 2020 Academic Article GET IT
Correction to: Examining aptitude and barriers to evidence-based medicine among trainees at an ACGME-I accredited program. BMC medical education. 2020 Article GET IT
Examining aptitude and barriers to evidence-based medicine among trainees at an ACGME-I accredited program. BMC medical education. 2020 Academic Article GET IT
Faculty perceptions of student plagiarism and interventions to tackle it: a multiphase mixed-methods study in Qatar. BMC medical education. 2020 Academic Article GET IT
Prevalence and risk factors for diabetic neuropathy and painful diabetic neuropathy in primary and secondary healthcare in Qatar. Journal of diabetes investigation. 2020 Academic Article GET IT
Self-Reported Sleep and Exercise Patterns in Patients with Schizophrenia: a Cross-Sectional Comparative Study. International journal of behavioral medicine. 2020 Academic Article GET IT
Effect of treatment with exenatide and pioglitazone or basal-bolus insulin on diabetic neuropathy: a substudy of the Qatar Study. BMJ open diabetes research & care. 2020 Academic Article GET IT
Times cited: 3
Correction to: Self-Reported Sleep and Exercise Patterns in Patients with Schizophrenia: A Cross-Sectional Comparative Study. International journal of behavioral medicine. 2020 Article GET IT
Beta-blockers and Short-Term Cardiovascular Outcomes In Patients Hospitalized For Acute Coronary Syndrome and a Left Ventricular Ejection Fraction ≥40. Scientific reports. 2020 Academic Article GET IT
Prevalence and management of diabetic neuropathy in secondary care in Qatar. Diabetes/metabolism research and reviews. 2020 Academic Article GET IT
Times cited: 3
Beta-Blockers and Cardiovascular Outcomes in Acute Heart Failure with a History of Coronary Artery Disease and an Ejection Fraction ≥ 40. Current vascular pharmacology. 2020 Academic Article GET IT
Times cited: 1
Corneal Nerve and Brain Imaging in Mild Cognitive Impairment and Dementia. Journal of Alzheimer's disease : JAD. 2020 Academic Article GET IT
Effect of gender on childhood maltreatment in the state of Qatar: Retrospective study. Child abuse & neglect. 2019 Academic Article GET IT
Relationships between sleep patterns and metabolic profile in patients maintained on antipsychotics: a cross-sectional comparative study. Neuropsychiatric disease and treatment. 2019 Academic Article GET IT
Hypertension Contributes to Neuropathy in Patients With Type 1 Diabetes. American journal of hypertension. 2019 Academic Article GET IT
Times cited: 12
Cross-cultural adaptation of the Arabic Positive and Negative Syndrome Scale in schizophrenia: Qualitative analysis of a focus group. Transcultural psychiatry. 2019 Academic Article GET IT
Prevalence and risk factors for painful diabetic neuropathy in secondary healthcare in Qatar. Journal of diabetes investigation. 2019 Academic Article GET IT
Times cited: 8
Correction: Epidemiology and treatment patterns of rheumatoid arthritis in a large cohort of Arab patients. PloS one. 2019 Article GET IT
Times cited: 2
Association of corneal nerve fiber measures with cognitive function in dementia. Annals of clinical and translational neurology. 2019 Academic Article GET IT
Times cited: 12
Change in cardiac troponin T level after intravitreal anti-vascular endothelial growth factor treatment: Prospective pilot study. European journal of ophthalmology. 2019 Academic Article GET IT
Ethnicity-Based Inequality in Heat-Related Illness Is on the Rise in California. Wilderness & environmental medicine. 2019 Letter GET IT
Evaluation of an intensive education program on the treatment of tobacco-use disorder for pharmacists: a study protocol for a randomized controlled trial. Trials. 2019 Academic Article GET IT
Times cited: 1
Cross-Validation of the Arabic Mini International Neuropsychiatric Interview, Module K, for Diagnosis of Schizophrenia and the Arabic Positive and Negative Syndrome Scale. Journal of Psychopathology and Behavioral Assessment. 2019 Article GET IT
The prevalence of metabolic syndrome in patients receiving antipsychotics in Qatar: a cross sectional comparative study. BMC psychiatry. 2019 Academic Article GET IT
Times cited: 6
Epidemiology and treatment patterns of rheumatoid arthritis in a large cohort of Arab patients. PloS one. 2018 Academic Article GET IT
Times cited: 5
Premenstrual dysphoric disorder in Arab women: Validation and cultural adaptation of the Arabic version of the premenstrual screening tool. Women & health. 2018 Academic Article GET IT
A Randomized Controlled Trial of a Theory-Informed School-Based Intervention to Prevent Waterpipe Tobacco Smoking: Changes in Knowledge, Attitude, and Behaviors in 6th and 7th Graders in Lebanon. International journal of environmental research and public health. 2018 Academic Article GET IT
Times cited: 3
Risk Factors for Microvascular Complications of Diabetes in a High-Risk Middle East Population. Journal of diabetes research. 2018 Academic Article GET IT
Times cited: 11
Comparing disciplinary methods used by mothers in Palestine and Qatar. Child abuse & neglect. 2018 Academic Article GET IT
Times cited: 6
The educational preparation of nurses in a developing economy and patient mortality. International nursing review. 2018 Academic Article GET IT
Times cited: 4
CT-Guided Fine-Needle Aspiration Biopsy of Pulmonary Nodules 8 mm or Less Has a Higher Diagnostic Accuracy than Positron Emission Tomography-CT. Journal of vascular and interventional radiology : JVIR. 2017 Academic Article GET IT
Times cited: 2
Advanced glycation end products among patients maintained on antipsychotics. International clinical psychopharmacology. 2017 Academic Article GET IT
Chinese Health Improvement Profile for people with severe mental illness: A cluster-randomized, controlled trial. International journal of mental health nursing. 2017 Academic Article GET IT
Times cited: 9
Non-withdrawal of beta blockers in acute decompensated chronic and de novo heart failure with reduced ejection fraction in a prospective multicentre study of patients with acute heart failure in the Middle East. BMJ open. 2017 Academic Article GET IT
Times cited: 5
INTRAVITREAL DEXAMETHASONE IMPLANT AS ADJUVANT TREATMENT FOR BEVACIZUMAB- AND RANIBIZUMAB-RESISTANT NEOVASCULAR AGE-RELATED MACULAR DEGENERATION: A Prospective Pilot Study. Retina (Philadelphia, Pa.). 2017 Academic Article GET IT
Times cited: 5
Impact of Calcium and Two Doses of Vitamin D on Bone Metabolism in the Elderly: A Randomized Controlled Trial. Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research. 2017 Academic Article GET IT
Times cited: 16
Validation of the Five-Factor Model of the Arabic Version of the Positive and Negative Syndrome Scale in Schizophrenia. Psychopathology. 2017 Academic Article GET IT
Times cited: 3
Process evaluation and challenges of implementation of a school-based waterpipe tobacco smoking prevention program for teens in Lebanon. Tobacco prevention & cessation. 2017 Academic Article GET IT
A Multinational Arab Genome-Wide Association Study Identifies New Genetic Associations for Rheumatoid Arthritis. Arthritis & rheumatology (Hoboken, N.J.). 2017 Academic Article GET IT
Times cited: 15
Effectiveness of a pharmacist-delivered smoking cessation program in the State of Qatar: a randomized controlled trial. BMC public health. 2017 Academic Article GET IT
Times cited: 11
Vitamin D replacement in children, adolescents and pregnant women in the Middle East and North Africa: A systematic review and meta-analysis of randomized controlled trials. Metabolism: clinical and experimental. 2017 Review GET IT
Times cited: 16
Reliability, validity and factorial structure of the Arabic version of the international suicide prevention trial (InterSePT) scale for suicidal thinking in schizophrenia patients in Doha, Qatar. BMC psychiatry. 2016 Academic Article GET IT
Times cited: 4
Tobacco Use and Its Health Effects among Professional Athletes in Qatar. Canadian respiratory journal. 2016 Academic Article GET IT
Times cited: 2
Impact of vitamin D replacement in adults and elderly in the Middle East and North Africa: a systematic review and meta-analysis of randomized controlled trials. Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA. 2016 Review GET IT
Times cited: 7
Impact of a pharmacist-delivered discharge and follow-up intervention for patients with acute coronary syndromes in Qatar: a study protocol for a randomised controlled trial. BMJ open. 2016 Academic Article GET IT
Times cited: 3
Child discipline in Qatar and Palestine: A comparative study of ICAST-R. Child abuse & neglect. 2016 Academic Article GET IT
Times cited: 7
Validation of the Arabic Version of Calgary Depression Scale for Schizophrenia. PloS one. 2016 Academic Article GET IT
Times cited: 4
Epilepsy in Qatar: Causes, treatment, and outcome. Epilepsy & behavior : E&B. 2016 Academic Article GET IT
Times cited: 5
Validity and Reliability of the Arabic Version of the Positive and Negative Syndrome Scale. Psychopathology. 2016 Academic Article GET IT
Times cited: 8
The effect of Nurse GraduaTeness on patient mortality: a cross-sectional survey (the NuGaT study). Journal of advanced nursing. 2016 Academic Article GET IT
Times cited: 11
Effect of vitamin D replacement on indexes of insulin resistance in overweight elderly individuals: a randomized controlled trial. The American journal of clinical nutrition. 2016 Academic Article GET IT
Times cited: 23
Persistent Effect of Vitamin D Supplementation on Musculoskeletal Parameters in Adolescents One Year After Trial Completion. Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research. 2016 Academic Article GET IT
Times cited: 6
Effect of vitamin D replacement on maternal and neonatal outcomes: a randomised controlled trial in pregnant women with hypovitaminosis D. A protocol. BMJ open. 2016 Academic Article GET IT
Times cited: 7
Utilization of Evidence-Based Secondary Prevention Medications at the Time of Discharge in Patients with Acute Coronary Syndrome (ACS) in Qatar. Current vascular pharmacology. 2016 Academic Article GET IT
Times cited: 1
Role of pharmacist in cardiovascular disease-related health promotion and in hypertension and dyslipidemia management: a cross-sectional study in the State of Qatar. Journal of evaluation in clinical practice. 2015 Academic Article GET IT
Times cited: 8
Which Surgical Attitude to Choose in the Context of Non-Resectability of Ovarian Carcinomatosis: Beyond Gross Residual Disease Considerations. Annals of surgical oncology. 2015 Academic Article GET IT
Times cited: 1
Seat belt and mobile phone use among vehicle drivers in the city of Doha, Qatar: an observational study. BMC public health. 2015 Academic Article GET IT
Times cited: 10
Expression of HIF-1α and Markers of Angiogenesis Are Not Significantly Different in Triple Negative Breast Cancer Compared to Other Breast Cancer Molecular Subtypes: Implications for Future Therapy. PloS one. 2015 Academic Article GET IT
Times cited: 20
Validation of a simple tool to assess risk of waterpipe tobacco smoking among sixth and seventh graders in Lebanon. Journal of public health (Oxford, England). 2015 Academic Article GET IT
Times cited: 1
Cell Phone and Face-to-face Interview Responses in Population-based Surveys: How Do They Compare?. Field Methods. 2015 Article GET IT
Parental smoking and exposure to environmental tobacco smoke are associated with waterpipe smoking among youth: results from a national survey in Lebanon. Public health. 2015 Academic Article GET IT
Times cited: 26
Assessing the effectiveness of a pharmacist-delivered smoking cessation program in the State of Qatar: study protocol for a randomized controlled trial. Trials. 2015 Academic Article GET IT
Times cited: 4
Herbal and nutritional supplement use among college students in Qatar. Eastern Mediterranean health journal = La revue de sante de la Mediterranee orientale = al-Majallah al-sihhiyah li-sharq al-mutawassit. 2015 Academic Article GET IT
Times cited: 10
The determinants of intention to smoke waterpipe among adolescents in Lebanon: a national household survey. Journal of public health (Oxford, England). 2015 Academic Article GET IT
Times cited: 1
Barriers to achieving controlled rheumatoid arthritis in the United Arab Emirates: a cross-sectional study. Rheumatology international. 2014 Academic Article GET IT
Times cited: 2
Induction with intravitreal bevacizumab every two weeks in the management of neovascular age-related macular degeneration. American journal of ophthalmology. 2014 Academic Article GET IT
Times cited: 13
Challenges to obtaining parental permission for child participation in a school-based waterpipe tobacco smoking prevention intervention in Qatar. BMC medical ethics. 2014 Academic Article GET IT
Times cited: 6
Epidermal growth factor receptor and KRAS mutations in lung adenocarcinoma: a retrospective study of the Lebanese population. Oncology reports. 2014 Academic Article GET IT
Times cited: 6
Brucellosis outbreak in Chouf district of Lebanon in 2009: a case-control study. Eastern Mediterranean health journal = La revue de sante de la Mediterranee orientale = al-Majallah al-sihhiyah li-sharq al-mutawassit. 2014 Academic Article GET IT
Times cited: 5
Intravitreal bevacizumab in the management of neovascular age-related macular degeneration: effect of baseline visual acuity. Retina (Philadelphia, Pa.). 2013 Academic Article GET IT
Times cited: 6
Effectiveness of pictorial health warnings on cigarette packs among Lebanese school and university students. Tobacco control. 2013 Academic Article GET IT
Times cited: 14
Risk factors for incident symptomatic knee osteoarthritis: a population-based case control study in Lebanon. International journal of rheumatic diseases. 2013 Academic Article GET IT
Times cited: 6
Macular ultrastructural features in amblyopia using high-definition optical coherence tomography. The British journal of ophthalmology. 2012 Academic Article GET IT
Times cited: 43
The Relaxation Exercise and Social Support Trial (RESST): a community-based randomized controlled trial to alleviate medically unexplained vaginal discharge symptoms. BMC psychiatry. 2012 Academic Article GET IT
Times cited: 2
Truth-telling and cancer diagnoses: physician attitudes and practices in Qatar. The oncologist. 2012 Academic Article GET IT
Times cited: 11
Gender differences in the heritability of musculoskeletal and body composition parameters in mother-daughter and mother-son pairs. Journal of clinical densitometry : the official journal of the International Society for Clinical Densitometry. 2012 Academic Article GET IT
Times cited: 6
Fixed-interval versus OCT-guided variable dosing of intravitreal bevacizumab in the management of neovascular age-related macular degeneration: a 12-month randomized prospective study. American journal of ophthalmology. 2011 Academic Article GET IT
Times cited: 19
Process evaluation of a community-based mental health promotion intervention for refugee children. Health education research. 2011 Academic Article GET IT
Times cited: 10
Value of sagittal fat-suppressed proton-density fast-spin-echo of the knee joint as a limited protocol in evaluating internal knee derangements. Journal of computer assisted tomography. 2011 Academic Article GET IT
Times cited: 3
The relaxation exercise and social support trial-resst: study protocol for a randomized community based trial. BMC psychiatry. 2011 Academic Article GET IT
Times cited: 9
Hepatitis B virus and hepatitis C virus infections among female sex workers and men who have sex with men in Lebanon: prevalence, risk behaviour and immune status. Sexual health. 2011 Academic Article GET IT
Times cited: 13
Prevalence and determinants of suicide ideation among Lebanese adolescents: results of the GSHS Lebanon 2005. Journal of adolescence. 2011 Academic Article GET IT
Times cited: 43
Validation of the Arab Youth Mental Health scale as a screening tool for depression/anxiety in Lebanese children. Child and adolescent psychiatry and mental health. 2011 Academic Article GET IT
Times cited: 12
Coping and disability: evidence from a developing country. International journal of rheumatic diseases. 2011 Academic Article GET IT
Times cited: 2
Validation of the Arabic version of the Cohen Perceived Stress Scale (PSS-10) among pregnant and postpartum women. BMC psychiatry. 2010 Academic Article GET IT
Times cited: 82
Accelerated delay of random flaps in a rat model. European Journal of Plastic Surgery. 2010 Article GET IT
Gender differences in physical disability among older adults in underprivileged communities in Lebanon. Journal of aging and health. 2010 Academic Article GET IT
Times cited: 26
Double jeopardy: assessing the association between internal displacement, housing quality and chronic illness in a low-income neighborhood. Zeitschrift fur Gesundheitswissenschaften = Journal of public health. 2010 Academic Article GET IT
Consanguinity: a risk factor for preterm birth at less than 33 weeks' gestation. American journal of epidemiology. 2010 Academic Article GET IT
Times cited: 24
HIV/AIDS among female sex workers, injecting drug users and men who have sex with men in Lebanon: results of the first biobehavioral surveys. AIDS (London, England). 2010 Academic Article GET IT
Times cited: 49
HIV/AIDS in the Middle East and North Africa: new study methods, results, and implications for prevention and care. AIDS (London, England). 2010 Article GET IT
Times cited: 13
Homozygous mutations in the conserved ATP hinge region of the Wilson disease gene: association with liver disease. Journal of clinical gastroenterology. 2010 Academic Article GET IT
Times cited: 18
A 5-year survey of biopsy proven kidney diseases in Lebanon: significant variation in prevalence of primary glomerular diseases by age, population structure and consanguinity. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association. 2010 Academic Article GET IT
Times cited: 11
Distribution of hepatitis C virus genotypes among injecting drug users in Lebanon. Virology journal. 2010 Academic Article GET IT
Times cited: 37
Development and validation of the Arab Youth Mental Health Scale. Community mental health journal. 2010 Academic Article GET IT
Times cited: 10
Prevalence of antibodies to human immunodeficiency virus (HIV), hepatitis B and hepatitis C and risk factors in prisoners in Lebanon. Journal of infection in developing countries. 2010 Academic Article GET IT
Times cited: 33
Effect of age, gender and calciotropic hormones on the relationship between vitamin D receptor gene polymorphisms and bone mineral density. European journal of clinical nutrition. 2010 Academic Article GET IT
Times cited: 18
Covariate-adjusted nonparametric analysis of magnetic resonance images using Markov chain Monte Carlo. Statistics and its interface. 2010 Academic Article GET IT
Determinants of change in paternal smoking trends during pregnancy in Lebanon. Acta obstetricia et gynecologica Scandinavica. 2010 Academic Article GET IT
Times cited: 6
Vitamin D receptor gene polymorphisms modulate the skeletal response to vitamin D supplementation in healthy girls. Bone. 2009 Academic Article GET IT
Times cited: 36
Ethical considerations in HIV/AIDS biobehavioral surveys that use respondent-driven sampling: illustrations from Lebanon. American journal of public health. 2009 Review GET IT
Times cited: 14
Effect of women's perceptions and household practices on children's waterborne illness in a low income community. EcoHealth. 2009 Academic Article GET IT
Times cited: 6
Consanguinity and reproductive wastage in the Palestinian Territories. Paediatric and perinatal epidemiology. 2009 Academic Article GET IT
Times cited: 10
Domestic violence against women during pregnancy: the case of Palestinian refugees attending an antenatal clinic in Lebanon. Journal of women's health (2002). 2009 Academic Article GET IT
Times cited: 28
Housing quality and ill health in a disadvantaged urban community. Public health. 2009 Academic Article GET IT
Times cited: 19
Validation of the Arabic version of the 5-item WHO Well Being Index in elderly population. International journal of geriatric psychiatry. 2009 Academic Article GET IT
Times cited: 24
Prevalence and predictors of nonfatal myocardial infarction in Jordan. Eastern Mediterranean health journal = La revue de sante de la Mediterranee orientale = al-Majallah al-sihhiyah li-sharq al-mutawassit. 2008 Academic Article GET IT
Times cited: 11
Short- and long-term safety of weekly high-dose vitamin D3 supplementation in school children. The Journal of clinical endocrinology and metabolism. 2008 Academic Article GET IT
Times cited: 113
High prevalence of MTHFR gene A1298C polymorphism in Lebanon. Genetic testing. 2008 Academic Article GET IT
Times cited: 31
Hospital policies and practices concerning normal childbirth in Jordan. Studies in family planning. 2008 Academic Article GET IT
Times cited: 15
Occult hepatitis B virus infection in Lebanese patients with chronic hepatitis C liver disease. European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology. 2008 Academic Article GET IT
Times cited: 12
Validation of the Arabic version of the short Geriatric Depression Scale (GDS-15). International psychogeriatrics. 2008 Academic Article GET IT
Times cited: 38
The injury severity score or the new injury severity score for predicting mortality, intensive care unit admission and length of hospital stay: experience from a university hospital in a developing country. Injury. 2007 Academic Article GET IT
Times cited: 35
Impact of maternal veiling during pregnancy and socioeconomic status on offspring's musculoskeletal health. Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA. 2007 Academic Article GET IT
Times cited: 12
Hepatitis B virus DNA in serum of 'anti-HBc only'-positive healthy Lebanese blood donors: significance and possible implications. The Journal of hospital infection. 2007 Academic Article GET IT
Times cited: 19
Angiotensin-converting enzyme gene polymorphism and allele frequencies in the Lebanese population: prevalence and review of the literature. Molecular biology reports. 2006 Academic Article GET IT
Times cited: 29
Distribution of killer cell immunoglobulin-like receptors genotypes in the Lebanese population. Tissue antigens. 2006 Academic Article GET IT
Times cited: 26
Apolipoprotein E gene polymorphism and allele frequencies in the Lebanese population. Molecular biology reports. 2006 Academic Article GET IT
Times cited: 36
Alternating ibuprofen and acetaminophen in the treatment of febrile children: a pilot study [ISRCTN30487061]. BMC medicine. 2006 Academic Article GET IT
Times cited: 46
Equal antipyretic effectiveness of oral and rectal acetaminophen: a randomized controlled trial [ISRCTN11886401]. BMC pediatrics. 2005 Academic Article GET IT
Times cited: 17
Practical tests for randomized complete block designs. Journal of Multivariate Analysis. 2005 Article GET IT
Pamidronate in the prevention of chemotherapy-induced bone loss in premenopausal women with breast cancer: a randomized controlled trial. The Journal of clinical endocrinology and metabolism. 2005 Academic Article GET IT
Times cited: 78
On multivariate signed rank tests. Journal of Nonparametric Statistics. 2005 Article GET IT
How and why to study the practice content of a practice-based research network. Annals of family medicine. 2004 Academic Article GET IT
Times cited: 19
What is an intracluster correlation coefficient? Crucial concepts for primary care researchers. Annals of family medicine. 2004 Academic Article GET IT
Times cited: 302
Evaluation of a method to experimentally induce colic in horses and the effects of acupuncture applied at the Guan-yuan-shu (similar to BL-21) acupoint. American journal of veterinary research. 2002 Academic Article GET IT
Times cited: 21

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Research

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Funding awarded

Early Pregnancy Intervention for the Prevention of Gestational Diabetes Mellitus awarded by Qatar National Research Fund Key Personnel 2018 - 2022

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Background

education and training

Ph.D., University of Florida 2001
M.S., American University of Beirut (Lebanon) 1996
B.S., American University of Beirut (Lebanon) 1993

Contact

full name

Ziyad Riyad Mahfoud

primary email

zrm2001@qatar-med.cornell.edu

VIVO Weill Cornell Medical College

Ziyad Riyad Mahfoud Associate Professor of Population Health Sciences

Publications

selected publications

Research

Funding awarded

Background

education and training

Contact

full name

primary email