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Akbar Fotouhi

Mohammad Hassan Emamian, Mansooreh Fateh, Ahmad Reza Hosseinpoor, Ali Alami, Akbar Fotouhi
OBJECTIVE: To investigate the socioeconomic inequality of obesity and its determinants in Iran. METHODS: Data was from Iran's surveillance system for risk factors of non-communicable diseases which was conducted on 89,400 individuals aged 15-64 years in 2005. Principal component analysis was used to create a new variable for defining socioeconomic status of participants. We assessed inequality by calculating a slop index of inequality and concentration index for obesity...
March 31, 2017: Economics and Human Biology
Hassan Hashemi, Hadith Rastad, Mohammad Hassan Emamian, Akbar Fotouhi
OBJECTIVES: To determine the prevalence of conjunctivochalasis and its determinants in a middle-aged Iranian population. METHODS: This population-based study was conducted in the context of the second phase of Shahroud Eye Cohort Study in 2014. Of 4,737 participants aged 45 to 69 years who participated in the second phase, the data of 4,702 participants were available for this report. A diagnosis of conjunctivochalasis was made based on the physician's judgment on ophthalmic examinations...
March 24, 2017: Eye & Contact Lens
Samaneh Ghasemi, Akbar Fotouhi, Neda Moslemi, Zahra Chinipardaz, Jafar Kolahi, Mojgan Paknejad
PURPOSE: This meta-analysis and systematic review focused on the following question: Does tobacco smoking increase the risk of intra- or postoperative complications of lateral maxillary sinus floor elevation? MATERIALS AND METHODS: The following electronic databases were searched up to and including November 2015 without language restriction: CENTRAL, MEDLINE, Google Scholar, Scopus, Sirous, and Doaj. Studies were included if rates of intra-or postoperative complications of sinus floor elevation in smokers and nonsmokers were recorded separately...
March 23, 2017: International Journal of Oral & Maxillofacial Implants
Hassan Hashemi, Mehdi Khabazkhoob, AbbasAli Yekta, Mohammad Hassan Emamian, Payam Nabovati, Akbar Fotouhi
PURPOSE: To determine the distribution of macular thickness in a healthy Iranian population aged 45-69 years and its association with certain determinants. METHODS: All participants underwent optometric examinations including measurement of uncorrected and corrected visual acuity, objective refraction by retinoscopy, and subjective refraction. Subsequently, all participants underwent slit-lamp biomicroscopy followed by fundus examination through direct and indirect ophthalmoscopy, and optical coherence tomography (OCT) imaging under pupil dilation...
March 23, 2017: Ophthalmic Epidemiology
Soheila Asgari, Hassan Hashemi, Mohammad Miraftab, Saied Shahhoseini, Ebrahim Jafarzadhpur, Shiva Mehravaran, Akbar Fotouhi
OBJECTIVES: One-year changes in uncorrected (UDVA) and corrected (CDVA) distance visual acuity under different lighting conditions after accelerated cross-linking (CXL) in patients with progressive keratoconus in comparison with nontreated cases. METHODS: In this nonrandomized clinical trial, the sample included 50 eyes in the CXL group and 40 eyes in the control group. Visual acuity was tested under photopic (100 lux), mesopic (20 lux), and scotopic (0.5 lux) lighting conditions at 6 months and 1 year...
February 27, 2017: Eye & Contact Lens
Yahya Salimi, Akbar Fotouhi, Kazem Mohammad, Nasrin Mansournia, Mohammad Ali Mansournia
BACKGROUND: In the presence of non-adherence, intention-to-treat analysis preserves randomization, but does not lead to a valid comparison of outcome between the assigned groups. Using a reanalysis of Diabetes Prevention Program, this study aimed to estimate the causal effect of treatment with intensive lifestyle intervention or metformin vs. placebo on blood pressure and lipid profile using G-estimation after accounting for non-adherence. METHODS: The Diabetes Prevention Program randomized 3,052 pre-diabetic individuals to metformin (N = 1015), placebo (N = 1014), or an intensive lifestyle intervention (N = 1023)...
January 2017: Archives of Iranian Medicine
Mojtaba Parsa, Bagher Larijani, Kiarash Aramesh, Saharnaz Nedjat, Akbar Fotouhi, Mir Saeed Yekaninejad, Nejatollah Ebrahimian, Mohamad Jafar Kandi
BACKGROUND: Fee splitting is a process whereby a physician refers a patient to another physician or a healthcare facility and receives a portion of the charge in return. This survey was conducted to study general practitioners' (GPs) attitudes toward fee splitting as well as the prevalence, causes, and consequences of this process. METHODS: This is a cross-sectional study on 223 general practitioners in 2013. Concerning the causes and consequences of fee splitting, an unpublished qualitative study was conducted by interviewing a number of GPs and specialists and the questionnaire options were the results of the information obtained from this study...
December 2016: Archives of Iranian Medicine
Hassan Hashemi, Shiva Mehravaran, Mohammad Hassan Emamian, Akbar Fotouhi
PURPOSE: To study the 5-year incidence of visual impairment and its causes and risk factors, in the middle-aged Iranian sample of the Shahroud Eye Cohort Study (ShECS). METHODS: Data from subjects who had participated in both phases of the ShECS were used to determine age- and sex-specific incidence rates of visual impairment using the World Health Organization (WHO) definitions for bilateral low vision (visual acuity, VA, >0.5 and ≤1.3 LogMAR in the better eye) and blindness (VA worse than 1...
February 2017: Ophthalmic Epidemiology
Majid Sartipi, Saharnaz Nedjat, Mohammad Ali Mansournia, Vali Baigi, Akbar Fotouhi
BACKGROUND: Some variables like Socioeconomic Status (SES) cannot be directly measured, instead, so-called 'latent variables' are measured indirectly through calculating tangible items. There are different methods for measuring latent variables such as data reduction methods e.g. Principal Components Analysis (PCA) and Latent Class Analysis (LCA). OBJECTIVES: The purpose of our study was to measure assets index- as a representative of SES- through two methods of Non-Linear PCA (NLPCA) and LCA, and to compare them for choosing the most appropriate model...
November 2016: Archives of Iranian Medicine
Abbas Abbasi-Ghahramanloo, Afarin Rahimi-Movaghar, Hojjat Zeraati, Saeid Safiri, Akbar Fotouhi
BACKGROUND: Hookah smoking has increased worldwide, especially among young people. OBJECTIVES: The aim of the present study was to determine the prevalence of hookah use and related factors in a sample of Iranian students of medical sciences. MATERIALS AND METHODS: A cross-sectional study was conducted on 1992 randomly selected sample of students of Tehran University of Medical Sciences during 2012 - 2013. A multistage sampling method was used and anonymous structured questionnaires were distributed to the students of each selected class...
June 2016: Iranian Journal of Psychiatry and Behavioral Sciences
Hassan Hashemi, Mehdi Khabazkhoob, Payam Nabovati, Abbasali Yekta, Mohammad Hassan Emamian, Akbar Fotouhi
BACKGROUND: To determine retinal nerve fibre layer (RNFL) thickness distribution and its related factors in a general population of 45 to 69 year olds in Iran. DESIGN: Population-based cross-sectional study. PARTICIPANTS: Of the 5190 participants of phase one of Shahroud Eye Cohort Study, 4737 participated in Phase two (participation rate = 91.3%). METHODS: All study participants underwent visual acuity measurement, refraction tests, slit lamp examination and ophthalmoscopic fundus exam...
April 2017: Clinical & Experimental Ophthalmology
Hassan Hashemi, Mehdi Khabazkhoob, Mohammad Hassan Emamian, Mohammad Shariati, Abbasali Yekta, Akbar Fotouhi
AIM: To determine the distribution of intraocular pressure (IOP) and its determinants in an Iranian population. METHODS: In a cross-sectional survey, random cluster sampling was conducted from the 40-64 years old population of Shahroud, in the north of Iran. All participants had optometry and ophthalmic exams. IOP was determined using the Goldmann tonometry method and biometric components were measured. RESULTS: Of the 6311 people selected for the study, 5190 (82...
2016: International Journal of Ophthalmology
Hassan Hashemi, Mehdi Khabazkhoob, Mohammad Hassan Emamian, Abbasali Yekta, Ali Jafari, Payam Nabovati, Akbar Fotouhi
PURPOSE: To determine upper eyelid ptosis prevalence and some related factors in 44- to 69-year-olds of Shahroud in the north of Iran. METHODS: In 2009, using multi-stage cluster sampling, 300 clusters of 40-64-year-olds were selected in Shahroud city, and all 5190 participants were invited to be re-examined in 5 years (2014). The current report is the second phase of the study in which 4737 (91.3%) people participated and underwent vision tests, slit lamp examination, biometry, and ophthalmoscopy in 2014...
September 2016: Journal of Current Ophthalmology
Saeid Safiri, Afarin Rahimi-Movaghar, Masud Yunesian, Homayoun Sadeghi-Bazargani, Mansour Shamsipour, Mohammad Ali Mansournia, Akbar Fotouhi
BACKGROUND: Risky behaviors may interrupt development or cause considerable morbidity or mortality. This study's purpose was to determine subgroups of students based on risky behaviors and assess the prevalence of risky behaviors in each of the subgroups. PARTICIPANTS AND METHODS: This anonymous cross-sectional study was carried out in October 2015 and November 2015, with 1,777 students from Tabriz University of Medical Sciences, through multistage random sampling method...
2016: Neuropsychiatric Disease and Treatment
Maryam Hadji, Fariba Asghari, Masoud Yunesian, Payam Kabiri, Akbar Fotouhi
BACKGROUND: This study was done to determine the prevalence of publication misconduct among Iranian authors. METHODS: Data were collected through an email survey of corresponding authors of papers published in Iranian journals indexed in Scopus during 2009-2011. Using the double list experiment, these individuals were indirectly questioned about committing one of the five misconducts including duplicate publication, falsification, guest authorship, plagiarism, and fabrication over the past year...
July 2016: Iranian Journal of Public Health
Hossein Ebrahimi, Mohammad Hassan Emamian, Hassan Hashemi, Akbar Fotouhi
OBJECTIVES: There are few data concerning the incidence rates of diabetes in Iran. This study aimed to determine the incidence of diabetes and its risk factors in a middle-aged population in Iran. METHODS: All of the people who participated in the first phase of the Shahroud eye cohort study were invited to the study in 2014; after signing informed consent forms, a total of 4737 people 45 to 69 years of age were enrolled in the second phase of the study (participation rate: 91...
December 2016: Canadian Journal of Diabetes
Hassan Hashemi, Hadith Rastad, Mohammad Hassan Emamian, Akbar Fotouhi
OBJECTIVES: To estimate the prevalence of floppy eyelid syndrome (FES) and to determine the associated factors in a representative sample of Iranian adult population aged 45 to 69 years. METHODS: The data were according to the second phase of Shahroud Eye Cohort Study performed in 2014 with 4,737 participants aged 45 to 69 years. Diagnosis of FES was made based on the clinical judgment of the ophthalmologist during ocular examinations. The percentage and confidence intervals (CIs) of the prevalence of FES were reported, and the associated factors were analyzed using simple and multiple logistic regression models...
July 13, 2016: Eye & Contact Lens
Hassan Hashemi, Soheila Asgari, Mohammad Hassan Emamian, Shiva Mehravaran, Akbar Fotouhi
PURPOSE: To determine five year changes in corneal thickness from the apex to the 8mm periphery and related factors through a longitudinal population-based study of middle-aged Iranians. METHODS: In the first phase, 4670 of the 5190 participants, and in the second phase, 4666 of the 4737 participants were examined with the Pentacam. In this report, analysis was done on right eye data of 2509 people who had no diabetes, pterygium, or history of eye surgery, and their image quality was displayed as "ok"...
October 2016: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
Hassan Hashemi, Mehdi Khabazkhoob, Mohammad Hassan Emamian, Ali Jafari, Saman Mohazeb-Torabi, Akbar Fotouhi
PURPOSE: To determine the prevalence of exfoliation syndrome (XFS) and some of its related factors in an Iranian population aged 45-69 years. METHODS: In the first phase of the Shahroud Eye Cohort Study, 5190 people in 300 clusters from Shahroud city in the northeast of Iran participated in the study. The second phase of the study was conducted 5 years later in 2014. Vision testing, refraction, slit lamp examination, and fundus examination were performed for all participants...
October 2016: Ophthalmic Epidemiology
Hassan Hashemi, Mehdi Khabazkhoob, Ebrahim Jafarzadehpur, Abbasali Yekta, Mohammad Hassan Emamian, Mohammad Shariati, Akbar Fotouhi
PURPOSE: To determine the distribution of Zernike coefficients and higher order aberrations in a normal population and its relationship with age, gender, biometric components, and spherical equivalent. METHODS: During the first phase of the Shahroud cohort study, 6311 people of the 40-64-year-old population of Shahroud city were selected through random cluster sampling. A subsample of participants was examined with Zywave aberrometer (The Bausch & Lomb, Rochester, NY) to measure aberrations...
September 2015: Journal of Current Ophthalmology
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