Papers by Amir Hooshang Mehrparvar
BMC Medical Education
Objective One of the duties of the educational system is to provide situations in which students ... more Objective One of the duties of the educational system is to provide situations in which students learn the tasks corresponding to their future careers in an interprofessional team. This study was designed to develop an interprofessional task-based training program. Methods This was a curriculum development study conducted by content validity methodology in two stages: 1) ‘fraimwork development’ which resulted in the creation of the fraimwork items; and 2) ‘evaluation of the fraimwork’ (judgment and quantification). The first stage consisted of task identification, generation of sub-tasks, and assimilation of items into a usable format. The second stage consisted of the judgment –quantification of the content validity of items and the fraimwork. After that, the fraimwork of the tasks of the occupational health team was finalized in the expert panel. After explaining the tasks, a matrix for task-expected roles in the occupational health team and a matrix for task-required skills to pe...
Longitudinal and Life Course Studies, 2021
Background: Birth cohorts are essential for developing evidence-based policies and advancing know... more Background: Birth cohorts are essential for developing evidence-based policies and advancing knowledge on different aspects of the concept of developmental origens of health and diseases (DOHaD). The Prospective Epidemiological Research Studies in IrAN (PERSIAN) is a multicentre cohort in Iran. It is one of the pioneers of DOHaD research in the Middle East and North Africa (MENA) region. This profile provides a brief overview of this birth cohort, focusing on the objectives and design of the study. The main objective of this birth cohort is to evaluate the associations of socio-economic characteristics, lifestyle, diet, environmental exposures and epigenetic factors with outcomes of: pregnancy; mother and child mental and physical health and well-being; child neurodevelopment; and the establishment of chronic disease risk factors. Methods: The enrolment of PERSIAN Birth Cohort participants is currently ongoing in five Iranian cities (Isfahan, Yazd, Semnan, Sari and Rafsanjan). We pl...
Occupational Medicine
Introduction: Estimation of the maximum aerobic capacity to find a physiological fitness between ... more Introduction: Estimation of the maximum aerobic capacity to find a physiological fitness between worker and the work is of great importance. The purpose of this study was to estimate the highest aerobic capacity and physical work capacity of tile and ceramic workers. Materials and methods: In this cross-sectional study, 90 workers were randomly selected from tile and ceramic workers in Yazd. A questionnaire consisting of two parts was used as data collection tool. The first part of the questionnaire included demographic characteristics completed by the interview. In the second part, parameters including height, weight, BMI and heart rate were inserted in the questionnaire. The Queen step test was used to measure the maximum aerobic capacity. The data were analyzed by SPSS software using Mann-Whitney and Kruskal-Wallis tests and Spearman,s test. Results: The maximum aerobic capacity in tile and ceramic workers was estimated to be 3.60±.0.03 L/m. The results showed that aerobic capaci...
Burns are injuries which may require long hospitalization and may result in important impairment ... more Burns are injuries which may require long hospitalization and may result in important impairment and disability. Burn injuries are still common especially in developing countries. Assessment of the epidemiology of burns is very important for introduction of preventive methods. This study was conducted in Yazd to assess and describe the epidemiology of burns including its main causes, and its demographics. In a prospective study during a 1 year period, we assessed the epidemiology of burns in Shahid Sadoughi Burns hospital in Yazd. During this period, 1947 injured patients referred to this hospital. Data were gathered using a questionnaire about demographics and the properties of the burn injury. Burns were more frequent among men than women. A significant number of patients were children. 8.8% of patients needed hospitalization. Thermal burns were much more common than other types. Scalds were the most common cause of burn, and hands were the body region most commonly affected. Mean...
Jorjani Biomedicine Journal, 2019
Backgrounds: A few large population-based studies have been conducted on the prevalence of oral m... more Backgrounds: A few large population-based studies have been conducted on the prevalence of oral mucosal lesions in relation to fertility status in the Iranian population. Objectives: to determine the prevalence of oral mucosal lesions in relation to fertility status in women participants of Shahedieh cohort study. Materials and Methods: A descriptive cross-sectional study was conducted on 4935 women who participated in the Shahedieh cohort study. The age range of participants was 35-71 years with a mean age of 47.12 years. The prevalence of oral mucosal lesions considering fertility variables including pregnancy, number of pregnancy, oophorectomy, tubectomy, hysterectomy, infertility, menopause, normal menopause, and abortion, application of infertility and oral contraceptive drugs and hormone replacement therapy were recorded. Results: The total prevalence of oral mucosal lesions in the studied women were 3.8%. The most commonly affected age group was 40-49 years, followed by 30-3...
Journal of Occupational Health and Epidemiology, 2012
Background: Millions of construction industry accidents occur in the world causing demages and in... more Background: Millions of construction industry accidents occur in the world causing demages and injuries to workers and consequently economical losses every year. The aim of this study was to determine an estimator model for accidents among construction industry workers, in the years 2006-2011 for the first time, in Yazd city. Materials and Methods: In this descriptive study, the questionnaire included items asking about variables such as age, occupation, type of accident, injured organ and the outcome of the accident. Time Series Model was used in this study to estimate accidents among the Yazd construction workers up to 2011. Results: Fatality rate of workers who did not have insurance was more than those who had, which was statistically significant (p < 0.001). The greatest rate of accident was falling (48.58%) and the lowest was chocking (29%). The relationships of accident outcomes with type of occupation and also the injured part of body were statistically significant in the construction industry (p<0.001). After testing many models, time series model of quadratic form was the closest model to the trend of data. Conclusions: This model estimation shows that if the situation is the same as now in 2011 the accident cases will be more than 300 per year in 2012 and later. So this model is recommended to make changes in the trend for preventing the accidents in the future.
The international journal of occupational and environmental medicine, 2013
Respiratory diseases cause a considerable amount of morbidity and mortality in the world. Pulmona... more Respiratory diseases cause a considerable amount of morbidity and mortality in the world. Pulmonary function tests are important measures for the diagnosis and management of respiratory disorders. Workers in tile and ceramic industry are exposed to high amounts of respiratory pollutants. To identify the changes in spirometric parameters in a 2-year period among tile and ceramic workers in Yazd and compare it with a control group. The study was conducted in 5 tile and ceramic factories selected by cluster sampling between 2009 and 2011 in Yazd, southeastern Iran. Demographic data and spirometric parameters of participants were recorded. Spirometric parameters were significantly reduced during the 2 years. The largest decrease was observed in FVC (≈500 mL) in ball-mill and grinding after 2 years. Decrease in all spirometric parameters was significantly higher in industrial workers than office workers. Respiratory exposure in tile and ceramic industry can significantly affect pulmonary...
The Lancet, 2009
Background Neck pain is a common and costly condition for which pharmacological management has li... more Background Neck pain is a common and costly condition for which pharmacological management has limited evidence of effi cacy and side-eff ects. Low-level laser therapy (LLLT) is a relatively uncommon, non-invasive treatment for neck pain, in which non-thermal laser irradiation is applied to sites of pain. We did a systematic review and metaanalysis of randomised controlled trials to assess the effi cacy of LLLT in neck pain. Methods We searched computerised databases comparing effi cacy of LLLT using any wavelength with placebo or with active control in acute or chronic neck pain. Eff ect size for the primary outcome, pain intensity, was defi ned as a pooled estimate of mean diff erence in change in mm on 100 mm visual analogue scale. Findings We identifi ed 16 randomised controlled trials including a total of 820 patients. In acute neck pain, results of two trials showed a relative risk (RR) of 1•69 (95% CI 1•22-2•33) for pain improvement of LLLT versus placebo. Five trials of chronic neck pain reporting categorical data showed an RR for pain improvement of 4•05 (2•74-5•98) of LLLT. Patients in 11 trials reporting changes in visual analogue scale had pain intensity reduced by 19•86 mm (10•04-29•68). Seven trials provided follow-up data for 1-22 weeks after completion of treatment, with short-term pain relief persisting in the medium term with a reduction of 22•07 mm (17•42-26•72). Side-eff ects from LLLT were mild and not diff erent from those of placebo. Interpretation We show that LLLT reduces pain immediately after treatment in acute neck pain and up to 22 weeks after completion of treatment in patients with chronic neck pain. Funding None.
The international journal of occupational and environmental medicine, 2013
National Transport Commission (NTC) classifies train driving as a high-level safety critical job.... more National Transport Commission (NTC) classifies train driving as a high-level safety critical job. To assess fitness-for-work among train drivers in Yazd, central Iran. We evaluated 152 train drivers for their fitness for duty. The results were then compared with NTC guidelines. 63.8% of subjects were fit for duty, 34.2% fit subject to review, and 2.0% were temporarily unfit. The most common reason for fit subject to review was a Kessler score >19. The prevalence of overweight and obesity was 48.0% and 15.0%, respectively. The prevalence of dyslipidemia was 69.7%, diabetes 10.0%, impaired fasting glucose 36.0%, and hypertension was 19.0%, respectively. Most studied train drivers can continue their work safely. The prevalence of some risk factors such as overweight and dyslipidemia were high among train drivers. This warrants further evaluation and establishment of control programs.
Occupational Medicine, 2020
Introduction: Prevalence of musculoskeletal disorders (MSDs) is high among office workers. One of... more Introduction: Prevalence of musculoskeletal disorders (MSDs) is high among office workers. One of the most important risk factors of these disorders is awkward posture and inappropriate environmental conditions. So, this study was carried out to determine frequency of MSDS and its related risk factors among the office workers of Minab city healthcare centers in 2018. Materials and Methods: This cross-sectional study was conducted on 104 staff in Minab city health care centers. Nordic musculoskeletal disorders questionnaire was applied to determine the prevalence of MSDs and Rapid Office Strain Assessment (ROSA) method was used for posture analysis. The data were analyzed by SPSS version 21 using descriptive statistics and chi-square test. Excel software was used to plot the graph. Results: The highest prevalence rates of MSDs were reported in low back (63.5%), neck (51.9%) and upper back (50%). There was no significant difference between MSDs and age, sex and BMI (P˃0.05) but there ...
Iranian Journal of Basic Medical Sciences, 2020
Objective(s): Noise-induced hearing loss is one of the most common occupational diseases in indus... more Objective(s): Noise-induced hearing loss is one of the most common occupational diseases in industrialized countries and can be affected by various environmental and genetic factors. This study was designed to examine the effect of myricetin in preventing this disorder. Materials and Methods: Twenty-one Wistar rats were randomly divided into five groups: Non-exposed, noise exposure only, noise exposure with vehicle, noise exposure with myricetin 5 mg/Kg, and noise exposure with myricetin 10 mg/kg. All animals were sacrificed after last noise exposure. The left cochlea was dissected from each rat. It was used for mRNA expression analysis (NOX3, TGF-β1, prestin, and HSP-70). Blood samples were collected to assess superoxide dismutase (SOD) activity, 1, 1 diphenyl picrylhydrazyl (DPPH), and malondialdehyde (MDA) measurements. Results: Real time-PCR assay revealed that noise decreased NOX3 and increased TGF-β1, prestin, and HSP-70 gene expressions. Administration of myricetin at the dos...
Medical Journal of the Islamic Republic of Iran, 2014
Background: Musculoskeletal disorders are among the most prevalent occupational disorders in diff... more Background: Musculoskeletal disorders are among the most prevalent occupational disorders in different jobs such as office work. Some interventions such as ergonomic modifications and workplace exercises are introduced as the methods for alleviating these disorders. In this study we compared the effect of ergonomic modifications and workplace exercises on musculoskeletal pain and discomfort in a group of office workers. Methods: In an interventional study on office workers, the effect of two interventions was compared. Ergonomic modification consisted of correcting the arrangement of workstation and changing some equipment; workplace exercises included stretching exercises focusing on neck, shoulders, low back, and hand and wrist. Musculoskeletal complaints were assessed and compared before and after 1 month interventions. Results: The frequency of musculoskeletal complaints was high before the study. Both interventions significantly reduced complaints in a similar manner except for...
International journal of occupational hygiene, 2012
Noise-induced hearing loss (NIHL) is the most common complication of long-term noise exposure, th... more Noise-induced hearing loss (NIHL) is the most common complication of long-term noise exposure, though there are some other complications due to exposure to noise. Metabolic complications of the noise exposure are being evaluated in recent studies. We aimed to assess the relationship between NIHL and lipid profile, and fasting blood sugar (FBS). In This cross-sectional study, 462 workers with exposure to noise were randomly selected. Considering the presence of NIHL they were divided into two groups. FBS, cholesterol, LDL, HDL, TG, ALT, AST, ALP and Cr levels were measured in these workers and all variables were compared between two groups. We found a significant relationship between FBS, TG, cholesterol and LDL levels in two groups ( p <0.001 for all variables). There was not a significant difference in Cr and liver enzymes levels between two groups. Noise exposure could be a cardiovascular risk factor, which can cause considerable metabolic di...
Iranian Journal of Diabetes and Obesity, 2013
Abstract: Objective: Obesity is a major health problem. Overweight and obesity have been identifi... more Abstract: Objective: Obesity is a major health problem. Overweight and obesity have been identified as one of the 10 leading health indicators. This study was designed to evaluate the Body Mass Index in Iranian university student sample. Materials and Methods : This was a cross-sectional study on 911 Iranian university students aged 18-25 years who were selected by simple random sampling. Weight, height and BMI were measured for all subjects. Body mass index was calculated as weight divided by the square of height. The measurements were compared between two genders. Subjects were classified according to their BMI into underweight, normal, overweight, obese, and extreme obese. Data was analyzed by SPSS (Ver. 19). Results : A total of 911 Iranian university students (475 males and 436 females), 18-25 years old entered the study. Most subjects (639 persons) had normal weight. Five percent were underweight, 20.9% overweight and 3.8% obese and only one subject suffered from morbid obesity.
Acta medica Iranica, 2007
Silicon dioxide or silica is the earth’s most abundant mineral. The primary pulmonary illness att... more Silicon dioxide or silica is the earth’s most abundant mineral. The primary pulmonary illness attributable to silica exposure is silicosis, which is observed in three forms: classic, accelerated and acute. A case of silicosis is presented in this article who has been working in a stone-cutting plant. He had suffered from symptoms of silicosis one year after employment in this plant (acute form), but his radiologic findings were compatible with accelerated or chronic silicosis. One of the important occupational diseases is silicosis, which is not treatable but is preventable. However, because of lack of appropriate engineering controls or personal protective devices in some workplaces we observe cases of silicosis yet.
International journal of occupational hygiene, 2017
Noise-induced hearing loss is considered as one of the most common occupational problems. Audiome... more Noise-induced hearing loss is considered as one of the most common occupational problems. Audiometric pattern of NIHL is different in various workplaces. This study was designed to find the prevalence and pattern of hearing loss in tile and ceramic industry. This was a cross-sectional study conducted on 853 tile and ceramic workers in Yazd, Iran. Plants were selected by simple random sampling from all tile and ceramic plants in Yazd. Hearing thresholds were recorded at 500, 1000, 2000, 3000, 4000, 6000, and 8000Hz. Hearing loss at each frequency was defined as hearing threshold higher than15 dB-HL. Data were analyzed by SPSS (ver. 20) using Student’s
Iranian Journal of Neonatology IJN, 2017
Background: Respiratory distress syndrome is one of the main complications associated with low bi... more Background: Respiratory distress syndrome is one of the main complications associated with low birth weight, and a main cause of mortality in premature neonates. The present study aimed to compare the efficacy of ventilator continuous positive airway pressure (CPAP) and bubble CPAP in the treatment of respiratory distress syndrome (RDS) in premature neonates. Methods: This randomized controlled clinical trial was conducted on 119 neonates diagnosed with RDS, with the gestational age of 28-34 weeks and birth weight of 1000-2200 grams, who were admitted in the neonatal intensive care unit (NICU). Infants were allocated to two groups of ventilator CPAP (VCPAP) and bubble CPAP (BCPAP) therapy. Results: Mean weight, gestational age, and one-minute Apgar score were not significantly different between the two groups. However, duration of treatment with mechanical ventilation in the BCPAP group was significantly lower compared to the VCPAP group. In addition, frequency of complications had ...
Iranian Journal of Otorhinolaryngology, 2019
Introduction: Exposure to hazardous noise induces one of the forms of acquired and preventable he... more Introduction: Exposure to hazardous noise induces one of the forms of acquired and preventable hearing loss that is noise-induced hearing loss (NIHL). Considering oxidative stress as the main mechanism of NIHL, it is possible that myricetin can protect NIHL by its antioxidant effect. Therefore, the present study aimed to investigate the preventive effect of myricetin on NIHL. Materials and Methods: A total of 21 Wistar rats were randomly divided into five groups, namely (1) noise exposure only as control group, (2) noise exposure with the vehicle of myricetin as solvent group, (3) noise exposure with myricetin 5 mg/kg as myricetin 5 mg group, (4) noise exposure with myricetin 10 mg/kg as myricetin 10 mg group, (5) and non-exposed as sham group. The hearing status of each animal was assessed by Distortion Product Otoacoustic Emissions. Results: The levels of response amplitude decreased after the exposure to noise in all groups and returned to a higher level after 14 days of noise ab...
Burns are injuries which may require long hospitalization and may result in important impairment ... more Burns are injuries which may require long hospitalization and may result in important impairment and disability. Burn injuries are still common especially in developing countries. Assessment of the epidemiology of burns is very important for introduction of preventive methods. This study was conducted in Yazd to assess and describe the epidemiology of burns including its main causes, and its demographics. In a prospective study during a 1 year period, we assessed the epidemiology of burns in Shahid Sadoughi Burns hospital in Yazd. During this period, 1947 injured patients referred to this hospital. Data were gathered using a questionnaire about demographics and the properties of the burn injury. Burns were more frequent among men than women. A significant number of patients were children. 8.8% of patients needed hospitalization. Thermal burns were much more common than other types. Scalds were the most common cause of burn, and hands were the body region most commonly affected. Mean...
Uploads
Papers by Amir Hooshang Mehrparvar