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      Prospective Epidemiological Research Studies in Iran (the PERSIAN Cohort Study): Rationale, Objectives, and Design

      1 , 1 , 2 , 3 , 4 , 5 , 6 , 1 , 1 , 1 , 1 , 1 , 1 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 3
      American Journal of Epidemiology
      Oxford University Press (OUP)

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          Abstract

          Noncommunicable diseases (NCDs) account for 76% of deaths in Iran, and this number is on the rise, in parallel with global rates. Many risk factors associated with NCDs are preventable; however, it is first necessary to conduct observational studies to identify relevant risk factors and the most appropriate approach to controlling them. Iran is a multiethnic country; therefore, in 2014 the Ministry of Health and Medical Education launched a nationwide cohort study-Prospective Epidemiological Research Studies in Iran (PERSIAN)-in order to identify the most prevalent NCDs among Iran's ethnic groups and to investigate effective methods of prevention. The PERSIAN study consists of 4 population-based cohorts; the adult component (the PERSIAN Cohort Study), described in this article, is a prospective cohort study including 180,000 persons aged 35-70 years from 18 distinct areas of Iran. Upon joining the cohort, participants respond to interviewer-administered questionnaires. Blood, urine, hair, and nail samples are collected and stored. To ensure consistency, centrally purchased equipment is sent to all sites, and the same team trains all personnel. Routine visits and quality assurance/control measures are taken to ensure protocol adherence. Participants are followed for 15 years postenrollment. The PERSIAN study is currently in the enrollment phase; cohort profiles will soon emerge.

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          Most cited references12

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          Cancer incidence and mortality in Iran.

          Cancer is the third main cause of death in Iran. This report was provided for explaining cancer incidence and mortality. The National Cancer Registry reports from 2003 to 2006, population-based cancer registry reports from five provinces in 2006 and National Death Registry reports from 1999 to 2004 have been applied in this report. The age-standardized incidence rate of cancers was 98 and 110 per 100,000 among females and males. The male to female standard ratio was 1.12. The most common cancer among women and men was breast cancer (24) and stomach cancer (15), respectively. The estimated mortality rate for cancer was 41.1 and 65 per 100,000 for females and males in 2004. The current low cancer incidence rates in Iran might be due to lack of national cancer screening programs for prostate, colorectal or breast cancer, a consequence of incomplete registration as well as incomplete diagnosis of cancer patients; it is expected that it will rise dramatically in the future because of anticipated increase in life expectancy and westernized lifestyle. The first priorities for health policy makers should be developing, establishing and implementing national cancer control; or else, the health system could not respond to the demands regarding to diagnosis, treatment and palliation for these patients in the future.
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            Cohort Profile: The Golestan Cohort Study--a prospective study of oesophageal cancer in northern Iran.

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              Design and Serendipity in Establishing a Large Cohort with Wide Dietary Intake Distributions

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                Author and article information

                Journal
                American Journal of Epidemiology
                Oxford University Press (OUP)
                0002-9262
                1476-6256
                April 2018
                April 01 2018
                November 14 2017
                April 2018
                April 01 2018
                November 14 2017
                : 187
                : 4
                : 647-655
                Affiliations
                [1 ]Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences
                [2 ]Department of Biology, School of Computer, Mathematical, and Natural Sciences, Morgan State University, Baltimore, Maryland
                [3 ]Digestive Oncology Research Center, Digestive Diseases Research Institute, Tehran UMS, Tehran, Iran
                [4 ]Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
                [5 ]Department of Health Sciences Education Development, School of Public Health, Tehran UMS, Tehran, Iran
                [6 ]Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Shahid Beheshti UMS, Tehran, Iran
                [7 ]Liver and Gastrointestinal Diseases Research Center, Tabriz UMS, Tabriz, Iran
                [8 ]Department of Gastroenterology, Gastrointestinal and Liver Diseases Research Center, Guilan UMS, Rasht, Iran
                [9 ]Research Center for Environmental Determinants of Health, School of Public Health, Kermanshah UMS, Kermanshah, Iran
                [10 ]Noncommunicable Diseases Research Center, Fasa UMS, Fasa, Iran
                [11 ]Department of Occupational Medicine, Faculty of Medicine, Shahid Sadoughi UMS, Yazd, Iran
                [12 ]Health Promotion Research Center, Zahedan UMS, Zahedan, Iran
                [13 ]School of Public Health and Health Sciences Research Center, Mazandaran UMS, Sari, Iran
                [14 ]Department of Cardiology, School of Medicine, Rafsanjan UMS, Rafsanjan, Iran
                [15 ]Department of Epidemiology, School of Health, Shiraz UMS, Shiraz, Iran
                [16 ]Department of Otolaryngology, Head and Neck Surgery, Hearing and Speech Research Center, Ahvaz Jundishapur UMS, Ahvaz, Iran
                [17 ]Eye Research Center, Farabi Eye Hospital, Tehran UMS, Tehran, Iran
                [18 ]Department of Pediatrics, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Diseases, Isfahan UMS, Isfahan, Iran
                [19 ]Iranian National Center for Addiction Studies, Tehran UMS, Tehran, Iran
                [20 ]Department of Statistics and Epidemiology, Faculty of Health Sciences, Tabriz UMS, Tabriz, Iran
                [21 ]Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York
                Article
                10.1093/aje/kwx314
                6279089
                29145581
                1ea279d2-d078-4477-9397-a87597ae9c66
                © 2017

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