Affiliations

• ¹ Department of Epidemiology and statistics, Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran.
• ² Department of Basic Medical Sciences, Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran.
• ³ Department of Basic Medical Sciences, Non-Communicable Diseases Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran.
• ⁴ Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Science, Tehran, Iran.
• ⁵ Department of Cardiology, Research Center for Prevention of Cardiovascular Endocrinology & Metabolism, Research Institute Hazrat-e Rasool General Hospital, Iran University of Medical Sciences, Tehran, Iran.
• ⁶ Department of Internal Medicine, Tuberculosis and Lung Diseases Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran.
• ⁷ Department of Internal Medicine, Connective Tissue Diseases Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran.
• ⁸ Department of Psychiatrics, Shiraz Geriatric Research Centre, Shiraz University of Medical Sciences, Shiraz, Iran.
• ⁹ Longitudinal Study on Ageing Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran.
• ¹⁰ Department of Cardiology, Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran.
• ¹¹ Centre for Innovative Ageing, College of Human and Health Sciences, Swansea University, Swansea, UK.
• ¹² Department of Medical Gerontology, Trinity College Dublin, Ireland.
• ¹³ Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON Canada.
• ¹⁴ School of Psychology, Massey University, Palmerston North, New Zealand.
• ¹⁵ Digestive Diseases Research Centre, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran.