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Birjand longitudinal aging study (BLAS): the objectives, study protocol and design (wave I: baseline data gathering)

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Abstract

Objectives

The pace of population aging is growing rapidly around the world. Aging is associated with the emergence of different health status including geriatric syndrome such as frailty, diabetes, cardiovascular diseases, and dementia. These conditions are the most prominent challenges for health care systems and also elderly people. Therefore, understanding these changes can help scientists to prevent and treat significant health issues and also improve the functional ability of older adults.

Methods

This is a protocol of the first wave of Birjand Longitudinal Aging Study that is an ongoing community-based prospective cohort study with a following up at least 10 years. This study carries out on aged population ≥ 60 years which were residents in Birjand County (urban and rural older subjects). The selection of the participants of this study in urban areas is based on an age group weighted multistage stratified random sample while in the rural region the sample was selected from all ten rural regions of Birjand County by simple random sampling. The rural region sampling was based on the list of the aged population which were under the coverage of the rural health center. Sociodemographic, past medical history, lifestyle, sleep, activities of daily living, cognitive function, quality of life, and social capital were evaluated by interviewing with the participants and one of the informants. Anthropometric measures, electrocardiography, and interpretation of ophthalmologic examination were carried out by experts. Fasting Blood samples were collected and bio-banked in − 80 °C. then finally biochemical and hematologic markers were measured.

Results

This is the protocol of stage one baseline of Birjand Longitudinal Aging Study (BLAS). The BLAS is an enjoining study, the first phase of its baseline was carried out on a community- dwelling aged population sample ≥ 60 years who were residents in urban and rural regions of Birjand County. This is a community based prospective cohort study with at least 10 years follow up of participants. The data for 65% of older subjects (response rate = 65%) that lived in clusters were collected.

Conclusions

This study can help scientists to recognize some risk factors related to the aging process and also aware policymakers about the necessity to create heath care services at regional and even national levels.

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Acknowledgments

This study was funded by EMRI, BUMS, and the Ministry of Health of Iran. The data of this study was gathered on the supervising of SDHRC of BUMS. The authors would like to thank the financial supports by the Elderly Health Department of the Ministry of Health and Medical Education, Deputy of Management Development and Resources of Birjand University of Medical Sciences and all of their professional colleagues, Birjand University of Medical Sciences Research and Technology Assistants, Colleagues from the Elderly Health Group of Birjand Health Deputy, particularly Head of Birjand Health Center Dear Dr. Zanguee, The Expert of Birjand Elderly Health Center Ms. Mesgar, Colleagues from Birjand Comprehensive Rural Health Services, Colleagues from colleagues in Transporting System of Birjand University of Medical Sciences, All Questioners and also Elderly people participated in this study and their family.

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Authors and Affiliations

  1. Social Determinants of Health Research Center, Birjand University of Medical Sciences, Birjand, Iran

    Mitra Moodi, Mohammad Reza Miri, Gholamreza Sharifzadeh, Alireza Ehsanbakhsh, Gholam Hossain Yaghoobi, Masoumeh Khorashadizadeh, Somayeh Mohtashami, Kambiz Mehdizadeh, Galileh Ahmadi & Huriye Khodbakhshi

  2. School of Health, Birjand University of Medical Sciences, Birjand, Iran

    Mitra Moodi, Mohammad Reza Miri & Gholamreza Sharifzadeh

  3. Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran

    Mohammad Dehghani Firoozabadi, Tooba Kazemi, Kazem Ghaemi, Asghar Zarban, Ebrahim Mirimoghadam & Mohamad Hossein Davari

  4. School of Medicine, Birjand University of Medical Sciences, Birjand, Iran

    Mohammad Dehghani Firoozabadi, Tooba Kazemi, Asghar Zarban, Ebrahim Mirimoghadam, Aliakbar Esmaeili, Mahyar Mohammadifard, Alireza Ehsanbakhsh, Zahra Ahmadi, Gholam Hossain Yaghoobi, Seyed Abbas Hosseinirad, Mohamad Hossein Davari, Behroz Heydari, Malihe Nikandish & Amir Norouzpour

  5. Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

    Moloud Payab

  6. Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran

    Kazem Ghaemi & Saeed Naseri

  7. Elderly Health Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

    Hosein Fakhrzadeh, Seyed Masoud Arzaghi, Huriye Soltani & Farshad Sharifi

  8. Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

    Mahbube Ebrahimpur & Bagher Larijan

  9. Department of Computer Sciences, Shahid Behesthi University, Tehran, Iran

    Ali Sharifi

  10. Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

    Motahareh Sheikh Hosseini

  11. Medical Toxicology & Drug Abuse Research Center, Birjand University of Medical Sciences, Birjand, Iran

    Aliakbar Esmaeili

Authors
  1. Mitra Moodi
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Correspondence to Huriye Khodbakhshi or Farshad Sharifi.

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Moodi, M., Firoozabadi, M.D., Kazemi, T. et al. Birjand longitudinal aging study (BLAS): the objectives, study protocol and design (wave I: baseline data gathering). J Diabetes Metab Disord 19, 551–559 (2020). https://doi.org/10.1007/s40200-020-00504-5

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