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Sleep Quality Is Associated with Vitamin B12 Status in Female Arab Students

Author

Listed:
  • Sara Al-Musharaf

    (Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11451, Saudi Arabia)

  • Alanoud Alabdulaaly

    (Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11451, Saudi Arabia)

  • Hanadi Bin Mujalli

    (Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11451, Saudi Arabia)

  • Hatoun Alshehri

    (Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11451, Saudi Arabia)

  • Hind Alajaji

    (Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11451, Saudi Arabia)

  • Rania Bogis

    (Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11451, Saudi Arabia)

  • Ruyuf Alnafisah

    (Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11451, Saudi Arabia)

  • Shaden Alfehaid

    (Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11451, Saudi Arabia)

  • Hala Alhodaib

    (Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11451, Saudi Arabia)

  • Alice M Murphy

    (Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham NG1 8NS, UK)

  • Syed Danish Hussain

    (Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia)

  • Shaun Sabico

    (Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia)

  • Philip G McTernan

    (Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham NG1 8NS, UK)

  • Nasser Al-Daghri

    (Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia)

Abstract

Studies have explored how vitamin B12 status affects sleep among elders and children, but this remains to be investigated among young adults. We used the Pittsburgh Sleep Quality Index (PSQI) to assess the association between serum vitamin B12 and sleep among female college students in Saudi Arabia. In this cross-sectional study, we enrolled 355 participants (age (years), 20.7 ± 1.5; body mass index, 23.6 kg/m 2 ± 5.2) at King Saud University, Riyadh, Saudi Arabia. Fasting blood samples were analyzed regarding the serum vitamin B12 and blood lipids. Anthropometric, socio-demographic, clinical history, stress, physical activity, and dietary data were collected. We assessed the sleep statuses of the participants using the PSQI. Around 72% of the participants were “poor” sleepers (PSQI > 5). Subgroup analysis within the tertiles showed that participants with higher vitamin B12 in the second and third tertiles reported better scores for sleep quality (B ± SE = −12.7 ± 5.6, p = 0.03; B ± SE = −32.7 ± 16.4, p = 0.05, respectively) and also reported a lower use of sleep medication (B ± SE = −21.2 ± 9.9, p = 0.03, in the second tertile only), after adjusting for the waist–hip ratio and stress. However, sleep was not found to be directly associated with either serum vitamin B12 or dietary vitamin B12. In conclusion, the serum vitamin B12 results show that the participants with higher vitamin B12 in the second and third tertiles reported better scores on the sleep quality scale and a lower use of sleep medication. However, no such associations were observed with the overall PSQI. More studies with larger sample sizes are needed to establish a direct relationship between sleep and vitamin B12.

Suggested Citation

  • Sara Al-Musharaf & Alanoud Alabdulaaly & Hanadi Bin Mujalli & Hatoun Alshehri & Hind Alajaji & Rania Bogis & Ruyuf Alnafisah & Shaden Alfehaid & Hala Alhodaib & Alice M Murphy & Syed Danish Hussain & , 2021. "Sleep Quality Is Associated with Vitamin B12 Status in Female Arab Students," IJERPH, MDPI, vol. 18(9), pages 1-13, April.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:9:p:4548-:d:543039
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    References listed on IDEAS

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    More about this item

    Keywords

    sleep difficulties; PSQI; poor sleep; sleep duration; serum vitamin B12; dietary vitamin B12;
    All these keywords.

    JEL classification:

    • B12 - Schools of Economic Thought and Methodology - - History of Economic Thought through 1925 - - - Classical (includes Adam Smith)
    • B12 - Schools of Economic Thought and Methodology - - History of Economic Thought through 1925 - - - Classical (includes Adam Smith)

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