eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2023-09-30 16 3 1725 1731 10.13005/bpj/2751 51706 article Nasir A. Hamad 1 Lienda Bashier Eltayeb 2 Senthilvel Vasudevan 3 Priyanka Raj 4 Department of Biochemistry, College of Medicine and Health Sciences , Al-Neelain University, Sudan. National University, Oman Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University- Al-Kharj, Riyadh, KSA. Department of Epidemiology, Public Health and Biostatistics, College of Medicine and Health Sciences, National University, Oman Department of Community Medicine, Sri Venkateshwara Medical College, India. Introduction: Covid-19 vaccine is known to cause a variety of side effects. Low back pain has been reported to be associated with at least one of the COVID-19 vaccines. Objectives: The current study investigated the prevalence of chronic back pain in individuals vaccinated with AstraZeneca and Pfizer in Sultanate of Oman. Methods: This cross-sectional observational survey-based study was conducted among COVID-19 AstraZeneca and Pfizer/BioNTech vaccinated individuals in Sultanate of Oman. Two hundred participants were involved in the study. Chi square was used to analyse the association between categorical data. Data were analysed using SPSS (29^th release). Results: The prevalence of back pain among individuals vaccinated with AstraZeneca and Pfizer, was 36%. Females were more commonly affected by the back pain, especially in the 4^th decade of life. Conclusion: AstraZeneca and Pfizer is be associated with back pain, especially in females. Possible explanations require further investigations. https://biomedpharmajournal.org/vol16no3/prevalence-of-chronic-backpain-after-covid-19-astrazeneca-and-pfizer-biontech-vaccines-in-sultanate-of-oman-a-survey-based-study/ Astrazeneca Chronic Backpain COVID-19 Frequency Pfizer Vaccine