• Shazia Rahman Shaikh, Aneela Atta Ur Rahman, and Asadullah Makhdoom.
• Dr. Shazia Rahman Shaikh, MBBS, MPH. Department of Community Medicine and Public Health Sciences, Liaquat University of Medical and Health Sciences (LUMHS), Jamshoro, Sindh, Pakistan.
• Pak J Med Sci. 2024 May 1; 40 (5): 896900896-900.

ObjectiveTo investigate the association and risk estimation of ABO blood group distribution and clinical attributes in patients with Knee Osteoarthritis.MethodThis was a hospital-based study conducted at, Liaquat University Hospital Hyderabad from December, 2019 to December, 2022 to investigate this least researched area of highly prevalent musculoskeletal disease in Pakistan. Non-Probability Convenience Sampling was used for selecting 190 cases of confirm Knee Osteoarthritis patients diagnosed by Orthopedic surgeon based on standard clinical and radiographic criteria. Data were analyzed using IBM-SPSS version 23.0. Percentages and frequencies were counted for categorical data. Pearson Chi Square test and fisher's exact test were used to check the association and Multinomial Logistic Regression was used to estimate the risk for moderate and severe kellgren grading Knee Osteoarthritis (KOA) cases with ABO blood grouping in comparison of mild Kellgren grading.ResultsA total of 190 cases of Knee Osteoarthritis (KOA) were included in the study. Females (61.6%) and patients with age 50 and above were 40.5 % were found in greater proportion. Majority (41.6%) were classified radiologically as mild cases with O group (39.5%) and positive Rh antigen (95.8%). Strong association (p = <0.01) was found between gender, age group and ABO blood group with KOA radiological Kellgren and Lawrence score.ConclusionThere is strong relation in between radiological grading of knee osteoarthritis severity and A blood group, gender and age.Copyright: © Pakistan Journal of Medical Sciences.

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