The genetic and observational nexus between diabetes and arthritis: a national health survey and mendelian
Peng Zhang1, Wanbo Zhu2, Yongkang Wang3
1Department of Orthopedics, The Affiliated Provincial Hospital of Anhui Medical University, Anhui Medical University, Hefei, China.
Background:
Diabetes mellitus (DM) and arthritis are prevalent conditions worldwide. The intricate relationship between these two conditions, especially in the context of various subtypes of arthritis, remains a topic of interest.
Objective:
To investigate the relationship between diabetes and arthritis, with a focus on Rheumatoid Arthritis (RA), using data from the National Health and Nutrition Examination Survey (NHANES) and Mendelian Randomization (MR) analysis.
Methods:
Data from six consecutive NHANES cycles from 2007 to 2018 were analyzed, involving 30,062 participants after applying exclusion criteria. The association between diabetes and arthritis was assessed using logistic regression. MR was employed to determine the causal relationship between the two conditions using Genome-Wide Association Study (GWAS) data.
Results:
The prevalence of arthritis in diabetic patients was almost twice that of non-diabetic patients. Logistic regression showed a significant gross association between arthritis and diabetes with an OR of 2.90 (95% CI: 2.66-3.16). After adjusting for age, gender, race, and other factors, the association yielded an OR of 1.14 (95% CI: 1.00-1.29, p < 0.05). MR analyses indicated a significant association between Type 1 Diabetes and RA (OR = 1.407, p = 0.002), but no significant correlation was observed for Type 2 Diabetes.
Conclusion:
There is an association between diabetes and arthritis, with potential genetic links between Type 1 Diabetes and RA.
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