BMC cardiovascular disorders · 2024
Interaction of serum uric acid with overweight on hypertension: findings from the China Health and Nutrition Survey.
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Wang Heng, Fan Jia-Li
Аннотация
BACKGROUND: Both serum uric acid (SUA) levels and body mass index (BMI) are recognized as important risk factors for hypertension. The current study aimed to investigate the interaction effects between SUA levels and overweight (defined as BMI ≥ 24 kg/m2 in Chinese) on the incidence of hypertension among Chinese adults.
METHODS: 1124 hypertensive participants and 7283 non-hypertensive participants, extracted from the China Health and Nutrition Survey (CHNS), were analyzed. Participants were categorized based on their SUA levels and BMI, to investigate the interaction effects between SUA levels and overweight on hypertension.
RESULTS: In comparison with the reference group (BMI < 24 kg/m2 and in the 1st quintile of SUA), multivariable adjusted analysis demonstrated that the odds ratio (OR) (95% confidence interval, 95% CI) of hypertension for participants with overweight alone was 2.18 (1.41-3.37); for elevated SUA levels alone, the ORs (95% CIs) were 1.57 (1.08-2.30), 1.84 (1.24-2.74), 2.21 (1.47-3.32), and 2.48 (1.55-3.96) across SUA quintiles; and for the combined effect of higher SUA levels and overweight, the ORs (95% CIs) were 3.25 (2.19-4.82), 3.73 (2.51-5.55), 5.17 (3.42-7.80), and 6.21 (4.01-9.60). The relative excess risk due to interaction (RERI) was 3.26 (1.43-5.09) at the 5th quintile of SUA, indicating the presence of additive interaction between overweight and SUA levels on hypertension.
CONCLUSION: Interaction between SUA levels and overweight on hypertension exists specifically at the highest quintile (Q5, > 6.39 mg/dL) of SUA among Chinese adults. Therefore, strategies to lower SUA levels could be considered as a potential approach to mitigate hypertension risk in overweight individuals within this specific subgroup.
METHODS: 1124 hypertensive participants and 7283 non-hypertensive participants, extracted from the China Health and Nutrition Survey (CHNS), were analyzed. Participants were categorized based on their SUA levels and BMI, to investigate the interaction effects between SUA levels and overweight on hypertension.
RESULTS: In comparison with the reference group (BMI < 24 kg/m2 and in the 1st quintile of SUA), multivariable adjusted analysis demonstrated that the odds ratio (OR) (95% confidence interval, 95% CI) of hypertension for participants with overweight alone was 2.18 (1.41-3.37); for elevated SUA levels alone, the ORs (95% CIs) were 1.57 (1.08-2.30), 1.84 (1.24-2.74), 2.21 (1.47-3.32), and 2.48 (1.55-3.96) across SUA quintiles; and for the combined effect of higher SUA levels and overweight, the ORs (95% CIs) were 3.25 (2.19-4.82), 3.73 (2.51-5.55), 5.17 (3.42-7.80), and 6.21 (4.01-9.60). The relative excess risk due to interaction (RERI) was 3.26 (1.43-5.09) at the 5th quintile of SUA, indicating the presence of additive interaction between overweight and SUA levels on hypertension.
CONCLUSION: Interaction between SUA levels and overweight on hypertension exists specifically at the highest quintile (Q5, > 6.39 mg/dL) of SUA among Chinese adults. Therefore, strategies to lower SUA levels could be considered as a potential approach to mitigate hypertension risk in overweight individuals within this specific subgroup.