BMC nephrology · 2024
Association between serum uric acid variability and mild eGFR decline in Chinese adults: a retrospective cohort study.
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Li Na, Wu Jianrong, Chen Jing, Cui Yajing, Teng Yunjie, Yang Xiaoping
Аннотация
BACKGROUND: The present retrospective cohort study focused on evaluating the effects of fluctuations in serum uric acid (SUA) on a mildly reduced glomerular filtration rate (eGFR) in a population with a normal eGFR in Urumqi, China.
METHODS: A total of 2,154 normal individuals with a normal eGFR were recruited from 2018 to 2021. This study included questionnaire surveys, physical measurements, and blood sampling. We deemed the mildly reduced eGFR to be 60-90 ml·min-1·(1.73 m2)-1. The relationship between changes in SUA levels and the eGFR was assessed.
RESULTS: (1) During the 3-year follow-up period, 433 individuals (20.10%) presented mildly reduced eGFR. (2) After stratification by the degree to which uric acid changed into five groups, the group showing the greatest change in uric acid concentration had significantly lower eGFR values than the other four groups. As the uric acid concentration (ΔSUA) increased, the degree of mild eGFR reduction (ΔeGFR) also increased (P < 0.05). When classified into five groups by the degree of eGFR change (ΔeGFR), analysis of variance revealed no statistically significant differences between baseline SUA and follow-up SUA (P > 0.05). Pearson correlation analysis showed a negative correlation between ΔSUA and ΔeGFR (r = -0.211, P < 0.01). (3) Multifactorial logistic regression, in which the endpoint event was an eGFR decreasing to 60 to 90 ml·min-1·(1.73 m2)-1, revealed that the ΔSUA was a risk factor that independently predicted a reduced eGFR (OR = 1.347, P < 0.001).
CONCLUSION: In people with a normal eGFR in Urumqi, a high SUA level is associated with a mild reduction in the eGFR.
METHODS: A total of 2,154 normal individuals with a normal eGFR were recruited from 2018 to 2021. This study included questionnaire surveys, physical measurements, and blood sampling. We deemed the mildly reduced eGFR to be 60-90 ml·min-1·(1.73 m2)-1. The relationship between changes in SUA levels and the eGFR was assessed.
RESULTS: (1) During the 3-year follow-up period, 433 individuals (20.10%) presented mildly reduced eGFR. (2) After stratification by the degree to which uric acid changed into five groups, the group showing the greatest change in uric acid concentration had significantly lower eGFR values than the other four groups. As the uric acid concentration (ΔSUA) increased, the degree of mild eGFR reduction (ΔeGFR) also increased (P < 0.05). When classified into five groups by the degree of eGFR change (ΔeGFR), analysis of variance revealed no statistically significant differences between baseline SUA and follow-up SUA (P > 0.05). Pearson correlation analysis showed a negative correlation between ΔSUA and ΔeGFR (r = -0.211, P < 0.01). (3) Multifactorial logistic regression, in which the endpoint event was an eGFR decreasing to 60 to 90 ml·min-1·(1.73 m2)-1, revealed that the ΔSUA was a risk factor that independently predicted a reduced eGFR (OR = 1.347, P < 0.001).
CONCLUSION: In people with a normal eGFR in Urumqi, a high SUA level is associated with a mild reduction in the eGFR.