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. 2020 Dec 1:13:4689-4697.
doi: 10.2147/DMSO.S282403. eCollection 2020.

Association of Serum Uric Acid, Urea Nitrogen, and Urine Specific Gravity Levels at 16-18 Weeks of Gestation with the Risk of Gestational Diabetes Mellitus

Yan Li #  1 , Tingwei Yu #  2 , Zengyou Liu  2 , Hengying Chen  3 , Yao Liu  4 , Yuanhuan Wei  4 , Ruifang Sun  4 , Hongmei Zhang  2 , Wei Wang  2 , Yihua Lu  2 , Yingyu Zhou  1 , Guifang Deng  4 , Zheqing Zhang  1
Affiliations

Association of Serum Uric Acid, Urea Nitrogen, and Urine Specific Gravity Levels at 16-18 Weeks of Gestation with the Risk of Gestational Diabetes Mellitus

Yan Li et al. Diabetes Metab Syndr Obes. .

Abstract

Objective: To evaluate the associations of serum uric acid (UA), urea nitrogen (UN), and urine specific gravity (USG) levels in the first trimester of pregnancy with the risk of gestational diabetes mellitus (GDM).

Patients and methods: A retrospective cohort study was conducted in 1,769 pregnant women aged 31.55 ± 3.91 years. UA, UN, and USG levels were measured during the 16-18th week of gestation. GDM was diagnosed by an oral 75 g glucose tolerance test during the 24-28th week of gestation.

Results: A multivariate adjusted logistic regression analysis showed that UA levels in the highest quartile increased the risk of GDM by 55.7% (odds ratio [OR]: 1.557, 95% confidence interval [CI]: 1.055-2.298; p = 0.026) compared to those in the lowest quartile. USG levels in the second, third, and fourth quartiles increased the risk of GDM by 67.6% (95% CI: 1.090-2.421), 112.4% (95% CI: 1.446-3.119), and 94.5% (95% CI: 1.314-2.880), respectively, compared to those in the first quartile (p trend = 0.001). No significant association between UN levels and the GDM risk was observed. When the extreme composite biomarker score quartiles were compared, the adjusted OR (95% CI) for GDM was 1.909 (95% CI: 1.332-2.736). Age-stratified analyses revealed similar results in women aged ≤35 years only, but not in those aged >35 years.

Conclusion: Higher levels of UA and USG and a higher composite kidney function biomarker score during the 16-18th week of gestation were positively and independently associated with an increased risk of GDM.

Keywords: gestational diabetes mellitus; retrospective cohort study; urea nitrogen; uric acid; urine specific gravity.

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Conflict of interest statement

The authors have no conflicts of interest to declare.

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