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Asymptomatic Hyperuricemia Without Comorbidities Predicts Cardiometabolic Diseases: Five-Year Japanese Cohort Study.

ABSTRACT: Whether asymptomatic hyperuricemia in the absence of comorbidities increases the risk for cardiometabolic disorders and chronic kidney disease remains controversial. This study was conducted to clarify the association between asymptomatic hyperuricemia and cardiometabolic conditions. Subjects consisting of Japanese adults between 30 and 85 years of age were enrolled in the study at Center for Preventive Medicine, St Luke's International Hospital, Tokyo, and were available at enrollment (2004) and at 5-year follow-up (2009). Subjects were excluded if they were overweight or obese, hypertensive, diabetic, and dyslipidemic, had a history of gout or hyperuricemia on medications, or had chronic kidney disease as estimated glomerular filtration rate <60 mL/min per 1.73 m2 Linear and logistic regression analyses were used to examine the relationship between hyperuricemia and development of hypertension, diabetes mellitus, dyslipidemia, chronic kidney disease, and overweight/obesity (unadjusted and adjusted for age, sex, smoking, drinking habits, baseline estimated glomerular filtration rate, and body mass index). Five thousand eight hundred and ninety-nine subjects without comorbidities (mean age of 47±10 years, 1864 men) were followed for 5 years. Hyperuricemia (defined as >7 mg/dL in men and ?6 mg/dL in women) was associated with increased cumulative incidence of hypertension (14.9% versus 6.1%; P<0.001), dyslipidemia (23.1% versus 15.5%; P<0.001), chronic kidney disease (19.0% versus 10.7%; P<0.001), and overweight/obesity (8.9% versus 3.0%; P<0.001), while diabetes mellitus (1.7% versus 0.9%; P=0.087) showed a trend but did not reach statistical significance. In conclusion, asymptomatic hyperuricemia carries a significant risk for developing cardiometabolic conditions in Japanese individual without comorbidities.

SUBMITTER: Kuwabara M

PROVIDER: S-EPMC5426964 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature

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Asymptomatic Hyperuricemia Without Comorbidities Predicts Cardiometabolic Diseases: Five-Year Japanese Cohort Study.

Kuwabara Masanari M Niwa Koichiro K Hisatome Ichiro I Nakagawa Takahiko T Roncal-Jimenez Carlos A CA Andres-Hernando Ana A Bjornstad Petter P Jensen Thomas T Sato Yuka Y Milagres Tamara T Garcia Gabriela G Ohno Minoru M Lanaspa Miguel A MA Johnson Richard J RJ

Hypertension (Dallas, Tex. : 1979) 20170410 6

Whether asymptomatic hyperuricemia in the absence of comorbidities increases the risk for cardiometabolic disorders and chronic kidney disease remains controversial. This study was conducted to clarify the association between asymptomatic hyperuricemia and cardiometabolic conditions. Subjects consisting of Japanese adults between 30 and 85 years of age were enrolled in the study at Center for Preventive Medicine, St Luke's International Hospital, Tokyo, and were available at enrollment (2004) an ...[more]

PMID: 28396536

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Project description:BackgroundAlthough gout is rare in children, chronic sustained hyperuricemia can lead to monosodium urate deposits progressing to gout, just as in adults. This study assessed prevalence and characteristics of gout and asymptomatic hyperuricemia, and incidence of gouty arthritis in the pediatric population, using data from Japanese health insurance claims. The diagnosis and treatment of pediatric gout and hyperuricemia were analyzed, and specific characteristics of those patients were assessed. Since Japanese guidelines recommend treatment with uric acid lowering drugs for asymptomatic hyperuricemia as well as for gout, these data were also used to investigate the real-world use of uric acid lowering drugs in a pediatric population.MethodsThis cross-sectional study was based on a 2016-2017 Japanese health insurance claims database, one of the largest epidemiology claims databases available in Japan, which included 356,790 males and 339,487 females 0-18?years of age. Outcomes were measured for prevalence, patient characteristics, treatment with uric acid lowering drugs for gout and asymptomatic hyperuricemia, and prevalence and incidence of gouty arthritis. Because uric acid can be elevated by some forms of chemotherapy, data from patients under treatment for malignancies were excluded from consideration.ResultsTotal prevalence of gout and asymptomatic hyperuricemia in 0-18?year-olds was 0.040% (276/696,277 patients), with gout prevalence at 0.007% (48/696,277) and asymptomatic hyperuricemia at 0.033% (228/696,277). Prevalence of gout and asymptomatic hyperuricemia was highest in adolescent males, at 0.135% (176/130,823). The most common comorbidities for gout and asymptomatic hyperuricemia were metabolic syndrome at 42.8% (118/276) and kidney disease at 34.8% (96/276). Of the patients diagnosed with gout or asymptomatic hyperuricemia, 35.1% (97/276) were treated with uric acid lowering drugs. Gouty arthritis developed in 43.8% (21/48) of gout patients during the study, at an incidence of 0.65 flares/person-year.ConclusionsEven the pediatric population could be affected by asymptomatic hyperuricemia, gout, and gouty arthritis, and uric acid lowering drugs are being used in this population even though those drugs have not been approved for pediatric indications. Such off-label use may indicate a potential need for therapeutic agents in this population.Trial registrationUMIN000036029 .

Project description:BackgroundOur previous research showed that uric acid lowering therapy (ULT) for gout and hyperuricemia is being prescribed for pediatric patients even though these drugs have not been approved for use in children. However, the actual clinical situation has not been clearly elucidated. In this paper, we provide an in-depth look at the details of actual clinical practice.MethodsThis retrospective cross-sectional study accessed health insurance data for 696,277 children from April 2016 through March 2017 to identify pediatric patients with gout or asymptomatic hyperuricemia, calculate the proportion of patients prescribed ULTs, and analyze population characteristics. Adherence and mean dose for febuxostat and allopurinol, the most commonly prescribed drugs, were also analyzed.ResultsAmong children with gout or asymptomatic hyperuricemia, we found that 35.1% (97/276) were prescribed ULT. This proportion increased with age, especially among males. By comorbidity, ULT was prescribed to 47.9% (46/96) of patients with kidney disease, 41.3% (26/63) for cardiovascular disease, 40.0% (6/15) for Down syndrome, and 27.1% (32/118) for metabolic syndrome. In patients with kidney disease, febuxostat was prescribed more than twice as frequently as allopurinol (28 vs. 12). Median values for the medication possession ratio (MPR) of febuxostat and allopurinol were 70.1 and 76.7%, respectively, and prescriptions were continued for a relatively long period for both drugs. Both drugs were prescribed at about half the adult dose for patients 6-11 years old and about the same as the adult dose for patients 12-18 years old.ConclusionsThis study showed that the continuous management of serum uric acid is being explored using off-label use of ULT in pediatric patients with gout or asymptomatic hyperuricemia in Japan. Drug selection is based on patient characteristics such as sex, age, and comorbidities, and pediatric dosage is based on usage experience in adults. To develop appropriate pediatric ULT, clinical trials are needed on the efficacy and safety of ULT in the pediatric population.Trial registrationUMIN000036029 .

Dataset Information

Asymptomatic Hyperuricemia Without Comorbidities Predicts Cardiometabolic Diseases: Five-Year Japanese Cohort Study.

Publications

Asymptomatic Hyperuricemia Without Comorbidities Predicts Cardiometabolic Diseases: Five-Year Japanese Cohort Study.

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