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Updated: May 27, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Investigation on hyperuricemia in children with obesity or various pediatric disorders
Masaru Kubota1, Ayako Nagai, Li Tang
1Faculty of Human Life and Environment, Nara Women's University, Nara, Japan. mkubota@cc.nara-wu.ac.jp
Insights
This study establishes new serum uric acid (UA) reference values for children and finds hyperuricemia in 19.4% of obese children and 3.7% of sick children, linking it to metabolic syndrome and common illnesses.
Area of Science:
- Pediatrics
- Biochemistry
- Public Health
Background:
- Serum uric acid (UA) levels are age-dependent, necessitating specific reference values for pediatric populations.
- Hyperuricemia is a potential risk factor for metabolic and lifestyle-related disorders.
Purpose of the Study:
- To establish age-specific reference values for serum uric acid in children.
- To investigate the frequency and characteristics of hyperuricemia in obese and sick children.
- To explore the association between hyperuricemia and metabolic syndrome (MetS) in obese children.
Main Methods:
- Established age-specific serum UA reference values using 328 pediatric samples across six age groups.
- Defined hyperuricemia as serum UA levels exceeding the mean plus two standard deviations for each age group.
- Analyzed hyperuricemia prevalence in 1,687 obese children (aged 6-15) and 9,405 sick patients, assessing MetS in the obese cohort.
Main Results:
- Serum UA levels significantly increased with age, with sex differences noted in older children.
- Hyperuricemia was identified in 19.4% of obese children, with a higher prevalence of MetS among them (29.9%) compared to those without hyperuricemia (14.5%).
- Hyperuricemia occurred in 3.7% of sick patients, more frequently in males, with gastroenteritis, respiratory infections, and cardiac diseases being common associated conditions.
Conclusions:
- This study provides crucial age-specific reference values for childhood serum uric acid.
- Hyperuricemia is prevalent in both obese and sick children and is associated with metabolic syndrome.
- Findings highlight the importance of monitoring hyperuricemia in children for potential links to adult lifestyle-related diseases.
Abstract:
The present study aims at investigating the frequency and characteristics of hyperuricemia in both obese and sick children. First, we established our own reference values for serum uric acid (UA), since UA values are highly dependent upon age. In the analysis of 328 samples consisting of six different age groups: <1, 1-3, 4-6, 7-9, 10-12, and 13-15 years, the mean values for UA were found to increase significantly with an increase of age. A significant sex difference was observed only in the age group of 13-15 years. Hyperuricemia was defined as the values over the mean value plus 2 standard deviations for each age group. Next, we examined the frequency of hyperuricemia in 1,687 obese children aged 6-15 years and its relation to metabolic syndrome (MetS). A total of 328 children (19.4%) were found to have hyperuricemia. Among them, 98 children (29.9%) had MetS, whereas 197 (14.5%) out of 1,359 children without hyperuricemia had MetS. Finally, the frequency of hyperuricemia in sick patients was investigated using 13,675 samples from 9,405 patients. Hyperuricemia was seen in 348 (3.7%) patients after excluding redundant samples. The number of patients with hyperuricemia was higher in males than in females. The most common disorder causing hyperuricemia was gastroenteritis, followed by respiratory tract infection and cardiac diseases. This first comprehensive study of childhood hyperuricemia is useful for considering its relationship with hyperuricemia and life-style-related disorders occurring in adulthood.
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