Temporal trends in the prevalence and characteristics of hypouricaemia: a descriptive study of medical check-up and administrative claims data

We aimed to describe temporal trends in the prevalence and characteristics of hypouricaemia. We analysed medical check-up and administrative claims data to calculate hypouricaemia prevalence from 2009 to 2019. Then, using data from 2018 to 2019, we compared the characteristics of individuals with and without hypouricaemia. We also compared the characteristics of those with lower (serum uric acid [sUA] <= 1.0 mg/dL) and higher (1.0 mg/dL < sUA <= 2.0 mg/dL) hypouricaemia. In total, 1,600,290 subjects underwent medical check-ups. The age-adjusted prevalence of hypouricaemia remained stable at 0.2% overall (men, 0.1%; women, 0.4%). We identified 1704 subjects with hypouricaemia (598 men and 1106 women) among 796,508 subjects and studied their characteristics. The proportion of most pre-existing diseases, including urinary stones, was lower in those with hypouricaemia than in those without hypouricaemia. Cardio-metabolic diseases and Parkinson's disease were more frequent in men with hypouricaemia than those without hypouricaemia. Women with hypouricaemia tended to have healthier characteristics. Hypertension and dyslipidaemia were more common in the lower hypouricaemia group than in the higher hypouricaemia group. The age-adjusted prevalence of hypouricaemia remained stable over 10 years. The characteristics of hypouricaemia subjects appear to differ between the sexes and between lower and higher hypouricaemia groups.

Automated summary

This study aimed to describe the temporal trends in the prevalence and characteristics of hypouricaemia. The age-adjusted prevalence remained stable over 10 years, and the characteristics of hypouricaemia subjects appeared to differ between sexes and between lower and higher hypouricaemia groups.