Association between serum uric acid levels and lung function in the NHANES cohort (2007-2012): A cross-sectional analysis of a diverse American population

Int J Rheum Dis. 2024 Jan;27(1):e15043. doi: 10.1111/1756-185X.15043.

Abstract

Background: Hyperuricemia has been linked to various health conditions. However, the relationship between uric acid (UA) levels and lung function remains debated.

Methods: In a cross-sectional study of 6750 participants aged 20-69 from NHANES, we assessed UA levels and lung function (FVC and FEV1). We conducted regression analyses while adjusting for potential confounders.

Results: After accounting for factors like age, sex, BMI, smoking, and more, we found a negative association between UA FVC and FEV1. Specifically, for every 0.1 mg/dL increase in UA, FEV1 decreased by 15.265 mL, and FVC decreased by 24.46 mL. No association was observed with FEV1/FVC. Subgroup analyses revealed similar negative correlations among various groups, particularly in non-Hispanic Black females under 60.

Conclusion: Serum UA levels are inversely associated with FEV1 and FVC in the American population, with a notable impact on non-Hispanic Black females under 60.

Keywords: NHANES; epidemiology; general population; lung function; serum uric acid.

MeSH terms

  • Cross-Sectional Studies
  • Female
  • Forced Expiratory Volume
  • Humans
  • Lung*
  • Nutrition Surveys
  • United States / epidemiology
  • Uric Acid*
  • Vital Capacity

Substances

  • Uric Acid