Figure 2.

Changes in the odds ratio of moderate to severe sleep-disordered breathing according to elevation in serum uric acid levels, adjusted for confounders. The odds ratio for moderate to severe sleep-disordered breathing is described, compared to sUA < 4 mg/dL. Moderate to severe SDB was defined as 15 ≤ oxygen desaturation index 3%. In females, the odds ratio is adjusted for age (≧60 years old), obesity, lifestyle factors (smoking, alcohol consumption), and menopausal status. In males, adjusted for age (≧60 years), obesity, and lifestyle factors (smoking, alcohol consumption). Squares indicate the odds ratio and bars indicate the 95% confidence interval. sUA, serum uric acid; CI, confidence interval; MS-SDB, moderate to severe sleep-disordered breathing.