Table 4. Adjusted odds ratios and 95% confidence intervals for hyperuricemia.

covariate		hyperuricemia (UA ≥ 7.0 mg/dl)
G grade	G3a	1
	G3b	2.12 [1.90–2.37]
	G4	4.57 [3.92–5.32]
	G5	2.25 [1.80–2.80]
hypernatremia (Na ≥ 145 mEq/L)		1.42 [1.15–1.76]
hypokalemia (K ≤ 3.5 mEq/L)		1.43 [1.10–1.86]
season of sample collection.	Winter	1
	Spring	0.93 [0.82–1.07]
	Summer	1.12 [0.99–1.27]
	Autumn	1.04 [0.91–1.19]

Covariates: age, sex, G grade, A grade, hemoglobin level, albumin level, C-reactive protein, hypernatremia (Na ≥145 mEq/L), hypokalemia (K ≤3.5 mEq/L), and season of sample collection.

Adjusted odds ratios and 95% confidence intervals were analyzed by logistic regression analysis using each of the above factors as covariates.

Abbreviations: UA, serum uric acid; Na, serum sodium; K, serum potassium.