Table 2.

The association between BMI (kg/m²) and serum uric acid (mg/dL)

	Model 1 β (95% CI) P value	Model 2 β (95% CI) P value	Model 3 β (95% CI) P value
BMI (kg/m2)	0.057 (0.053, 0.062) < 0.00001	0.058 (0.053, 0.062) < 0.00001	0.059 (0.054, 0.064) < 0.00001
BMI categories
Normal BMI (<  25 kg/m2)	Reference	Reference	Reference
Overweight (25 to 30 kg/m2)	0.676 (0.586, 0.767) < 0.00001	0.484 (0.402, 0.566) < 0.00001	0.451 (0.357, 0.546) < 0.00001
Obesity (> = 30 kg/m2)	1.004 (0.920, 1.089) < 0.00001	0.896 (0.820, 0.973) < 0.00001	0.853 (0.760, 0.946) < 0.00001
Subgroup analysis stratified by gender
Male	0.063 (0.056, 0.070) < 0.00001	0.063 (0.056, 0.070) < 0.00001	0.061 (0.052, 0.070) < 0.00001
Female	0.058 (0.053, 0.063) < 0.00001	0.055 (0.050, 0.060) < 0.00001	0.057 (0.051, 0.063) < 0.00001
Subgroup analysis stratified by race/ethnicity
Mexican American	0.053 (0.039, 0.067) < 0.00001	0.057 (0.045, 0.069) < 0.00001	0.051 (0.036, 0.066) < 0.00001
Other Hispanic	0.064 (0.045, 0.083) < 0.00001	0.056 (0.040, 0.072) < 0.00001	0.055 (0.034, 0.075) < 0.00001
Non-Hispanic White	0.060 (0.052, 0.068) < 0.00001	0.057 (0.050, 0.064) < 0.00001	0.061 (0.053, 0.070) < 0.00001
Non-Hispanic Black	0.052 (0.042, 0.061) < 0.00001	0.062 (0.053, 0.070) < 0.00001	0.061 (0.051, 0.072) < 0.00001
Other races	0.063 (0.052, 0.074) < 0.00001	0.058 (0.048, 0.068) < 0.00001	0.046 (0.033, 0.059) < 0.00001

Model 1: no covariates were adjusted. Model 2: age, gender, and race/ethnicity were adjusted. Model 3: age, gender, race/ethnicity, alcohol consumption, smoking behavior, education level, marital status, the ratio of family income to poverty, energy, minutes of sedentary activity, glycohemoglobin, fasting glucose, total cholesterol, triglyceride, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, systolic blood pressure, and diastolic blood pressure were adjusted. In the subgroup analysis stratified by gender and race/ethnicity; the model is not adjusted for gender and race/ethnicity, respectively