Table 6.

The association between dietary protein (g) 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
Dietary protein (g)	0.004 (0.003, 0.004) < 0.00001	− 0.001 (− 0.002, − 0.000) 0.00307	−0.001 (− 0.002, 0.000) 0.12523
Dietary protein categories
Q1 (0.01–49.79 g)	Reference	Reference	Reference
Q2 (49.80–70.88 g)	−0.028 (− 0.139, 0.083) 0.62399	−0.106 (− 0.205, − 0.007) 0.03543	−0.070 (− 0.178, 0.037) 0.20139
Q3 (70.89–98.57 g)	0.264 (0.155, 0.373) < 0.00001	0.013 (− 0.085, 0.110) 0.79922	0.069 (− 0.045, 0.183) 0.23456
Q4 (98.58–545.20 g)	0.448 (0.341, 0.554) < 0.00001	− 0.084 (− 0.183, 0.016) 0.09949	−0.011 (− 0.150, 0.127) 0.87306
Subgroup analysis stratified by gender
Male	−0.001 (− 0.002, − 0.000) 0.01170	−0.001 (− 0.002, − 0.000) 0.01478	−0.002 (− 0.004, − 0.000) 0.01696
Female	−0.002 (− 0.003, − 0.000) 0.02719	−0.001 (− 0.003, 0.000) 0.05537	0.000 (− 0.002, 0.002) 0.73194
Subgroup analysis stratified by race/ethnicity
Mexican American	0.002 (−0.000, 0.004) 0.12294	− 0.003 (− 0.005, − 0.001) 0.00479	−0.004 (− 0.008, − 0.001) 0.01599
Other Hispanic	0.003 (0.001, 0.006) 0.00754	−0.001 (− 0.004, 0.001) 0.19567	−0.005 (− 0.009, − 0.000) 0.03886
Non-Hispanic White	0.004 (0.003, 0.006) < 0.00001	−0.001 (− 0.003, 0.000) 0.12136	−0.001 (− 0.003, 0.001) 0.31388
Non-Hispanic Black	0.001 (− 0.001, 0.003) 0.45050	−0.002 (− 0.004, 0.000) 0.06558	0.001 (− 0.002, 0.005) 0.43506
Other races	0.006 (0.004, 0.008) < 0.00001	0.001 (− 0.001, 0.003) 0.43113	0.001 (− 0.002, 0.004) 0.44124

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, weight, height, body mass index, waist circumference, hip circumference, 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