Association between Glycosylated Hemoglobin and Serum Uric Acid: A US NHANES 2011–2020

Table 3

Threshold effect analysis of HbA1c on SUA in males using the two-piecewise linear regression model.

Serum uric acid	Adjusted β (95% CI), value
Male
Model 1: fitting model by standard linear regression	−10.38 (−12.51, −8.24) <0.0001
Model 2: fitting model by two-piecewise linear regression
Inflection point	6.4%
Glycosylated hemoglobin <6.4 (%)	0.27 (−5.72, 6.27) 0.9286
Glycosylated hemoglobin >6.4 (%)	−14.13 (−17.03, −11.22) <0.0001
for the log-likelihood ratio test	<0.001

Age, race, education level, the ratio of family income to poverty, BMI, energy intake, protein intake, carbohydrate intake, dietary fiber intake, total fat intake, LDL-C, HDL-C, TG, TCHO, urine albumin, urine creatinine, albumin creatinine ratio, SBP, DBP, heavy alcohol consumption, smoking status, and minutes sedentary activity were adjusted.