TABLE 4.

Threshold effect analysis of WWI on albuminuria using a two-piecewise linear regression model.

	Male	Female
Fitting by standard linear model
OR1 (95% CI2)	1.43 (1.22, 1.68)	1.19 (1.06, 1.34)
P-value	< 0.0001	0.0036
Fitting by two-piecewise linear model
Breakpoint (K)	9.88	10.93
OR1 (< 11.11)	0.69 (0.32, 1.50) 0.3529	0.79 (0.61, 1.02) 0.0726
OR2 (> 11.11)	1.49 (1.26, 1.76) < 0.0001	1.39 (1.20, 1.61) < 0.0001
OR2/OR1	2.15 (0.96, 4.79) 0.0624	1.75 (1.27, 2.41) 0.0006
Logarithmic likelihood ratio test P-value	0.077	< 0.001

Age, race, education level, body mass index, serum creatinine, serum uric acid, SBP, DBP, total cholesterol, triglycerides, fasting plasma glucose, hemoglobin A1c, HDL-C, LDL-C, ALT, AST, smoking, hypertension, and diabetes status were adjusted.

¹OR: Odds ratio.

²95% CI: 95% confidence interval.