Association between triglyceride-to-high-density lipoprotein cholesterol ratio and prediabetes: a cross-sectional study in Chinese non-obese people with a normal range of low-density lipoprotein cholesterol

Table 5 The result of the two-piecewise linear regression model

	Pre-DM (OR,95%CI, P)
Fitting model by standard linear regression	1.185 (1.145, 1.226) < 0.001
Fitting model by two-piecewise linear regression
Inflection point of TG/HDL-C	1.617
≤ 1.617	1.312 (1.242, 1.386) < 0.001
> 1.617	0.980 (0.898, 1.070) 0.658
P for the log-likelihood ratio test	< 0.001

We adjusted age, sex, BMI, ALT, AST, GGT, ALB, GLB, DBIL, BUN, Scr, UA, TC, LDL-C, TB
OR odds ratios, CI confidence, Ref reference, TG/HDL-C triglyceride-to-high-density lipoprotein cholesterol ratio

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