Association between non-high-density lipoprotein to high-density lipoprotein ratio and reversion to normoglycemia in people with impaired fasting glucose: a 5-year retrospective cohort study

Table 7 The result of the two-piecewise Cox regression model

Probability of reversion to normoglycemia	HR (95%CI)	P
Fitting model by standard Cox regression	0.71 (0.69, 0.74)	< 0.0001
Fitting model by two-piecewise Cox regression
Inflection point of non-HDL-c/HDL-c ratio	3.1
≤ Inflection point	0.63 (0.59, 0.67)	< 0.0001
> Inflection point	0.78 (0.74, 0.83)	< 0.0001
P for log-likelihood ratio test		< 0.001

We adjusted gender, age, BMI, SBP, DBP, FPG, BUN, Scr, TG, LDL-c, ALT, AST, family history of diabetes, smoking and drinking status
HR, Hazard ratios; CI: confidence, Ref: reference

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