Table 3.

Threshold effect analysis of non-HDL cholesterol on cognitive impairment based on model II

Outcome	OR (95%CI), p
	cognitive impairment
model I
Fitting by the standard linear model	0.945 (0.897, 0.996) 0.03*
model II
Inflection point	4.83
< Inflection point	0.877 (0.819, 0.939) < 0.001***
> Inflection point	1.188 (1.034, 1.366) 0.02*
Log likelihood ratio	< 0.001***

*p < 0.05, **p < 0.01, ***p < 0.001

OR: Odds Ratio; 95%CI: 95% confidence interval