Table 8 Threshold effect analysis of total cholesterol on fasting blood glucose using the two-piecewise linear regression model
total cholesterol | Adjusted β (95%CI) P value |
|---|---|
Fitting by the standard linear model | -0.01 (-0.06, 0.04) 0.7618 |
Fitting by the two-piecewise linear model | |
Inflection point(K) | 5.17 |
total cholesterol < K (5.17mmol/L) | -0.19 (-0.27, -0.10) < 0.0001 |
total cholesterol > K (5.17mmol/L) | 0.21 (0.11, 0.30) < 0.0001 |
Log likelihood ratio | < 0.001 |