Table 3 The result of the two-piecewise logistic regression model for DR
DR (OR,95%CI) | P value | |
|---|---|---|
Fitting model by standard logistic regression | 1.001 (0.991, 1.011) | 0.8555 |
Fitting model by two-piecewise logistic regression | ||
Inflection point of RC | 19.0 mg/dL | |
≤ 13.0 mg/dL | 1.194 (1.070, 1.333) | 0.0015 |
> 13.0 mg/dL | 0.995 (0.984, 1.006) | 0.3668 |
P for the log-likelihood ratio test | < 0.001 | |