Retrospective Study
Copyright ©The Author(s) 2024.
World J Diabetes. Sep 15, 2024; 15(9): 1903-1915
Published online Sep 15, 2024. doi: 10.4239/wjd.v15.i9.1903
Table 4 Non-linearity addressed by a two-piecewise linear regression model
For exposure: Age
SFCT (μm)
Outcome, Model
β
95%CI
P value
Fitting model by standardized linear regression-1.68-2.97 to -0.390.0117
Fitting model by two-piecewise linear regression
Inflection point of age54.00
    ≤ 542.00-0.16 to 4.170.0712
    > 54-4.89 -6.87 to -2.90< 0.0001
Log likelihood ratio test< 0.0010