Figure 4
Restricted cubic spline models for log odds ratios of DKD versus serum Mb on a continuous scale. Analyses were adjusted for gender, age, BMI, hyperlipidemia, hypertension, ACCI, and hospitalization date. (A) The red solid line is the multivariable adjusted log odds ratio, and the shaded area shows the 95% confidence interval derived from restricted cubic spline regressions with four knots. The red dashed curve represents the distribution density of the population with different serum Mb levels. (B) The orange and blue solid lines are the multivariable adjusted log odds ratio for female and male subgroups, respectively, and the shaded areas show the 95% confidence intervals derived from restricted cubic spline regressions with four knots. The orange and blue dashed curves show the distribution density of populations with different serum Mb levels in female and male subgroups, respectively.
