highly significantP < 0.001
a trend toward significanceP = 0.078
In the multivariable model, age remained a highly significant independent predictor (OR 1.09, 95% CI: 1.04–1.14, P < 0.001), while type 1 diabetes status showed a trend toward significance (OR 1.78, 95% CI: 0.94–3.39, P = 0.078).