FGF23 and diabetes mellitus: The analysis identified the serum FGF23 levels (OR 1.039, 95% confidence interval [CI] 1.012–1.067, P = 0.004) as an independent and positive factor for LEAD, along with age (OR 1.180, 95% CI 1.137–1.225, P < 0.001), diabetes duration (OR 1.103, 95% CI 1.043–1.167, P = 0.001), and current smoking (OR 2.871, 95% CI 1.497–5.507, P = 0.002; Table 2).