FGF23 and androgen insensitivity syndrome: The multivariate Cox analysis revealed that the elevated baseline serum FGF23 levels (HR: 3.731, 95% CI: 2.157-6.452) were a significant predictor of MACCEs in AIS patients.<h4>Conclusion</h4>Elevated baseline serum FGF23 level was considered a valid predictor of MACCEs in patients with AIS.