LRRK2 and prediabetes syndrome: LRRK2-PD had higher UPSIT scores (p = 0.008), higher rates of prediabetes (p = 0.004) and higher triglyceride levels (p = 0.015) which were correlated with disease duration (r = 0.332, p = 0.036) and LEDD (r = 0.432, p < 0.001).