LRRK2 and drug-induced dyskinesia: Regarding motor complications, motor fluctuations were more common in PD-LRRK2 (Chi-squared test: χ2 = 4.2, df = 1, 95% CI = 0.02–0.44, P = 0.039) and there was also a tendency towards a higher rate of dyskinesia in PD-LRRK2 (Chi-squared test: χ2 = 3.2, df = 1, 95% CI = −0.03–0.38, P = 0.071).