The odds ratio for exposure to L-dopa in the IPD patients with PN was 12.4 (95% confidence interval, 1.4–109.1). There were no differences between the groups in the use of other PD drugs ...
Demographics of PD subjects (age, handedness, language preference), disease duration, L-Dopa dose and disease-specific assessments such as modified Hoehn & Yahr staging and Unified Parkinson's Disease ...