Table 1. Remotely Collected Self-Reported Information Compared to Investigator-Reported Information.

	N	Agreement	kappa
Diagnosis: PD/nonPD1	418	95.0%	0.562
Medication: On PD medication or not2	273	96.0%	0.77
Medication: Type of PD medication	244	91.9%	0.893
Ldopa preparations	864	97.6%
DA agonists	654	90.5%
Ldopa preparations plus DA agonists	744	91.0%
Other PD medications3	194	86.5%
Dyskinesias: Present/absent		87.5%	0.502

¹Mean interval between reports is 6.55 months

²Interval between reports is ≤ 2 months

³Other PD medications include monoamine oxidase B inhibitors, catechol-o-methyl transferase inhibitors, amantadine, anticholinergics.

⁴Investigator's report of medication at baseline is gold standard.