Table 1.

Attributes in the Threshold Technique Scenarios

Attribute		Benefit		Potential Threshold Values
Category	Label	Size of Benefit	Eligible Range of Baseline Values	Baseline Level	Alternate Levels
Benefits	Hours of “off-time” each day	50% reduction in off-time from baseline	0–13 hours
	Severity of movement symptoms	50% reduction in self-reported rating of average severity of movement symptoms during the past week	3–10 rating
	Severity of pain	50% reduction in self-report rating of average pain severity during the past week	3–10 rating
	Difficulty thinking clearly, getting organized, or making plans	50% reduction in self-reported difficulty thinking clearly, getting organized, or making plans during the past week	3–10 rating
	Number of pills you need to take	50% reduction in self-reported number of pills or tablets taken each day to treat PD and the side effects of PD medicines	≥3 pills per day
Risks of Harm	Risk of getting depression or anxiety after getting the device			20%	10% 15% 30% 40%
	Risk of having bleeding in the brain after getting the device			4%	2% 3% 6% 8%
	Risk of dying within 1 year after getting the device			2%	1% 3% 4%
Wait Time	Time until you get the device			3 years	1 year 2 years 5 years 6 years