Table 4.

Interval Regression Results for On-Time and Movement Tradeoffs^a

Benefit	On-Time (Hours)		On-Time (Hours)		On-Time (Hours)		Movement (Scale of 10)		Movement (Scale of 10)		Movement (Scale of 10)
Risk	Depression		Brain Bleed		Death		Depression		Brain Bleed		Death
N	n = 612		n = 576		n = 594		n = 663		n = 666		n = 679
Covariate	Coeff.	SE	Coeff.	SE	Coeff.	SE	Coeff.	SE	Coeff.	SE	Coeff.	SE
Benefit	2.65	0.40	0.47	0.09	0.18	0.05	4.09	0.47	0.90	0.11	0.36	0.06
Benefit * 61–66 years	−0.99	0.45	−0.08	0.10	0.11	0.06	−0.49	0.59	−0.15	0.14	0.15	0.07
Benefit * 67–71 years	−0.45	0.41	0.06	0.10	0.16	0.06	0.24	0.62	−0.16	0.14	0.03	0.07
Benefit * >71 years	−0.99	0.45	−0.01	0.11	0.13	0.07	−0.26	0.58	0.01	0.14	0.07	0.07
Nonambulatory	2.32	1.73	0.06	0.40	−0.08	0.24	5.10	1.64	0.93	0.40	0.47	0.21
Cognitive impairment	0.00	1.14	0.23	0.28	0.27	0.16	−0.28	1.11	0.29	0.26	0.27	0.14
DBS	3.98	2.01	0.78	0.51	0.45	0.26	11.35	2.17	0.46	0.54	0.61	0.27
Dyskinesia	0.88	1.25	0.37	0.30	0.43	0.17	−2.10	1.20	−0.02	0.30	−0.04	0.15
Motor ≥2	3.49	1.26	0.85	0.31	0.30	0.16	—	—	—	—	—	—

DBS, deep brain stimulation.

^aBoldface values denote estimated coefficients that are significant at the 5% level.