TABLE 4.

ORs of PD and 95% CIs for Motor Skills With Stratifications by Age of Onset and Education

	OR (95% CI)*†
		Age Onset/Interview (y)		Education
Motor Skill	All Participants	≤ 60	> 60	High School or Less	More Than High School
Finger dexterity	0.86 (0.75, 0.99)	0.98 (0.72, 1.33)	0.83 (0.70, 0.97)	0.71 (0.53, 0.93)	0.94 (0.80, 1.11)
Manual dexterity	0.91 (0.78, 1.07)	1.24 (0.88, 1.75)	0.84 (0.70, 1.00)	0.89 (0.67, 1.19)	0.93 (0.78, 1.12)
Motor coordination	0.84 (0.73, 0.97)	0.93 (0.69, 1.27)	0.84 (0.71, 0.99)	0.75 (0.58, 0.98)	0.89 (0.74, 1.06)

^*Adjusted for age, gender, race/ethnicity, education, smoking.

^†OR are expressed as the difference in standard deviation units.

CI indicates confidence interval; OR, odds ratio; PD, Parkinson disease.