Table 1.

Characteristics of PD cases and controls in the consortium study.

Characteristic	Overall		PEAKa		PEGb		FAMEc		COLUMBIA		HAASd
	Cases	Ctrl	Cases	Ctrl	Cases	Ctrl	Cases	Ctrl	Cases	Ctrl	Cases	Ctrl
Total Number	1325	1735	578	630	279	254	100	367	296	299	72	185
Male (%)	61.1	65.4	61.8	63.0	54.5	52.0	74.0	76.3	52.4	47.2	100.0	100.0
Agee
≤ 60	37.2	24.2	43.3	42.1	22.6	29.5	49.0	10.9	41.9	6.0	9.7	11.4
> 60	62.8	75.9	56.8	57.9	77.4	70.5	51.0	89.1	58.1	94.0	90.3	88.7
Mean age	64.9	68.4	64.3	64.6	67.6	65.8	62.0	69.6	61.9	72.9	75.2	75.5
Race/ethnicity
African American (%)	2.2	3.8	2.8	5.7	1.1	3.5	2.0	1.6	2.7	5.0	0.0	0.0
Asian (%)	9.1	13.0	7.4	5.1	1.8	3.5	0.0	0.0	0.0	0.0	100.0	100.0
White Hispanic	10.6	9.5	8.3	7.3	10.4	7.5	1.0	0.5	21.3	32.4	0.0	0.0
White, non-Hispanic (%)	78.1	73.7	81.5	81.9	86.7	85.4	97.0	97.8	76.0	62.5	0.0	0.0
Family history of PDf (%)	10.4	5.9	10.4	2.9	12.5	11.8	13.7	7.9	6.0	5.2	4.4	5.3
Smoking status
Never (%)	54.3	46.8	52.1	45.8	52.9	40.6	74.5	61.8	56.1	43.6	43.1	34.4
Former (%)	41.2	41.3	44.3	41.2	40.3	51.2	24.5	31.5	39.5	41.8	45.8	45.9
Current (%)	4.7	12.0	3.6	13.0	6.8	8.3	1.0	6.7	4.4	14.5	11.1	19.7

The totals for the variables may not equal the number of cases and controls because of missing values,

^aParkinsonism Epidemiology at Kaiser,

^bParkinson’s disease Epidemiology and Genetics,

^cFarming and Moving Evaluation,

^dHonolulu Asia Aging Study,

^eAge is age of diagnosis for PD cases,

^fOne or more first degree relatives with PD.