Table A1.

Descriptive Characteristics of the MEC

	No. of MEC Subjects
Characteristic	Controls	Cases
Ethnicity:
African American	664	635
Japanese	476	422
Latino	574	576
White	446	403
Age (in years):
<60	246	223
60–64	305	285
65–70	608	578
>70	1,001	950
Disease severity:
High		686
Low		1,239