Table 1.

Characteristics of the Study Cohort

	All (N=28,033)	Male (N=18,612)	Female (N=9,421)
Age at cohort entry
Mean (SD)	40.5 (12.4)	42.7 (11.7)	36.1 (12.6)
18–24 years, N (%)	3,491 (12.5)	1,320 (7.1)	2,171 (23.0)
25–34 years, N (%)	5,874 (21.0)	3,320 (17.8)	2,554 (27.1)
35–44 years, N (%)	7,930 (28.3)	5,663 (30.4)	2,267 (24.1)
45–54 years, N (%)	7,131 (25.4)	5,483 (29.5)	1,648 (17.5)
55–64 years, N (%)	2,796 (10.0)	2,217 (11.9)	579 (6.2)
65–74 years, N (%)	644 (2.3)	500 (2.7)	144 (1.5)
75–84 years, N (%)	149 (0.5)	100 (0.5)	49 (0.5)
≥85 years, N (%)	18 (0.1)	9 (0.1)	9 (0.1)
Sex, N (%)
Male	18,612 (66.4)	18,612 (100)	-
Female	9,421 (33.6)	-	9,421 (100)
Race/ethnicity, N (%)
White, non-Hispanic	11,912 (42.5)	8,476 (45.5)	3,436 (36.5)
Black, non-Hispanic	8,066 (28.8)	5,262 (28.3)	2,804 (29.8)
Hispanic	5,301 (18.9)	3,239 (17.4)	2,062 (21.9)
Other/unknown	2,754 (9.8)	1,635 (8.8)	1,119 (11.9)