Table 1.
Characteristics of All of Us Research Program Participants With Blood Specimens Collected From 2 January to 18 March 2020 and Available for Serologic Testing
| Characteristic | Participants, No. (%)a (N = 24 079) |
|---|---|
| Age, median (IQR), y | 53 (37–65) |
| Sex at birth | |
| Female | 13 692 (57) |
| Male | 10 100 (42) |
| Other sex at birth | 8 (0) |
| Skip, prefer not to say, or no answer | 279 (1) |
| Race and ethnicityb | |
| Asian | 630 (3) |
| Non-Hispanic Black/African American | 5712 (24) |
| Hispanic Black/African American | 81 (0) |
| Non-Hispanic white | 11 896 (49) |
| Hispanic white | 279 (1) |
| Pacific Islander | 14 (0) |
| Hispanic, Latino or Spanish | 4059 (17) |
| Other race | 785 (3) |
| Skip, prefer not to say, or no answer | 623 (3) |
| Geographic area of US residence | |
| Northeast | 6953 (29) |
| Southeast | 6092 (25) |
| Midwest | 5612 (23) |
| West | 5408 (22) |
| US territories | 14 (0) |
Abbreviation: IQR, interquartile range.
aData represent no. (%) of participants unless otherwise specified.
bAlaskan Native and American Indian participants were excluded from this analysis, at the request of tribal leaders.