Table 1.
Demographics of research participants to whom the survey was sent compared to those who responded
| Participant characteristics | Mailed sample* | Response sample for the centers providing “mailing sample” data | ||
|---|---|---|---|---|
| N | % | N | % | |
| Ethnicity | ||||
| Hispanic | 784 | 6.70 | 120 | 6.70 |
| Non‐Hispanic | 10,848 | 93.30 | 1,684 | 93.30 |
| Race | ||||
| American Indian or Alaskan Native | 98 | 0.7 | 35 | 1.5 |
| Asian | 474 | 3.3 | 79 | 3.4 |
| Black or African American | 1,509 | 10.4 | 210 | 9.2 |
| Native Hawaiian/Pacific Islander | 45 | 0.3 | 13 | 0.6 |
| White | 10,909 | 74.8 | 1,958 | 85.3 |
| More than one race | 827 | 5.7 | ||
| Unknown/missing | 716 | 4.9 | ||
| Gender | ||||
| Female | 1,991 | 54.9 | 553 | 56.8 |
| Male | 1,507 | 41.5 | 392 | 40.2 |
| Missing | 130 | 3.6 | 29 | 3.0 |
*Data are from six centers that provided the data on ethnicity, eight centers that provided data on race, and four centers that provided data on gender.