Table 1. Participant Characteristics of the Add Health Wave IV (2008) and NHANES 2007-2008 population, Ages 24-32 years.
| Add Health, Wave IV (Home) | NHANES 2007-2008 (Clinic) | |||
|---|---|---|---|---|
|
|
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| n | % (95% CI)a | n | % (95% CI)b | |
|
|
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| Age, Mean (SD) | 14751 | 28 (2) | 805 | 28 (2) |
| Sex | ||||
| Males | 6899 | 51 (49, 52) | 399 | 51 (47, 55) |
| Females | 7852 | 49 (48, 51) | 406 | 49 (45, 53) |
| Race/Ethnicity | ||||
| White, Non-Hispanic | 7833 | 66 (60, 71) | 310 | 62 (50, 72) |
| Black, Non-Hispanic | 2958 | 15 (11, 19) | 175 | 13 (9, 18) |
| Asian/Pacific Islander, non-Hispanic | 834 | 3 (2, 5) | __ | __ |
| Other Race/Multiracial | 908 | 5 (4, 6) | 32 | 6 (3, 11) |
| Mexican | 981 | 6 (4, 9) | 196 | 13 (9, 20) |
| Other Hispanic | 1177 | 5 (3, 8) | 92 | 6 (4, 10) |
| Nativity | ||||
| U.S. Born | 13625 | 95(93, 96) | 595 | 81 (73, 87) |
| Foreign-Born | 1119 | 5(4, 7) | 210 | 19 (13, 27) |
| Education | ||||
| 0-11 years | 1134 | 9 (8, 11) | 217 | 19 (15, 24) |
| H.S. graduate/GED | 2377 | 18 (16, 20) | 192 | 23 (19, 27) |
| Some college/AA degree | 6504 | 43 (41, 45) | 232 | 31 (25, 37) |
| 4-yr college or greater | 4733 | 30 (27, 33) | 164 | 27 (21, 35) |
| Household income | ||||
| ≤ $20,000c | 1590 | 13 (11, 14) | 162 | 16 (12, 21) |
a
Percent (95% confidence interval) weighted to be representative of U.S. adolescents in grades 7-12 in the 1994-1995 school year
b
Weighted percent (95% confidence interval)
c
Federal poverty line for a family of four in 2008 = $21,200