Table 1.
Characteristics of individuals in OPEN and NHANES datasets.
| Variable | Mean (standard deviation) or count (percentage), OPEN | Mean (standard deviation) or count (percentage), NHANES I | Mean (standard deviation) or count (percentage), NHANES 2007–2008 |
|---|---|---|---|
| Count | 451 | 8006 | 4830 |
| Age (years) | 53.5 (8.4) | 47.0 (17.9) | 48.4 (8.4) |
| Female | 206 (45.7) | 4680 (58.4) | 2358 (48.8) |
| Race | |||
| White non-Hispanic | 371 (82.3) | 6736 (84.1) | 2234 (46.3) |
| Black non-Hispanic | 28 (6.2) | 1169 (14.6) | 1020 (21.1) |
| Hispanic, any race | 18 (4.0) | a | 1387 (28.7) |
| Other/unspecified | 34 (7.5) | 101 (1.3) | 189 (3.9) |
| Weight (kg) | 81.0 (17.6) | 69.2 (15.3) | 80.0 (20.7) |
| Body mass index (kg/m2) | 27.8 (5.2) | 24.9 (4.8) | 28.4 (6.5) |
| EIclaimed (kcal) | 2346 (808) | 1876 (884) | 2120 (1050) |
| TEE (kcal) | 2627 (556) | n/a | n/a |
aNHANES I did not track ethnicity (Hispanic vs. non-Hispanic); numbers reflect categories White, Black, and Other.