Table 1. Weighted characteristics of the study variables, 2005-2006 NHANES (N = 2524) .
| Variable | Point estimate | 95% CI |
| Age, mean years | 46.2 | 44.5-47.9 |
| Female, % | 50.8 | |
| PSBB index, mean | 9.5 | 9.2-9.7 |
| HRQOL, mean | 0.35 | 0.31-0.39 |
| HRQOL, % score | ||
| 0 | 76.3 | |
| 1 | 15.7 | |
| 2 | 4.4 | |
| 3 | 2.7 | |
| 4 | 0.9 | |
| Biological index, mean | 3.1 | 3.0-3.3 |
| Biological index, % score | ||
| 0 | 1.1 | |
| 1 | 7.9 | |
| 2 | 20.4 | |
| 3 | 30.4 | |
| 4 | 24.6 | |
| 5 | 15.6 | |
| Behavioral index, mean | 2.1 | 2.0-2.3 |
| Behavioral index, % score | ||
| 0 | 5.1 | |
| 1 | 22.2 | |
| 2 | 33.1 | |
| 3 | 29.0 | |
| 4 | 10.5 | |
| Socioeconomic index, mean | 3.1 | 3.0-3.3 |
| Socioeconomic index, % score | ||
| 0 | 0.7 | |
| 1 | 4.6 | |
| 2 | 15.2 | |
| 3 | 33.5 | |
| 4 | 46.0 | |
| Depression, % | 4.7 |
Abbreviations: PSBB, psycho-socioeconomic bio-behavioral; HRQOL, health-related quality of life.