Table 1.
Characteristics of NHANES 2003–6, (N = 5478)
| Variables | Mean | SD |
|---|---|---|
| Age (years) | 44.15 | 14.96 |
| Female | 2643 | 50.1% |
| Ethnicity/Race | ||
| Mexican American | 1182 | 8.1% |
| Other Hispanic | 186 | 3.7% |
| Non-Hispanic White | 2779 | 73.1% |
| Non-Hispanic Black | 1107 | 10.0% |
| Other Race | 224 | 5.1% |
| Smoking | ||
| Never smoker | 2773 | 49.9% |
| Ex-smoker | 1341 | 23.9% |
| Current smoker | 1364 | 26.2% |
| Current drinker | 3892 | 74.6% |
| Height (m) | 1.69 | 0.10 |
| Weight (kg) | 78.86 | 16.85 |
| Serum calcium (mg/dL) | 9.54 | 0.35 |
| Serum phosphate (mg/dL) | 3.81 | 0.55 |
| Serum parathyroid hormone (pg/mL) | 42.07 | 25.30 |
| Serum 25(OH)D (ng/mL) | 24.06 | 9.18 |
| Bone mineral density (g/cm2) | ||
| Whole body | 1.162 | 0.117 |
| Lumbar spine L1-L4 | 1.040 | 0.151 |
| Pelvis | 1.300 | 0.184 |
Weighted mean and standard deviation (SD) are reported. For categorical variables, unweighted N and weighted % are reported.