Table 1. Subject Characteristics NHANES 1999–2004 (n = 2863).
| mean± sd or % | n | min | max | |
| Attachment Loss (mm) | 0.52±0.51 | 2863 | 0.00 | 4.69 |
| Probing Depth (mm) | 1.01±0.48 | 2863 | 0.21 | 4.76 |
| AAP Periodontal Health | ||||
| Severe | 0.31 | 9 | ||
| Moderate | 4.05 | 116 | ||
| Healthy | 95.63 | 2738 | ||
| eVO2 max (ml/kg/min) | 39.73±9.29 | 2863 | 17.99 | 92.15 |
| Age (years) | 32.87±8.51 | 2863 | 20.00 | 49.00 |
| Ethnicity | ||||
| Other | 2.72 | 78 | ||
| Hispanic or Mexican | 30.18 | 864 | ||
| Black | 18.97 | 543 | ||
| Non Hispanic White | 48.13 | 1378 | ||
| Gender | ||||
| Male | 53.68 | 1537 | ||
| Female | 46.32 | 1326 | ||
| Education | ||||
| Some college or graduate | 53.86 | 1542 | ||
| Highschool | 24.52 | 702 | ||
| Less than highschool | 21.62 | 619 | ||
| Smoking status | ||||
| Current | 26.58 | 761 | ||
| Former | 15.61 | 447 | ||
| Never | 57.81 | 1655 | ||
| Poverty-income ratio | 2.80±1.62 | 2664 | 0.00 | 5.00 |
| BMI | ||||
| Obese | 27.00 | 773 | ||
| Overweight | 33.64 | 963 | ||
| Underweight | 1.99 | 57 | ||
| Normal | 37.37 | 1070 | ||
| MET min/week overall | 1896.80±2598.66 | 2863 | ||
| High | 3311.60±3013.64 | 1010 | ||
| Moderate | 719.22±141.23 | 382 | ||
| Low | 231.65±137.96 | 588 | ||
| None | – | 883 | ||
| Hypertension | ||||
| Yes | 13.34 | 382 | ||
| No | 86.66 | 2481 | ||
| Diabetes Status | ||||
| Yes | 2.41 | 69 | ||
| No | 97.59 | 2794 | ||
| Cholesterol (mg/dL) | 191.70±39.39 | 2761 | 87.00 | 426.00 |
| Pulse (30 sec ×2 ) | 71.23±10.60 | 2863 | 44.00 | 100.00 |
| WBC count (× 109 cells/L) | 7.15±2.05 | 2788 | 2.30 | 19.50 |
| CRP (mg/dL) | 0.34±0.69 | 2772 | 0.01 | 16.50 |