Table 1: Baseline Characteristics of the Study Population.
| Age (mean, SD) | ||
| Years | 47.9 | 18.5 |
| Gender (n, %) | ||
| Male | 300 | 44.4% |
| Female | 375 | 55.6% |
| Ethnicity (n, %) | ||
| Caucasian | 474 | 70.2% |
| African American | 41 | 6.1% |
| Asian | 6 | 0.9% |
| Others | 21 | 3.1% |
| Declined/Not Known | 133 | 19.7% |
| Insurance (n, %) | ||
| Medicare and Medicaid | 435 | 64.4% |
| Commercial | 160 | 23.7% |
| Self-Pay | 80 | 11.9% |