Table 1.
Demographic and Clinical Characteristics
| Characteristics | White (n=480) | African American (n=459) | P value |
|---|---|---|---|
| Female | 4.4% | 2.0% | 0.04 |
| Age | <0.01 | ||
| 50–59 | 49.1% | 71.4% | |
| 60–69 | 27.3% | 20.5% | |
| 70–79 | 23.6% | 8.1% | |
| Education | <0.01 | ||
| <High school | 10.4% | 10.9% | |
| High school/GED | 58.3% | 67.5% | |
| ≥Associates Degree | 31.3% | 21.6% | |
| Income | <0.01 | ||
| <$15,000 | 31.2% | 47.9% | |
| $15,000–$29,999 | 30.0% | 23.5% | |
| ≥$30,000 | 29.8% | 22.7% | |
| missing data | 9.0% | 5.9% | |
| WOMACa (mean score) | 55.6 | 61.1 | <0.01 |
| SF-12 MCSb (mean score) | 44.3 | 41.5 | <0.01 |
a
Western Ontario and McMaster Osteoarthritis Index
b
Short Form-12 mental component summary