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Demographic Characteristics of Sample
| All Subjects (N = 41,467) | No Arthritis Diagnosis (N = 30,544) | Arthritis Diagnosis (N = 10,923) | |
| Male (%) | 23.6 | 17.3 | 25.8 |
| Mean Age (SD) | 79.1 (6.9) | 79.9 (6.8) | 78.8 (6.9) |
| Mean (SD) Annual Income | $11,108 (3,008) | $10,998 (2,894) | $11,114 (3,048) |
| White (%) | 93.6 | 93.1 | 93.8 |
| Married (%) | 16.9 | 14.2 | 17.8 |
| Community-Dwelling (%) | 96.3 | 95.6 | 96.5 |
| Mean (SD) Charlson Comorbidity Score | 2.1 (1.6) | 2.5 (1.5) | 2.0 (1.5) |
*All comparisons significant at the p < 0.01 level.
