Table 1.
Subject characteristics
| Ethnicity | |||
|---|---|---|---|
| African American | Caucasian American | p-value | |
| Baseline | |||
| N | 100 | 100 | |
| Age | 55.89 (6.02) | 55.32 (6.46) | 0.138 |
| BMI* | 29.20 (4.02) | 29.16 (3.81) | 0.816 |
| KL* | 0.29 | 0.29 | 1.000 |
| PASE* | 151.2 (80,4) | 167.1 (78.7) | 0.160 |
| Occupational act. level | 2.17 | 2.16 | 0.888 |
| 24 months follow up | |||
| N | 60 | 60 | |
| Age* | 57.7 (5,8) | 57.2 (6.3) | 0.690 |
| BMI* | 29.6 (0.56) | 29.0 (0.53) | 0.393 |
| KL* | 0.54 (0.7) | 0.48 (0.74) | 0.658 |
| PASE* | 154.4 (73.0) | 164.7 (87.8) | 0.491 |
| PASE Occupational act. level | 2.26 | 2.17 | 0.685 |
| 48 months follow up | |||
| N | 60 | 60 | |
| Age* | 59.4 (6.0) | 59.0 (6.2) | 0.733 |
| BMI* | 29.5 (0.53) | 29.3 (0.51) | 0.832 |
| KL* | 0.55 (0.77) | 0.63 (0.96) | 0.619 |
| PASE* | 159.0 (79.2) | 164.2 (80.1) | 0.727 |
| PASE Occupational act. Level** | 2.24 | 2.26 | 0.905 |
| 72 months follow up | |||
| N | 45 | 45 | |
| Age* | 61.1 (5.5) | 60.3 (6.2) | 0.388 |
| BMI* | 30.0 (3.7) | 29.3 (4.1) | 0.360 |
| KL* | 0.5 (0.68) | 0.66 (0.77) | 0.348 |
| PASE* | 156.2 (76.4) | 170.1 (81.4) | 0.407 |
| PASE Occupational act. level | 2.38 | 2.34 | 0.796 |
*
numbers are mean (SD).
BMI = body mass index, KL = Kellgren Lawrence score, PASE = physical activity scale for the elderly.
**
Graded with 1 = sitting, 2 = sitting/standing/walking, 3 = walking/handling < 50 lbs., 4 = walking/handling >50 lbs.