Table 1. Descriptive Characteristics of the MOST Cohort at Baseline.
| Characteristic | Value | All |
|---|---|---|
| Number of Participants | 3026 | |
| Age at Baseline | Mean (SD) | 62.5 (8.1) |
| Age (decade) | 50-59 | 1167 (39%) |
| 60-69 | 1174 (39%) | |
| 70-79 | 685 (23%) | |
| Sex | Male | 1820 (60%) |
| Female | 1206 (40%) | |
| BMI (at BL) | Mean (SD) | 30.7 (6.0) |
| BMI (categorical) | Under 25 | 448 (15%) |
| 25 to under 30 | 1092 (36%) | |
| 30 or more | 1485 (49%) | |
| Race (self-reported) | White or Caucasian | 2519 (83%) |
| Black or African American | 464 (15%) | |
| Other | 43 (1%) | |
| Clinic site | UAB | 1519 (50%) |
| UI | 1507 (50%) | |
| Smoking | Never a smoker | 1674 (55%) |
| Current smoker | 197 (7%) | |
| Former smoker | 1155 (38%) | |
| Hand OA at Baseline | Frequency reported | 2377 (79%) |
| Family history of knee OA | Frequency reported | 1365 (45%) |
| Knee injury history | Frequency reported | 1270 (42%) |
| Knee surgery history | Frequency reported | 671 (22%) |
| PASE score | Mean (SD) | 174.6 (88.4) |
| Charlson comorbidity score | Mean (SD) | 0.53 (0.96) |