Table 1. Characteristics of the participants classified according to their baseline use of statins.
| Statins users (n=1127) |
No statins users (n=3321) |
p-value | |
|---|---|---|---|
| General characteristics | |||
| Age (years) | 64.3 (8.4) | 60.0 (9.2) | <0.0001 |
| Males (%) | 46.9 | 40.2 | <0.0001 |
| PASE (points) | 149 (75) | 167 (84) | <0.0001 |
| White race (%) | 82.1 | 79.5 | 0.05 |
| Smoking (previous/current) (%) | 51.3 | 45.3 | 0.001 |
| Graduate degree (%) | 30.3 | 31.3 | 0.55 |
| Yearly income (≥ $50,000) (%) | 57.8 | 60.1 | 0.34 |
| Knee extension (Nm) | 356 (129) | 356 (133) | 0.93 |
| Medical conditions | |||
| BMI (Kg/m2) | 29.5 (4.4) | 28.3 (4.9) | <0.0001 |
| CES-D (points) | 6.3 (6.3) | 6.6 (7.1) | 0.20 |
| Charlson co-morbidity index (points) | 0.6 (1.0) | 0.3 (0.8) | <0.0001 |
| Number of medications | 4.5 (2.6) | 2.4 (2.5) | <0.0001 |
| Osteoarthritis items (at baseline) | |||
| ROA (%) | 59.4 | 55.5 | 0.02 |
| SxOA (%) | 25.4 | 24.0 | 0.36 |
| WOMAC pain (right knee) | 0.5 (0.5) | 0.4 (0.5) | 0.001 |
| WOMAC pain (left knee) | 0.5 (0.5) | 0.4 (0.5) | 0.002 |
Notes: The data are presented as means (with standard deviations) for continuous variables and percentages for categorical outcomes.
Abbreviations: CES-D: Center for Epidemiologic Studies Depression Scale; PASE: Physical Activity Scale for the Elderly; BMI: body mass index; OA: osteoarthritis; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index.