Table 2.
Median Differences in Weekly Moderate-to-Vigorous Physical Activity Minutes per Number of Prescriptions
| Model 1 | Model 2 | Model 3 | |
|---|---|---|---|
| Characteristic | Median difference (95% CI) | Median difference (95% CI) | Median difference (95% CI) |
| Number of Prescriptions | −8.5 (−10.1, −7.0) | −4.1 (−5.8, −2.9) | −3.6 (−4.8, −2.1) |
| Average Daily Wear Time, hours | 18.0 (14.4, 21.8) | 8.9 (6.5, 12.3) | 8.1 (5.7, 11.2) |
| Age, yrs | −4.4 (−4.9, −3.9) | −4.4 (−4.8, −3.9) | |
| Male vs Female* | 42.7 (32.3, 51.3) | 44.1 (34.3, 53.5) | |
| Non-White vs White* | −13.8 (−24.6, −7.0) | −10.2 (−22.0, 0.4) | |
| BMI, kg/m2 | |||
| Under/Normal Weight | Reference | Reference | |
| Overweight | −19.7 (−29.9, −9.5) | −17.4 (−29.9, −8.4) | |
| Obese | −43.2 (−52.1, −32.5) | −40.1 (−52.2, −29.8) | |
| High Depressive Symptoms | −4.3 (−15.3, 5.7) | ||
| WOMAC Pain Scale | −1.4 (−2.5, −0.4) | ||
| KL Grade | |||
| 0 | Reference | ||
| 1 | −3.4 (−13.5, 12.7) | ||
| 2 | 4.0 (−6.8, 17.4) | ||
| 3 | 0.9 (−9.6, 14.9) | ||
| 4 | −7.4 (−18.9, 8.2) | ||
| Presence of Comorbidities | −6.6 (−15.1, 1.8) |
*
Values for number of prescriptions represent median change of weekly moderate-to-vigorous physical activity minutes with one unit increase. Female and White were the reference groups. Depressed was classified as a CES-D score > 16. BMI = body mass index; Overweight had a BMI between 25 and 30 kg/m2; Obese had BMI values greater than 30 kg/m2; WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index; KL= Kellgren/Lawrence