Table 4 Criterion-related concurrent and predictive validity of the PAIR
From: Assessing physical activity in inpatient rehabilitation—sensor-based validation of the PAIR
Association of the PAIR | Spearman’s rho |
Concurrent validity at admission (T1, n = 70) | |
Walking and standing activity (uptime) | 0.443 |
Walking activity | 0.457 |
Concurrent validity 2 weeks later (T2, n = 65) | |
Walking and standing activity (uptime) | 0.450 |
Walking activity | 0.525 |
PAIR in a regression model | Variance explained |
Predictive validity (T1, n = 70) | |
Walking and standing (uptime) | 29 % |
Walking activity | 46 % |
Predictive validity (T2, n = 65) | |
Walking and standing (uptime) | 25 % |
Walking activity | 33 % |