Fig 1.
The Quick Physical Activity Rating (QPAR).
Table 1.
Sample characteristics (n = 390).
Table 2.
QPAR item distributions, inter-item, and item-total correlations.
Table 3.
QPAR scale score features, distribution, and internal-consistency reliability statistics.
Table 4.
Concurrent validity with QPAR.
Table 5.
Strength of association of the QPAR items with outcome measures.
Fig 2.
Receiver operator characteristics curve for QPAR.
We tested the ability of the QPAR to discriminate between individuals with impaired physical functionality (mPPT), falls risk (TUG) and the presence of frailty (CHSA rating). Panel A: The QPAR demonstrated good discrimination between normal and impaired physical functionality as determined by mPPT scores with an AUC 0.747 (95%CI: 0.69–0.79, p < .001). Panel B: The QPAR showed good discrimination between low and increased falls risk determined by TUG times with an AUC 0.730 (95% CI: 0.67–0.79, p < .001). Panel C: The QPAR demonstrated good discrimination between individuals with and without frailty by CHSA staging with an AUC 0.769 (95% CI: 0.72–0.82, p < .001).
Table 6.
QPAR and mPPT scores by sociodemographic characteristics, CDR staging, and dementia etiology.