Table 3

Principal axis factor analysis, non-orthogonal rotated structure matrix loadings

ItemsFactor 1Factor 2Factor 3Uniqueness
Q.8 Problem related to health0.10530.14160.02770.7022
Q.9 Mobility aids or assistive devices−0.15400.04420.34700.7427
Q.10 Pain medications0.20650.06840.13940.6174
Q.11.1 Acute pain (activities)−0.00330.79630.01580.3111
Q.11.2 Acute pain (interference)0.07630.77010.00050.2900
Q.12.1 Chronic pain (activities)0.82140.03860.03290.2128
Q.12.2 Chronic pain (interference)0.83150.01520.00920.1969
Q.13 Daily activities0.25730.02290.53210.3854
Q.14 Work/school life0.06790.04770.59310.6613
Q.15 Joint surgery or procedure0.04890.0222−0.00310.8356
Q.16 Comorbid diseases−0.0022−0.08320.06420.7874