Psychometric evaluation of the WHODAS 2.0 and prevalence of disability in a Swedish general population

Journal of Patient-Reported Outcomes

Table 3 Pearson’s correlations between the WHODAS 2.0 domain scores and the RAND-36 scale scores

RAND-36	Cognition	Mobility	Self-care	WHODAS 2.0
RAND-36	Cognition	Mobility	Self-care	Getting along	Life activities: Household	Life activities: Work/study	Participation
Physical functioning	− 0.40 L	− 0.77 H	− 0.51 M	− 0.42 L	− 0.57 M	− 0.51 M	− 0.58 M
Role-functioning/physical	− 0.42 L	− 0.61 M	− 0.42 M	− 0.41 L	− 0.56 M	− 0.60 M	− 0.65 M
Pain	− 0.39 L	− 0.58 M	− 0.41 M	− 0.37 L	− 0.50 M	− 0.51 M	− 0.61 M
General health	− 0.48 M	− 0.56 M	− 0.41 M	− 0.48 M	− 0.54 M	− 0.54 M	− 0.67 M
Energy/fatigue	− 0.49 M	− 0.44 M	− 0.35 M	− 0.46 M	− 0.54 M	− 0.54 M	− 0.63 M
Social functioning	− 0.56 M	− 0.55 L	− 0.48 L	− 0.56 M	− 0.63 M	− 0.65 M	− 0.76 H
Role-functioning /emotional	− 0.49 M	− 0.38 L	− 0.35 M	− 0.47 M	− 0.50 M	− 0.53 M	− 0.59 M
Emotional well-being	− 0.54 M	− 0.36 L	− 0.36 L	− 0.54 M	− 0.49 M	− 0.54 M	− 0.63 M

The correlations marked in bold are consistent with the predefined hypotheses regarding low (L) r < − 0.3; medium (M) − 0.3 < r < − 0.6; or high (H) r > − 0.6 correlations. All the correlations were significant (p < 0.001)
RAND-36 = equal to the Medical Outcomes Study 36‐item Short‐Form health survey (SF-36). The predefined hypotheses are based on the expectation that some WHODAS 2.0 domains and RAND-36 subscales are expected to have low, medium or high correlations