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Table 4 Omega statistics for the MSQOL-54 total and subscales scores

From: Viability of a MSQOL-54 general health-related quality of life score using bifactor model

Subscale

No. of items

ω

ωS

Physical function

10

0.96

0.55

Role limitations due to physical problems

4

0.89

0.46

Role limitations due to emotional problems

3

0.86

0.53

Bodily pain

3

0.92

0.52

Emotional wellbeing

5

0.85

0.41

Energy

5

0.86

0.22

Health perceptions

5

0.82

0.35

Cognitive function

4

0.91

0.57

Health distress

4

0.93

0.35

Sexual function

4

0.87

0.70

  1. ω = scores reliability considering all sources of common variance (the general and the group factor); ωS (omega hierarchical subscale) = scores reliability considering only the common variance due to the group factor, that is the reliability of subscales scores, controlling for the effects of the general factor