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Table 3 Baseline correlations of the Sleep Quality Scale with pain and the MOS Sleep Scale

From: Psychometric properties of a single-item scale to assess sleep quality among individuals with fibromyalgia

 

Pearson Correlation (r) with Sleep Quality Scale (-)

 

Study 1056

Study 1077

 

r

p-value

r

p-value

Average Daily Diary Pain Numeric Rating Scale (-)

0.64

<0.001

0.58

<0.001

MOS Sleep Scales

    

    Sleep Disturbance (-)

0.45

<0.001

0.42

<0.001

    Snoring (-)

0.01

0.884

0.00

0.993

    Awaken Short of Breath or with Headache (-)

0.21

<0.001

0.14

<0.001

    Quantity of Sleep (+)

-0.31

<0.001

-0.34

<0.001

    Sleep Adequacy (+)

-0.21

<0.001

-0.32

<0.001

    Somnolence (-)

0.11

0.004

0.15

<0.001

  1. (-) Higher scale scores indicate poorer outcome. (+) Higher scale scores indicate better outcome.