Journal of Rheumatic Diseases

Table. 3.

Correlation between the sleep quality indices and disease activity indices of ankylosing spondylitis

Parameters PSQI ISI ESS
BASDAI 0.469** 0.523** 0.525**
ASDAS-ESR 0.290** 0.347** 0.366**
ASDAS-CRP 0.373** 0.429** 0.405**

ASDAS: ankylosing spondylitis disease activity score, BASDAI: bath ankylosing spondylitis disease activity index, CRP: C-reactive protein, ESR: erythrocyte sedimentation rate, ESS: Epworth Sleepiness Scale, ISI: insomnia severity index, PSQI: Pittsburgh Sleep Quality Index. **p<0.01.

J Rheum Dis 2021;28:143~149 https://doi.org/10.4078/jrd.2021.28.3.143
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