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Table 2 Associations (simple regression analysis) between fatigue (fVAS scores) and selected variables

From: Interleukin-1-related activity and hypocretin-1 in cerebrospinal fluid contribute to fatigue in primary Sjögren’s syndrome

Independent variables Estimate Std. error R 2 P
Depression (BDI) scores 1.42 0.42 0.20 0.001
Pain (SF-36) scores* 0.48 0.13 0.23 < 0.001
IL-1Ra 0.52 0.24 0.09 0.04
IL-1RII 0.13 0.16 0.01 0.41
IL-6 − 3.47 2.43 0.04 0.16
S100B 0.05 0.04 0.03 0.22
Hcrt1 − 0.04 0.14 0.002 0.76
  1. Abbreviations: BDI Beck Depression Inventory, SF-36 36-item short form survey instrument, IL-1Ra interleukin 1 receptor antagonist, IL-1RII interleukin 1 receptor type 2, IL-6 interleukin 6, S100B S100 calcium binding-protein B, Hcrt1 hypocretin 1
  2. *SF-36 pain scores are reported according to the transformed scale with high scores indicating high bodily pain and low scores indicating low bodily pain