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Table 5 Spearman correlations between change from baseline in FACIT-Fatigue and various measures (Week 52)

From: Psychometric properties of FACIT-Fatigue in systemic lupus erythematosus: a pooled analysis of three phase 3 randomised, double-blind, parallel-group controlled studies (BLISS-SC, BLISS-52, BLISS-76)

PRO scale BLISS-SC
(n = 654–662)
BLISS-52
(n = 665–688)
BLISS-76
(n = 606–613)
Pooled
(N = 1271–1958)
SF-36v2
 Physical component score N/A 0.48 0.48 0.48
 Mental component score N/A 0.54 0.54 0.53
 Physical functioning N/A 0.42 0.45 0.43
 Role physical N/A 0.46 0.54 0.50
 Bodily pain N/A 0.49 0.50 0.50
 General health N/A 0.46 0.45 0.45
 Vitality N/A 0.63 0.70 0.67
 Social functioning N/A 0.46 0.54 0.50
 Role emotional N/A 0.43 0.43 0.42
 Mental health N/A 0.48 0.48 0.48
SELENA-SLEDAI −0.12 −0.10 −0.08 −0.10
PGA −0.12 −0.17 −0.31 −0.20
  1. Spearman correlations were assessed as weak (r < 3.0), moderate (r ≥ 0.3 and < 0.5) or strong (r ≥ 0.5)
  2. FACIT Functional Assessment of Chronic Illness Therapy, N/A Not assessed, PGA Physician’s Global Assessment, PRO Patient-reported outcomes, SELENA-SLEDAI Safety of Estrogens in Lupus Erythematosus National Assessment-Systemic Lupus Erythematosus Disease Activity Index, SF-36v2 Short Form-36 Health Survey Version 2