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Table 3 Individual SIQR questions for RA, SLE and FM with the calculated differences between RA and SLE and between FM and the combined RA/SLE groups

From: Distinguishing fibromyalgia from rheumatoid arthritis and systemic lupus in clinical questionnaires: an analysis of the revised Fibromyalgia Impact Questionnaire (FIQR) and its variant, the Symptom Impact Questionnaire (SIQR), along with pain locations

SIQR question Healthy (n= 204) FM (n= 202) RA (n= 31) SLE (n= 20) RA minus SLE RA/SLE (n= 51) FM minus RA/SLE
Brush or comb hair 0.1 2.4 0.9 0.8 0.1 0.8 1.6
Walk continuously for 20 minutes 0.6 5.7 3.4 2.2 1.2 2.9 2.8
Prepare a homemade meal 0.2 4.3 1.2 1.4 -0.2 1.3 3.0
Vacuum, scrub or sweep floors 0.6 6.5 2.8 2.5 0.3 2.7 3.8
Lift and carry a bag full of groceries 0.4 5.6 2.6 3.3 -0.7 2.9 2.7
Climb one flight of stairs 0.5 5.6 3.6 2.3 1.3 3.1 2.5
Change bed sheets 0.4 5.5 2.4 2.2 0.2 2.3 3.2
Sit in a chair for 45 minutes 0.7 5.6 1.5 1.6 -0.1 1.5 4.1
Go shopping for groceries 0.4 5.6 2.5 2.4 0.1 2.4 3.2
Function (average) 0.4 5.2 2.3 2.1 0.2 2.2 3.0
Achieve goals 0.7 5.7 2.7 3.1 -0.4 2.8 2.9
Feel overwhelmed 0.7 5.2 2.5 3.3 -0.8 2.8 2.4
Overall (average) 0.7 5.5 2.6 3.2 -0.6 2.8 2.7
Pain 1.5 6.0 3.9 4.1 -0.2 3.9 2.1
Energy 2.6 6.8 5.1 5.1 0.0 5.1 1.7
Stiffness 2.1 6.7 4.5 4.1 0.4 4.4 2.3
Sleep 3.8 7.6 5.4 5.5 -0.1 5.5 2.1
Depression 1.7 4.6 1.8 1.8 0.0 1.8 2.8
Memory 1.7 5.9 2.7 3.4 -0.7 3.0 2.9
Anxiety 1.8 4.5 1.9 2.6 -0.7 2.2 2.3
Tenderness 1.0 6.9 3.4 2.5 0.9 3.0 3.9
Balance 0.7 4.8 2.0 1.8 0.2 1.9 2.9
Sensitivity 1.5 6.2 1.6 4.5 -2.9 2.8 3.4
Symptoms (average) 1.8 6.0 3.2 3.5 -0.3 3.3 2.7
Total SIQR score 12.4 56.6 27.9 29.6 -1.7 28.6 28.0
  1. Note: Minus scores in the RA minus SLE column indicate that SLE group had higher scores on that item. Higher scores indicate more impairment or higher level of symptoms. FM, fibromyalgia; RA, rheumatoid arthritis; SLE, systemic lupus erythematosus.