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Table 6 One-week test-retest reliability of the B-FIQ in FM patients (n = 40)

From: Cross-cultural adaptation and validation of a Bengali version of the modified fibromyalgia impact questionnaire

FIQ item B-FIQ score Spearman’s r
Time 1 Time 2
Physical function 4.8 ± 2.5 5.2 ± 2.1 0.860
Days felt good 5.1 ± 2.1 4.8 ± 2.2 0.773
Workdays missed 2.0 ± 0.4 1.7 ± 0.4 0.862
Ability to do job 6.7 ± 2.3 7.2 ± 2.1 0.809
Pain 7.0 ± 2.3 6.9 ± 2.4 0.773
Morning tiredness 7.8 ± 2.7 7.3 ± 2.6 0.643
Fatigue 6.8 ± 2.9 6.5 ± 2.9 0.887
Stiffness 4.6 ± 3.5 5.1 ± 3.4 0.793
Anxiety 7.4 ± 2.7 9.6 ± 2.4 0.265
Depression 6.7 ± 3.0 7.1 ± 2.9 0.733
Total 61.9 ± 15.7 62.9 ± 16.0 0.899