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Table 5 Discriminant validity of the B-FIQ in FM patients, healthy controls, and RA patients

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

FIQ questions Group P* Group P*
FM patients Healthy controls FM patients RA patients
(n = 102) (n = 50) (n = 102) (n = 50)
Physical function 4.96 ± 2.47 0.92 ± 0.90 <0.001 4.96 ± 2.47 3.30 ± 0.43 <0.001
Days felt good 5.03 ± 2.09 0.20 ± 0.63 <0.001 5.03 ± 2.09 2.54 ± 0.41 <0.001
Workdays missed 1.72 ± 0.24 0.0 ± 0.0 <0.001 1.72 ± 0.24 1.32 ± 0.35 0.150
Ability to do job 7.26 ± 2.49 0.28 ± 0.11 <0.001 7.26 ± 2.49 3.98 ± 0.47 <0.001
Pain 7.55 ± 2.27 0.95 ± 0.16 <0.001 7.55 ± 2.27 3.51 ± 0.42 <0.001
Morning tiredness 8.02 ± 2.69 1.70 ± 0.26 <0.001 8.02 ± 2.69 4.64 ± 0.48 <0.001
Fatigue 6.89 ± 2.98 0.43 ± 0.17 <0.001 6.89 ± 2.98 3.54 ± 0.48 <0.001
Stiffness 5.22 ± 3.30 0.30 ± 0.13 <0.001 5.22 ± 3.30 3.53 ± 0.46 0.005
Anxiety 7.72 ± 2.75 2.39 ± 0.33 <0.001 7.72 ± 2.75 5.07 ± 0.50 <0.001
Depression 7.21 ± 2.80 2.46 ± 0.29 <0.001 7.21 ± 2.80 4.40 ± 0.45 <0.001
Total 64.75 ± 16.47 9.67 ± 6.69 <0.001 64.75 ± 16.47 37.56 ± 3.66 <0.001
  1. * Mann–Whitney U test.