Table 3 Revised Fibromyalgia Impact Questionnaire total and dimensions scores construct validity (Pearson’s correlation coefficients and 95% CI)
From: Validation of a Spanish version of the Revised Fibromyalgia Impact Questionnaire (FIQR)
FIQR total | FIQR function | FIQR overall | FIQR symptoms | |
|---|---|---|---|---|
FIQ total | 0.83 (0.75 to 0.88) | 0.68 (0.56 to 0.77) | 0.47 (0.31 to 0.61) | 0.83 (0.76 to 0.88) |
HADS total | 0.69 (0.57 to 0.77) | 0.53 (0.38 to 0.66) | 0.45 (0.28 to 0.58) | 0.70 (0.59 to 0.79) |
HADS anxiety | 0.66 (0.54 to 0.75) | 0.50 (0.35 to 0.63) | 0.42 (0.25 to 0.56) | 0.68 (0.56 to 0.77) |
HADS depression | 0.62 (0.49 to 0.72) | 0.46 (0.30 to 0.60) | 0.39 (0.22 to 0.54) | 0.65 (0.53 to 0.75) |
BPI severity | 0.70 (0.57 to 0.78) | 0.51 (0.36 to 0.64) | 0.46 (0.31 to 0.61) | 0.68 (0.56 to 0.77) |
BPI interference | 0.84 (0.78 to 0.89) | 0.68 (0.57 to 0.77) | 0.49 (0.33 to 0.62) | 0.85 (0.79 to 0.89) |
SF-36: | ||||
Physical Component Summary (PCS) | −0.53 (−0.65 to −0.38) | −0.48 (−0.61 to −0.32) | −0.33 (−0.49 to −0.16) | −0.48 (−0.61 to −0.32) |
Mental Component Summary (MCS) | −0.65 (−0.75 to −0.53) | −0.47 (−0.60 to −0.31) | −0.41 (−0.55 to −0.24) | −0.68 (−0.77 to −0.56) |
Physical functioning (PF) | −0.68 (−0.77 to −0.57) | −0.64 (−0.74 to −0.52) | −0.35 (−0.50 to −0.17) | −0.64 (−0.74 to −0.52) |
Physical role functioning (PR) | −0.43 (−0.57 to −0.26) | −0.32 (−0.47 to −0.14) | −0.32 (−0.48 to −0.14) | −0.41 (−0.55 to −0.24) |
Bodily pain (BP) | −0.70 (−0.79 to −0.60) | −0.55 (−0.67 to −0.40) | −0.45 (−0.59 to −0.29) | −0.70 (−0.78 to −0.59) |
General health perceptions (GH) | −0.63 (−0.73 to −0.50) | −0.46 (−0.60 to −0.30) | −0.41 (−0.56 to −0.25) | −0.64 (−0.74 to −0.51) |
Vitality (VT) | −0.71 (−0.79 to −0.60) | −0.55 (−0.67 to −0.41) | −0.45 (−0.59 to −0.29) | −0.70 (−0.78 to −0.59) |
Social role functioning (SF) | −0.65 (−0.74 to −0.52) | −0.50 (−0.63 to −0.35) | −0.44 (−0.57 to −0.27) | −0.63 (−0.73 to −0.50) |
Emotional role functioning (RE) | −0.54 (−0.66 to −0.40) | −0.40 (−0.55 to −0.24) | −0.33 (−0.49 to −0.16) | −0.56 (−0.68 to −0.42) |
Mental health (MH) | −0.69 (−0.78 to −0.58) | −0.51 (−0.64 to −0.36) | −0.41 (−0.56 to −0.25) | −0.72 (−0.80 to −0.61) |