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Table 3 Construct validity of Fibromyalgia Survey Questionnaire (Brazil): telephone interview and self-administration

From: Validity of fibromyalgia survey questionnaire (2016) assessed by telephone interview and cross-cultural adaptation to Brazilian Portuguese language

  ACR 1990
Fibromyalgia diagnosis   Tender points count
  Kappa Spearman
FSQ-BR phone Se 77.8% [57.7–91.3] 0.65 ± 0.09 WPI 0.76 ± 0.05
Sp 88.3% [77.4–95.1]   FSS 0.77 ± 0.05
FSQ-BR self Se 66.7% [46.0–83.5] 0.62 ± 0.09 WPI 0.68 ± 0.06
Sp 88.3% [77.4–95.2]   FSS 0.72 ± 0.05
  1. FSQ Fibromyalgia Survey Questionnaire, Br Brazil, WPI widespread pain index, SSS symptom severity scal, FSS fibromyalgia severity scale, Se sensitivity, Sp Specificity
  2. Results are shown with ± standard errors or [95% confidence interval]