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Table 5 Discriminative validity

From: Translation, cross-cultural adaptation and psychometric validation of the Thai version of the STarT Back Screening Tool in patients with non-specific low back pain

Reference standards Case definition AUCs of SBST-TH total score
(95% confidence interval)
AUCs of SBST-TH psychological subscore (95% confidence interval)
Disability RMDQ ≥7 0.85 (0.72, 0.97) 0.75 (0.52, 0.92)
Fear-avoidance beliefs FABQ ≥43 0.72 (0.62, 0.81) 0.69 (0.60, 0.79)
Catastrophising PCS ≥ 20 0.70 (0.58, 0.81) 0.70 (0.58, 0.81)
Depression and anxiety HADS ≥8 0.67 (0.55, 0.78) 0.66 (0.55, 0.77)
  1. AUCs Area under the curves, SBST-TH STarT back screening tool-Thai version, RMDQ Roland-Morris disability questionnaire, FABQ Fear-avoidance beliefs questionnaire, PCS Pain catastrophising scale, HADS Hospital anxiety and depression scale