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Table 4 Convergent 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

Questionnaires

SBST-TH total score

SBST-TH psychological subscore

Spearman rank correlation

(95% confidence interval)

p-value

Spearman rank correlation

(95% confidence interval)

p-value

VAS pain intensity

0.45 (0.30, 0.57)

<  0.001*

0.39 (0.26, 0.50)

<  0.001*

RMDQ

0.56 (0.43, 0.69)

<  0.001*

0.49 (0.36, 0.60)

<  0.001*

FABQ total

0.42 (0.29, 0.53)

<  0.001*

0.33 (0.21, 0.43)

<  0.001*

FABQ-PA

0.35 (0.23, 0.45)

<  0.001*

0.32 (0.20, 0.44)

<  0.001*

FABQ-W

0.38 (0.26, 0.51)

<  0.001*

0.29 (0.15, 0.41)

<  0.001*

PCS total

0.41 (0.31, 0.55)

<  0.001*

0.39 (0.26, 0.51)

<  0.001*

PSC rumination

0.37 (0.24, 0.48)

<  0.001*

0.35 (0.21, 0.48)

<  0.001*

PSC helplessness

0.37 (0.23, 0.50)

<  0.001*

0.34 (0.21, 0.47)

<  0.001*

PSC Magnification

0.38 (0.25, 0.50)

<  0.001*

0.35 (0.21, 0.48)

<  0.001*

HADS total

0.38 (0.25, 0.50)

<  0.001*

0.35 (0.22, 0.45)

<  0.001*

HADS anxiety

0.34 (0.22, 0.45)

<  0.001*

0.32 (0.19, 0.44)

<  0.001*

HADS depression

0.32 (0.18, 0.44)

<  0.001*

0.30 (0.15, 0.43)

<  0.001*

EQ-5D-5L

−0.52 (−0.61, −0.40)

<  0.001*

−0.49 (−0.60, −0.38)

<  0.001*

EQ-5D VAS

− 0.41 (− 0.51, − 0.30)

<  0.001*

−0.42 (− 0.54, − 0.29)

<  0.001*

  1. SBST-TH STarT back screening tool-Thai version, VAS Visual analogue scale, RMDQ Roland-Morris disability questionnaire, FABQ Fear-avoidance beliefs questionnaire, FABQ-PA Fear-avoidance beliefs questionnaire about physical activity, FABQ-W Fear-avoidance beliefs questionnaire about work, PCS Pain catastrophising scale, HADS Hospital anxiety and depression scale, EQ-5D-5L EuroQol five-dimensional five-level questionnaire, EQ-VAS EuroQol-visual analogue scale
  2. * p < 0.05