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Table 2 Reliability coefficients of 14 clinical examinations (n = 16)

From: A diagnostic tool for people with lumbar instability: a criterion-related validity study

Clinical tests

Percent agreement

Kappa (95%CI)

Interpretation

1. Total trunk extension > 26°

100

1.00 (1.00 to 1.00)

Excellent

2. Lumbar flexion > 53°

100

1.00 (1.00 to 1.00)

Excellent

3. Average SLR > 91°

100

1.00 (1.00 to 1.00)

Excellent

4. Beighton’s scale

100

1.00 (1.00 to 1.00)

Excellent

5. PPIVMs (flexion)

75.00

0.50 (0.02 to 0.98)

Moderate

6. PPIVMs (extension)

91.67

0.83 (0.53 to 1.00)

Excellent

7. PAIVMs

88.33

0.67 (0.25 to 1.00)

Good

8. Passive lumbar extension

88.33

0.56 (0.01 to 1.00)

Moderate

9. Painful catch sign

91.67

0.63 (−0.03 to 1.00)

Good

10. Posterior shear test

91.67

0.63 (−0.03 to 1.00)

Good

11. Prone instability test

91.67

0.82 (0.50 to 1.00)

Excellent

12. Aberrant motion test

83.33

0.56 (0.01 to 1.00)

Moderate

13. Interspinous gap change

83.33

0.63 (0.16 to 1.00)

Good

14. Sit to stand

100

1.00 (1.00 to 1.00)

Excellent

  1. Abbreviations: PPIVMs Passive Physiological Intervertebral Movements, PAIVMs Passive Accessory Intervertebral Movements, CI Confidence interval, SLR Straight leg raise