Table 3 Univariate analyses

1. Total trunk extension > 26°

0.54

0.18 to 1.60

0.26

2. Lumbar flexion > 53°

1.65

0.59 to 4.60

0.34

3. Average SLR > 91°

0.63

0.19 to 2.05

0.44

4. Beighton’s score > 2°

1.74

0.18 to 16.46

0.63

5. PPIVMs (flexion)

2.07

0.76 to 5.61

0.16*

6. PPIVMs (extension)

4.68

1.03 to 21.28

0.05*

7. PAIVMs

9.25

1.19 to 71.93

0.03*

8. Passive lumbar extension

1.90

0.70 to 5.16

0.21

9. Painful catch sign

3.22

0.70 to 5.16

0.13*

10. Posterior shear test

2.94

1.07 to 8.06

0.04*

11. Prone instability test

0.95

0.34 to 2.61

0.92

12. Aberrant motions test

1.04

0.32 to 3.42

0.95

13. Interspinous gap change

2.69

0.97 to 7.46

0.06*

14. Sit to stand

0.59

< 0.001 to 4.07

0.65