Table 6 Multivariate regression analyses

ODI

-3.74 (-14.69, 7.21)

0.502

1863

1

0.10 (-5.69, 7.69)

0.769

1869

2

7.06 (-0.26, 23.38)

0.395

NRS leg pain

-0.59 (-2.13, 0.96)

0.455

913

1

0.21 (-0.70, 1.12)

0.649

916

2

-0.23 (-244, 1.98)

0.837

NRS back pain

0.80 (-0.84, 2.44)

0.339

950

1

0.63 (-0.34, 1.60)

0.199

952

2

0.75 (-1.61, 3.10)

0.533

ZCQ pain

-0.22 (-0.64, 0.20)

0.205

364

1

-0.01 (-0.26, 0.26)

0.996

371

2

0.24 (-0.39, 0.86)

0.454

ZCQ disability

-0.01 (-0.30, 0.03)

0.979

344

1

0.01 (-0.24, 0.25)

0.972

347

2

0.40 (-0.19, 0.99)

0.186