Table 2.

Co-primary outcomes: changes from baseline and between group differences in neck and back disability

	Mean (95% CI)
Co-primary Outcomes	Short-term treatment (N=91)	Long-tern management (N=91)	Mean Difference (95% CI)	P Value
Neck Disability (NDI)a
Baseline	25.2 (23.7, 26.8)	26.6 (24.7, 28.6)	−1.4 (−3.9, 1.1)	0.26
Change from baseline to wk 4	−4.5 (−6.2, −2.7)	−2.9 (−4.7, −1.2)	−1.5 (−4.0, 0.9)	0.23
Change from baseline to wk 12	−7.8 (−9.6, −6.1)	−5.5 (−7.3, −3.8)	−2.3 (−4.8, 0.2)	0.07
Change from baseline to wk 24	−7.6 (−9.3, −5.8)	−5.7 (−7.4, −3.9)	−1.9 (−4.4, 0.6)	0.14
Change from baseline to wk 36	−7.3 (−9.1, −5.5)	−9.0 (−10.8, −7.2)	1.7 (−0.8, 4.2)	0.18
Change from baseline to wk 52	−7.2 (−9.0, −5.4)	−7.1 (−8.9, −5.3)	−0.1 (−2.6, 2.4)	0.95
Change from baseline to wk 78	−6.8 (−8.6, −5.0)	−8.6 (−10.4, −6.8)	1.8 (−0.8, 4.4)	0.17
Back Disability (ODI)b
Baseline	25.6 (23.9, 27.3)	26.7 (24.6, 28.9)	−1.2 (−3.9, 1.5)	0.39
Change from baseline to wk 4	−1.9 (−3.8, 0)	−2.0 (−3.9, −0.2)	0.1 (−2.5, 2.8)	0.92
Change from baseline to wk 12	−6.1 (−8.0, −4.2)	−4.6 (−6.5, −2.7)	−1.5 (−4.2, 1.1)	0.26
Change from baseline to wk 24	−5.5 (−7.4, −3.6)	−4.1 (−6.0, −2.3)	−1.4 (−4.0, 1.3)	0.32
Change from baseline to wk 36	−3.9 (−5.8, −2.0)	−6.3 (−8.2, −4.4)	2.4 (−0.3, 5.1)	0.08
Change from baseline to wk 52	−3.6 (−5.6, −1.7)	−4.4 (−6.3, −2.5)	0.8 (−1.9, 3.5)	0.56
Change from baseline to wk 78	−3.5 (−5.5, −1.5)	−5.8 (−7.7, −3.8)	2.3 (−0.5, 5.0)	0.11

^aNDI=Neck Disability Index. Higher scores indicate greater disability.

^bODI=Oswestry Disability Index. Higher scores indicate greater disability.