Table 3.

Ordinary least squares regression model parameter estimates: persons with chronic neck pain

	Rating scale (n = 91)		Standard gamble (n = 89)
	β	95% CI	β	95% CI
Crude model	F = 31.69	P < 0.0001	F = 1.94	P = 0.167
Adjusted R 2	0.254		0.011
Intercept (α)	92.37	81.79, 103.09	82.01	65.69, 98.35
Neck Disability Index
0–100	−0.89	−1.21, −0.63	−0.43	−0.89, 0.23
Adjusted model	F = 6.01	P < 0.0001	F = 1.46	P = 0.186
Adjusted R 2	0.308		0.040
Intercept (α)	88.75	64.49, 112.99	97.46	60.37, 134.55
Neck Disability Index
0–100	−0.64	−1.07, −0.22	−0.006	−0.68, 0.67
Neck pain duration
0–1 Weeks (referent)	− (−)		− (−)
2–4 Weeks	16.94	1.57, 32.33	3.17	−20.45, 26.78
5–12 Weeks	18.17	1.42, 34.91	−5.18	−30.76, 20.39
> 12 Weeks	13.08	−2.39, 28.55	13.73	−9.98, 37.44
CES-depression scale
0–60	−0.88	−1.49, −0.26	−1.10	−2.04, −0.16
Co-morbidity scale
0–56	0.42	−0.72, 1.55	0.69	−1.04, 2.42
Age
18–65 Years	−0.18	−0.62, 0.27	−0.45	−1.13, 0.23
Gender
Female 0, male 1	−6.59	−18.77, 5.59	−8.40	−27.05, 10.26

Note: β coefficients have been multiplied by 100 in this Table to facilitate their interpretation

CI confidence interval