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Table 4 Multivariable regression of changes in NASS pain+disability scores between baseline and programme discharge (n = 112)

From: Prognostic factors for the improvement of pain and disability following multidisciplinary rehabilitation in patients with chronic neck pain

Covariate Change R2 Change F-value Regression coefficient 95% CI p-value Bivariate correlation Partial correlation
Constant    −1.890 (−2.974 to 0.805) 0.001   
NASS pain+disability baseline 0.151 2.209 0.281 (0.159 to 0.403) < 0.001 0.376 0.414
Age 0.038 0.312 0.009 (0.001 to 0.017) 0.024 0.077 0.223
Active ROM,* baseline 0.034 0.228 0.002 (0.000 to 0.005) 0.033 0.004 0.210
SF-36 mental health, change 0.029 0.140 0.007 (0.000 to 0.013) 0.047 0.219 0.197
Active ROM,* change 0.029 0.132 0.003 (0.000 to 0.006) 0.048 0.052 0.195
SF-36 mental health, baseline 0.024 0.030 0.005 (0.000 to 0.010) 0.072 −0.085 0.178
Education 0.018 −0.093 −0.050 (−0.113 to 0.013) 0.121 −0.158 − 0.154
Sex (0 = female; 1 = male) 0.006 −0.336 − 0.079 (− 0.250 to 0.093) 0.365 − 0.017 − 0.090
Marital Status (1 = alone; 2 = with partner) 0.003 − 0.406 0.053 (−0.122 to 0.228) 0.546 0.087 0.060
Co-morbidities 0.002 −0.410 0.018 (−0,043 to 0.079) 0.560 0.172 0.058
Model total 0.273 3.784    0.000   
  1. * Active ROM: sum of the ranges-of-motion of cervical lateral flexion (both sides), cervical rotation (both sides), neck flexion, and neck extension. Positive regression coefficients for change scores represent positive associations. NASS: North American Spine Society questionnaire; SF-36: Short Form 36 questionnaire
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