TABLE 4 -.

Beta regression for pain intensity within the last week

Parameter	Regression (B) coefficient (95% CI)	OR
Intercept	−0.18 (−6.43 to 6.07)	0.84
Age	0.02 (0.003 to 0.04) *	1.02
Weight	0.02 (0.001 to 0.05) *	1.02
Height	−0.02 (−0.06 to 0.02)	0.98
Sex (male = 1)	0.40 (−0.24 to 1.05)	1.50
Neck flexion	0.02 (−0.004 to 0.04)	1.02
Neck extension	0.01 (−0.01 to 0.02)	1.01
Neck protraction	0.001 (−0.13 to 0.13)	1.00
Neck retraction	0.10 (−0.10 to 0.29)	1.10
Neck lateral flexion (affected side)	0.04 (0.01 to 0.07) *	1.04
Neck lateral flexion (unaffected side)	−0.02 (−0.05 to 0.01)	0.97
Neck rotation (affected side)	−0.03 (−0.05 to -0.001) *	0.98
Neck rotation (unaffected side)	0.01 (−0.02 to 0.03)	1.01
Standardized weighted residuals 2:   Min     1Q       Median    3Q     Max -2.33    -0.82      -0.12      0.77    2.13 Phi coefficient (precision model with identity link):            Estimate     Std. Error     z value       95% CI (phi)      9.95              1.90           5.23       6.22 to 13.68 Type of estimator: maximum likelihood Log-likelihood: 25.39 on 14 degrees of freedom Pseudo R-squared: 0.33

Abbreviations: CI, confidence interval; 1Q, first quartile; 3Q, third quartile. OR refers to the odds ratio for the outcome measure per unit change in the predictor variable. * p < 0.05