Predictors of outcome in neck pain patients undergoing chiropractic care: comparison of acute and chronic patients

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Published online 2012 Aug 24. doi: 10.1186/2045-709X-20-27

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Table 7

Multivariate logistic regression analysis of prognostic predictors at baseline, at 1 week and at 1 month for improvement at 3 months

	Coefficient	OR	95% CI	p-value	Sensitivity; Specificity; Percentage correctly predicted; Area under ROC (95% CI); Adjusted R²
Acute N = 146
Baseline to 1 Month BQN total Change Score	0.66	1.07	1.03 to 1.11	0.001	97.6%; 35.0%; 89%; 0.82 (0.72 to 0.92); 28.8%
PGIC @ 1 Week	1.21	3.35	1.13 to 9.92	0.029
ChronicN = 133
PGIC @ 1 Month	1.80	6.04	2.76 to 13.69	0.001	77.9%; 63.2%; 73.7%; 0.71 (0.62 to 0.79); 19.9%

BQ = Bournemouth Questionnaire. PGIC = Patient global impression of change. N = number of observations.