Table 6.

Multivariate analysis of predictive factors of disability based on the quality of life scores

	OR	95% CI	p value
Average physical score ≤ 47.3	1.7	0.26–11.13	0.5799
Energy NHP > 61.02	5.9	0.85–40.9	0.0733
Pain NHP > 29.54	0.43	0.05–3.73	0.4419
Physical functioning SF36 ≤ 85	16.5	1.43–191.32	0.0247*

NHP: Nottingham Health Program, SF36: Short Form-36, 95% Confidence Interval, *p < 0.05

AUC of the statistical model = 0.87 which allows classification of 81.5% of the patients in the correct category