Table 3.

Association of PGIC with Duration of Follow-Up^*

			95% CI
Variable	Covariate	B^†	Lower Bound	Upper Bound	P-Value
Pain	Δ Pain	<0.49	<0.62	<0.35	<0.001
	BL Pain	<0.36	<0.52	<0.21	<0.001
	F/U Months	<0.02	<0.04	0.00	0.103
	Education Level
	≤ High School vs. University	<0.52	<1.25	0.21	0.162
	College vs. University	<0.84	<1.61	<0.08	0.031
PGA	Δ PGA	<0.56	<0.71	<0.42	<0.001
	BL PGA	<0.55	<0.73	<0.38	<0.001
	F/U Months	<0.01	<0.03	0.01	0.191
	Education Level
	≤ High School vs. University	<0.27	<1.02	0.49	0.489
	College vs. University	<0.66	<1.44	0.11	0.094
Body Map	Δ Body Map	<0.07	<0.10	<0.04	<0.001
	BL Body Map	<0.04	<0.08	<0.01	0.012
	F/U Months	<0.02	<0.04	0.00	0.052
	Education Level
	≤ High School vs. University	<0.68	<1.38	0.03	0.060
	College vs. University	<0.67	<1.43	0.10	0.086
FIQ	Δ FIQ	<0.06	<0.08	<0.04	<0.001
	BL FIQ	<0.04	<0.06	<0.02	<0.001
	F/U Months	<0.01	<0.03	0.01	0.524
	Education Level
	≤ High School vs. University	<0.49	<1.22	0.25	0.196
	College vs. University	<0.56	<1.32	0.21	0.156
HAQ	Δ HAQ	<2.07	<2.73	<1.40	<0.001
	BL HAQ	<0.87	<1.36	<0.38	<0.001
	F/U Months	<0.02	<0.04	0.00	0.111
	Education Level
	≤ High School vs. University	<0.32	<1.04	0.41	0.394
	College vs. University	<0.21	<0.97	0.54	0.580
MPQ	Δ MPQ	<0.04	<0.06	<0.02	<0.001
	BL MPQ	<0.03	<0.05	<0.01	0.001
	F/U Months	<0.02	<0.04	0.00	0.108
	Education Level
	≤ High School vs. University	<0.48	<1.19	0.24	0.190
	College vs. University	<0.48	<1.22	0.26	0.207

*Baseline age, gender and pain duration were not significantly associated with PGIC and were, therefore, not included in the model.
†Δ PGIC per unit of increase in each covariate.
BL, Baseline; F/U, follow-up; FIQ, Fibromyalgia Impact Questionnaire; HAQ, Health Assessment Questionnaire; MPQ, McGill Pain Questionnaire; PGA, Patient Global Assessment; PGIC, Patient Global Impression of Change.