Table 3.

Association of PGIC with Duration of Follow-Up*

95% CI
VariableCovariateBLower BoundUpper BoundP-Value
PainΔ Pain<0.49<0.62<0.35<0.001
BL Pain<0.36<0.52<0.21<0.001
F/U Months<0.02<0.040.000.103
Education Level
High School vs. University<0.52<1.250.210.162
College vs. University<0.84<1.61<0.080.031
PGAΔ PGA<0.56<0.71<0.42<0.001
BL PGA<0.55<0.73<0.38<0.001
F/U Months<0.01<0.030.010.191
Education Level
High School vs. University<0.27<1.020.490.489
College vs. University<0.66<1.440.110.094
Body MapΔ Body Map<0.07<0.10<0.04<0.001
BL Body Map<0.04<0.08<0.010.012
F/U Months<0.02<0.040.000.052
Education Level
High School vs. University<0.68<1.380.030.060
College vs. University<0.67<1.430.100.086
FIQΔ FIQ<0.06<0.08<0.04<0.001
BL FIQ<0.04<0.06<0.02<0.001
F/U Months<0.01<0.030.010.524
Education Level
High School vs. University<0.49<1.220.250.196
College vs. University<0.56<1.320.210.156
HAQΔ HAQ<2.07<2.73<1.40<0.001
BL HAQ<0.87<1.36<0.38<0.001
F/U Months<0.02<0.040.000.111
Education Level
High School vs. University<0.32<1.040.410.394
College vs. University<0.21<0.970.540.580
MPQΔ MPQ<0.04<0.06<0.02<0.001
BL MPQ<0.03<0.05<0.010.001
F/U Months<0.02<0.040.000.108
Education Level
High School vs. University<0.48<1.190.240.190
College vs. University<0.48<1.220.260.207
  • *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.