Table 4.
The estimated group differences between intervention and control groups after intention-to-treat analysis at 6 months and 12 months after baseline.
| Scales | 6 months after baseline | 12 months after baseline | ||||||
| T0-T1 change | 95% CI | P valuea | Cohen d | T0-T2 change | 95% CI | P valuea | Cohen d | |
| PAMb (10-65) | –0.7 | –3.4 to 1.5 | .44 | 0.0 | –0.1 | –1.6 to 1.5 | .93 | 0.00 |
| SMAS-Sc (0-60) | 0.3 | –1.4 to 2.0 | .72 | 0.0 | 0.7 | –1.1 to 2.5 | .43 | 0.03 |
| RASEd (28-140) | –2.1 | –4.9 to 0.8 | .16 | 0.0 | 0.3 | –2.2 to 2.9 | .81 | 0.00 |
| PEPPI-5e (5-25) | 0.4 | –0.5 to 1.2 | .40 | 0.0 | 0.3 | –0.7 to 1.3 | .51 | 0.03 |
| RANDf physical functioning (0-100) | 2.5 | –3.3 to 8.1 | .40 | 0.00 | –0.2 | –5.4 to 5.1 | .96 | 0.00 |
| RAND social functioning (0-100) | 4.1 | –1.5 to 9.6 | .15 | 0.0 | –2.7 | –9.2 to 3.8 | .42 | –0.01 |
| RAND physical role limitations (0-100) | 5.6 | –7.0 to 18.2 | .38 | 0.00 | –2.8 | –14.9 to 9.3 | .65 | 0.00 |
| RAND emotional role limitations (0-100) | –3.2 | –14.1 to 7.6 | .56 | 0.00 | –3.9 | –16.0 to 8.3 | .53 | 0.00 |
| RAND mental health (0-100) | 2.8 | –1.1 to 6.8 | .16 | 0.0 | 0.9 | –3.0 to 4.7 | .66 | 0.00 |
| RAND vitality (0-100) | 3.4 | –1.5 to 8.3 | .17 | 0.0 | 5.4 | 0.2 to 10.7 | .04g | 0.01 |
| RAND pain (0-100) | 2.6 | –3.7 to 8.9 | .42 | 0.0 | –6.1 | –12.5 to 0.4 | .06 | –0.01 |
| RAND general health perception (0-100) | 2.2 | –2.2 to 6.7 | .33 | 0.0 | –0.1 | –4.5 to 4.4 | .98 | 0.00 |
| RAND health change (0-100) | 0.1 | –6.8 to 7.1 | .97 | 0.00 | –1.4 | –9.0 to 6.2 | .72 | 0.00 |
| NRSh pain today (0-10) | 0.0 | –0.6 to 0.7 | .97 | 0.00 | 0.5 | –0.1 to 1.2 | .13 | 0.10 |
| NRS mean pain last 2 weeks (0-10) | 0.0 | –0.7 to 0.6 | .97 | 0.00 | 0.7 | 0.0 to 1.4 | .60 | 1.13 |
| NRS fatigue today (0-10) | 0.2 | –0.5 to 0.8 | .66 | 0.0 | 0.3 | –0.4 to 0.9 | .46 | 0.01 |
| NRS mean fatigue last 2 weeks (0-10) | –0.23 | –0.9 to 0.4 | .45 | –0.1 | 0.1 | –0.6 to 0.7 | .81 | 0.00 |
| MPCI-Fi (4-32) | 0.1 | –0.8 to 0.9 | .90 | 0.00 | 0.3 | –0.7 to 1.2 | .58 | 0.01 |
aValues represent outcomes of the ITT analysis without confounders. After adding confounders, no changes in values appear.
bPAM: Patient Activation Measurement.
cSMAS-S: short Self-Management Ability Scale.
dRASE: Rheumatoid Arthritis Self-Efficacy.
ePEPPI-5: Perceived Efficacy in Patient-Physician Interaction.
fRAND-36: General Health Status.
gSignificant differences (P<.05) between control and intervention groups.
hNRS: numerical rating scale.
iMPCI-F: Modified Pain Coping Inventory for Fatigue.