Table 4.
Results of multiple regression analyses of change in pain, interference of pain, depression and GPE
| |
NRS Pain |
MPI Interference of pain |
BDI II Depression |
Global perceived effect |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
N = 120 |
N=113 |
N = 116 |
N = 119 |
||||||||
| B (95% CI) | β | P | B (95% CI) | β | P | B (95% CI) | β | P | Odds (95% CI) | P | |
| Baseline value |
-.53 (−.67 to -.39) |
-.57 |
<0.001 |
-.55 (−.70 to -.39) |
-.68 |
<0.001 |
-.30 (−.44 to -.16) |
-.35 |
<0.001 |
|
|
| Anxiety (HADS) |
|
|
|
.043 (.00 to .08) |
.18 |
0.03 |
|
|
|
|
|
| Personal control (IPQ) |
|
|
|
-.05 (−.08 to-.02) |
-.25 |
0.004 |
-.53 (−.82 to -.23) |
-.30 |
<0.001 |
|
|
| Consequence (IPQ) |
|
|
|
.08 (.04 to .11) |
.40 |
<0.001 |
|
|
|
|
|
| Pain (NRS) |
|
|
|
|
|
|
|
|
|
.75 (.60 to .93) |
0.01 |
| Fatigue (FIQ) |
|
|
|
|
|
|
|
|
|
.72 (.53 to .96) |
0.03 |
| Gender |
1.54 (.22 to 2.86) |
.17 |
0.02 |
.74 (.11 to 1.38) |
.18 |
0.02 |
|
|
|
|
|
| Education |
|
|
|
|
|
|
|
|
|
|
|
| Primary vs secondary |
|
|
|
-.57 (−.93 to -.20) |
-.34 |
0.003 |
−4.09 (−7,57 to -.62) |
-.27 |
0.02 |
3.83 (1.14 to 12.86) |
0.03 |
| Primary vs high |
|
|
|
-.43 (−.82 to -.04) |
-.24 |
0.03 |
−3.93 (−7.71 to -.15) |
-.25 |
0.04 |
2.52 (.73 to 8.67) |
0.14 |
| R2 | 34.6% | 38.1% | 25.7% | ||||||||
B = unstandardized regression coefficient, 95% CI = 95% confidence interval of B, β = standardized regression coefficient, P = P value global perceived effect: 0 = no change/worse, 1 = improved, gender; 0 = male, 1= female. β negative: greater improvement in BDI- II, NRS pain and MPI interference. β positive: less improvement in BDI- II, NRS pain and MPI interference. Higher scores on the HADS, IPQ, NRS pain and FIQ, indicate more anxiety, higher beliefs in personal control, higher beliefs in consequence, more pain and fatigue.