Table 3: Correlation matrix. Correlation between pain intensity, mental flexibility, coping, anxiety, and depression.


Biological treatment

1. Pain intensity.93∗∗ (p<.001).95∗∗ (p<.001).04 (p=.777).07 (p=.584).17 (p=.199).29  (p=.028).41∗∗ (p=.001).27  (p=.043)
a. Daytime pain.92∗∗ (p<.001).77∗∗ (p<.001).05 (p=.698).12 (p=.389).13 (p=.323).25 (p=.063).35∗∗ (p=.008).28 (p=.036)
b. Night pain.96∗∗ (p<.001).76∗∗
.02 (p=.876).03 (p=.838).19 (p=.160).30  (p=.024).42∗∗ (p=.001).23 (p=.087)
2. Ego-Resiliency-.01 (p=.957).01
.24 (p=.070).23 (p=.081)-.08 (p=.555)-.24 (p=.075)-.39∗∗
3. Cognitive coping-.16
-.15 (p=.433).40 (p=.038).76∗∗ (p<.001).28 (p=.035)-.33 (p=.012)-.18 (p=.175)
4. Distraction coping-.01
-.02 (p=.914).59∗∗ (p=.001).55∗∗
.28 (p=.038)-.09 (p=.505)-.18 (p=.179)
5. Catastrophizing coping.34
.25 (p=.195).14
.18 (p=.372).25 (p=.205).25 (p=.062).26 (p=.048)
6. Anxiety.36
.23 (p=.235)-.18 (p=.354)-.11 (p=.592)-.04 (p=.840).37 (p=.054).39∗∗ (p=.003)
7. Depression.39
-.44  (p=.020)-.49∗∗  (p=.008)-.17 (p=.376)-.11 (p=.581).20 (p=.303)

Nonbiological treatment

< 0,05, ∗∗p< 0,01, correlation coefficients for patients in biological treatment are reported in upper right side of the table; on the contrary, correlation for patients in nonbiological treatment is showed in lower left side of the table.