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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: Int J Psychophysiol. 2021 Jun 15;167:1–6. doi: 10.1016/j.ijpsycho.2021.06.004

Table 2.

Non-Parametric Correlations

1 2 3 4 5 6 7 8 9
1 BPI Severity 1 .66** .50** .29* .17 −.24 .38** −.16 −.14
2 BPI Interference .66** 1 .53** .28* .25* −.15 .42** .11 −.09
3 PCS .50** .53** 1 .50** .43** −.17 .44** .02 −.04
4 Anxiety (PROMIS) .30* .28* .50** 1 .64** −.26* .38** −.12 −.26
5 Depression (PROMIS) .17 .25* .43** .64** 1 −.12 .36** −.02 .02
6 Pain Threshold −.24* −.15 −.17 −.26* −.12 1 −.09 .33* .30*
7 Sleep Quality .38** .42** .44** .38** .36** −.09 1 .01 −.05
8 CAR −.16 .11 .02 −.12 −.02 .33* .01 1 .52**
9 AUCG −.14 −.09 −.04 −.26 .02 .30* −.05 .52** 1
*.

Correlation is significant at the 0.05 level (two-tailed)

**.

Correlation is significant at the 0.01 level (two-tailed)

BPI: Brief Pain Inventory; PCS: Pain Catastrophizing; PROMIS: Patient-Reported Outcomes Measurement Information System (T-Score); PSQI6: Pittsburgh Sleep Quality Index; CAR: Cortisol Awakening Response; AUCG: Area under the curve with respect to ground, Total post-awakening cortisol levels