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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: Pain. 2015 Mar;156(3):540–546. doi: 10.1097/01.j.pain.0000460324.18138.0a

Table 2.

Within-person correlations among study variables

Variable 1 2 3 4 5
1. Sleep Quality (Predictor)
2. Pain (1st Mediator) −.111**
3. Positive Affect (2nd Mediator)   .202** −.326**
4. Negative Affect (3rd Mediator) −.128**   .239** −.397**
5. Activity Interference (Outcome) −.097** .184** −.247** .096**

Note. N = 4317;

**

p < .01; Estimated via Maximum Likelihood in a Two-Level Random Coefficient Model in Mplus.