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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: Ann Behav Med. 2017 Jun;51(3):365–375. doi: 10.1007/s12160-016-9860-2

Figure 1.

Figure 1

Link between Sleep Quality and Subsequent Pain Intensity is Moderated by Time of Day. Sleep quality refers to within-subject changes in sleep quality. Poor sleep (solid line) is identified as one Standard Deviation below the average person centered mean. Good sleep (dashed line) is identified +1 SD refers to one Standard Deviation above the average person centered mean. Good sleep (dashed line) is associated lower pain intensity in the morning hours, but this pain intensity increases over the course of the day.