• Pain reports · May 2019

    Does bedtime matter among patients with chronic pain? A longitudinal comparison study.

    • R Kathryn McHugh, Robert R Edwards, Edgar L Ross, and Robert N Jamison.
    • Division of Alcohol and Drug Abuse, Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA.
    • Pain Rep. 2019 May 1; 4 (3): e747.

    IntroductionChronic pain patients frequently report having sleep disturbances and many tend to stay up during the night and then sleep into the day.ObjectivesThis study was designed to compare a heterogeneous group of persons with chronic pain who reported typically going to bed between the hours of 9 pm and midnight with those who go to bed at other hours of the day and night.MethodsTwo hundred seventy-nine participants were divided between those who reported going to bed between the hours of 9 pm and midnight (N = 205) and those who reported having atypical bedtimes (N = 74) based on pre-post questionnaire data and average pain assessments from a smartphone pain application (app).ResultsThose individuals in the atypical bedtime group reported waking up more frequently and getting fewer hours sleep (P < 0.05). These individuals also reported significantly higher pain scores, activity interference, and taking more prescription opioid medication compared with those who had typical bedtimes (P < 0.05). Based on average 3-month daily assessments, those subjects with an atypical bedtime consistently reported more sleep disturbances, pain, activity interference, negative mood, and general worsening conditions over time, and elevated pain catastrophizing, pain-related disability, emotional distress scores, and more prescription medication for pain at 3-month follow-up (P < 0.01).ConclusionThese results support the importance of providers asking patients with pain about what time they typically go to bed at night to gain a greater understanding of their lifestyle habits. Future studies are needed to further determine the importance of maintaining a typical bedtime among patients with chronic pain.Copyright © 2019 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The International Association for the Study of Pain.

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