Journal
SLEEP MEDICINE REVIEWS
Volume 39, Issue -, Pages 82-97Publisher
W B SAUNDERS CO LTD
DOI: 10.1016/j.smrv.2017.08.001
Keywords
Sleep; Pain; Health; Public health; Prospective; Longitudinal; Systematic review; Meta-analysis
Categories
Funding
- National Institute for Health Research, UK [PB-PG-0213-30121]
- NIHR under its Research for Patient Benefit (RfPB) Programme
- National Institutes of Health Research (NIHR) [PB-PG-0213-30121] Funding Source: National Institutes of Health Research (NIHR)
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Emerging longitudinal research has highlighted poor sleep as a risk factor of a range of adverse health outcomes, including disabling pain conditions. In establishing the causal role of sleep in pain, it remains to be clarified whether sleep deterioration over time is a driver of pain and whether sleep improvement can mitigate pain-related outcomes. A systematic literature search was performed using PubMed MEDLINE, Ovid EMBASE, and Proquest PsycINFO, to identify 16 longitudinal studies involving 61,000 participants. The studies evaluated the effect of sleep changes (simulating sleep deterioration, sleep stability, and sleep improvement) on subsequent pain-related outcomes in the general population. A decline in sleep quality and sleep quantity was associated with a two-to three-fold increase in risk of developing a pain condition, small elevations in levels of inflammatory markers, and a decline in self-reported physical health status. An exploratory meta-analysis further revealed that deterioration in sleep was associated with worse self-reported physical functioning (medium effect size), whilst improvement in sleep was associated with better physical functioning (small effect size). The review consolidates evidence that changes in sleep are prospectively associated with pain-related outcomes and highlights the need for further longitudinal investigations on the long-term impact of sleep improvements. (C) 2017 The Authors. Published by Elsevier Ltd.
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