Sleep
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Clinical Trial Controlled Clinical Trial
Sleep in depressed and nondepressed participants with chronic low back pain: electroencephalographic and behaviour findings.
To study the nature of sleep disturbance in depressed and nondepressed patients with chronic low back pain (CLBP). ⋯ Lower sigma power in participants with CLBP suggests less-effective sensorimotor gating that may contribute to poor sleep quality. Pain subgroup differences underscore the need to consider the influence of depression in the evaluation of sleep in clinical populations. This study controlled for many factors other than pain that may contribute to the sleep complaints in this population. Consequently, the absence of signs of major sleep disturbance must not be interpreted as evidence of a lack of a true sleep problem in CLBP but more likely reflects control of these factors as well as the difficulty in measuring sleep quality.