Osteoarthritis: Poor Sleep Linked to More Pain

PainRelief.com Interview with:
Dr. Daniel Whibley PhD
Department of Physical Medicine and Rehabilitation
University of Michigan, Ann Arbor, Michigan
Epidemiology Group, School of Medicine, Medical Sciences and Nutrition
University of Aberdeen, Scotland, UK

PainRelief.com:  What is the background for this study?  What are the main findings?

Response: Older adults with osteoarthritis commonly report symptoms of pain, fatigue and poor sleep quality. Previous research has investigated how this symptoms are cross-sectionally and longitudinally associated with each other. However, no previous studies have investigated how the quality of a night’s sleep impacts on the next day’s course of pain and fatigue in this clinical population.

We found that poor sleep quality was associated with greater pain intensity and fatigue on awakening when compared to a good night’s sleep and that, over the course of the day, the effects were sustained. Although a night of better quality sleep was associated with less pain and fatigue on awakening,  these symptoms worsened more rapidly throughout the day, such that as the day progressed the effect of the previous night’s sleep became less and less important.

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Migraine Linked to Poor Sleep and Sleep Apnea

PainRelief.com Interview with:

Dawn C. Buse PhD
 Clinical Professor of Neurology
 Albert Einstein College of Medicine
 New York City

Dawn C. Buse PhD
Clinical Professor of Neurology
Albert Einstein College of Medicine
New York City

PainRelief.com:  What is the background for this study?

Response: Sleep is essential in the regulation of a wide range of homeostatic functions.  Dysregulation of sleep process may be triggers for migraine attacks and increase the risk of migraine disease chronification.  Migraine is comorbid with a range of medical, neurologic, and psychiatric comorbidities that may exacerbate the disease, complicate treatment, and reduce health-related quality of life.  These comorbidities include sleep disorders such as sleep apnea, insomnia, circadian rhythm (i.e., sleep-wake) disorders, and sleep movement disorders.

The Chronic Migraine Epidemiology and Outcomes (CaMEO) Study is a longitudinal study that used a series of web-based surveys over 15 months to assess migraine symptoms, burden and patterns of healthcare utilization among people in the US population.  Validated questionnaires were used to assess many comorbidities.  Migraine can be classified based on the number of headache days per month into episodic migraine (<15 headache days/month) and chronic migraine (≥15 headache days/month).

In this cross-sectional analysis of data from the Chronic Migraine Epidemiology and Outcomes (CaMEO) Study, we assessed sleep apnea and poor sleep quality in a US population based sample of 12,810 people with migraine.  Respondents were stratified by episodic (11,699) and chronic (1,111) migraine and by body mass index (BMI).