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. Author manuscript; available in PMC: 2013 Jul 1.
Published in final edited form as: Arthritis Care Res (Hoboken). 2012 Jul;64(7):1070–1078. doi: 10.1002/acr.21630

Figure 1.

Figure 1

Rate of change in Wake Minutes for every 2 hour intervals after sleep onset in women with severe to extreme, moderate and mild or no WOMAC hip pain

_______ Severe to Extreme WOMAC hip pain on >=1 activity

__ _ _ __ Moderate WOMAC hip pain any activity

__ __ __ Mild or No WOMAC hip pain on all activities

Adjusted for age, education years, BMI, back pain and recent worsening of arthritis, depression, fatigue, health status, anxiety, number of blocks walked for exercise and current use of benzodiazepines, opioids, or NSAIDs medications.

P values are for interaction of Moderate WOMAC pain and Severe to Extreme hip pain with time after sleep onset compared to those with no WOMAC hip pain