%0 Journal Article %K Adult %K Female %K Humans %K Follow-Up Studies %K Male %K Treatment Outcome %K Middle Aged %K Prognosis %K Severity of Illness Index %K Low back pain %K Pain Measurement %K Longitudinal Studies %K Randomized Controlled Trials as Topic %K Acetaminophen %K Models, Statistical %K Analgesics, Non-Narcotic %K Sleep Wake Disorders %B Arthritis Rheumatol %D 2014 %G eng %N 5 %P 1388-94 %R 10.1002/art.38329 %T Poor sleep quality is strongly associated with subsequent pain intensity in patients with acute low back pain. %V 66