Insomnia is a significant problem for many @entity1 with @entity1118 . In this study, we used a combination of daily sleep diaries and ambulatory activity monitoring (actigraphy) to: (i) examine the nature and severity of the @entity25 in this @entity1 group; (ii) determine the concordance between sleep diary and actigraph measures of different sleep parameters; (iii) assess the reliability of sleep parameters across nights; and (iv) identify the clinical correlates of @entity22 severity. Forty subjects with @entity22 associated with chronic @entity4512 completed questionnaires addressing clinical issues of @entity158 severity, medication use, sleep quality, and affective distress. For 2 consecutive nights, each subject then completed a sleep diary and wore an actigraph unit on the non-dominant wrist. The results showed that the sleep diaries and the actigraphs provided similar estimates of total sleep time, time awake after sleep onset, and sleep efficiency, but differed in the measurement of sleep onset latency and nocturnal awakenings. Both methods of assessment exhibited low to moderate reliability across nights. Measures of the same sleep parameters across the two methods of assessment showed low concordance. Of the clinical variables, @entity158 severity had the strongest association with disturbed sleep, but only using the diary method of assessment. Subjects who reported high @entity158 severity also reported greater @entity25 than subjects with @entity158 severity, but this was not confirmed by actigraphy. In general, both methods of assessment point to the significance of @entity22 associated with chronic @entity4512 as a distinct clinical problem, but the activity monitoring and self-report procedures provide different information. These findings suggest that multi-method assessment is an important consideration for studies of @entity22 in @entity1 with @entity1118 .

Daily diary and ambulatory activity monitoring of sleep in XXXX with @entity22 associated with chronic @entity4512 .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient', 'people'] @entity4512 :: ('MESH:D059352', 'Disease') :: ['musculoskeletal pain'] @entity158 :: ('MESH:D010146', 'Disease') :: ['low pain', 'pain'] @entity1118 :: ('MESH:D059350', 'Disease') :: ['chronic pain'] @entity25 :: ('MESH:D012893', 'Disease') :: ['sleep impairment', 'sleep disturbance'] @entity22 :: ('MESH:D007319', 'Disease') :: ['insomnia']
@entity1 :: (9606,Species) :: ['patients']
