The Sleep Disorders Inventory: an instrument for studies of sleep disturbance in persons with Alzheimer's disease - PubMed (original) (raw)

The Sleep Disorders Inventory: an instrument for studies of sleep disturbance in persons with Alzheimer's disease

Rochelle E Tractenberg et al. J Sleep Res. 2003 Dec.

Abstract

The Sleep Disorders Inventory (SDI) is an expanded version of one item of the Neuropsychiatric Inventory (NPI). It describes the frequency, severity, and caregiver burden of sleep-disturbed behaviors during a period prior to its administration. We carried out post hoc analyses on baseline responses to the SDI in 104 persons with Alzheimer's disease (AD) and live-in caregivers who had been recruited for a trial of melatonin in the treatment of sleep disturbance. These patient-participants averaged <7 h of sleep per night, measured by actigraph (sleep disturbance), for the 2-3-week period prior to administration of SDI. Data were from the 2 weeks prior to the baseline visit (SDI, NPI) including actigraph-derived sleep variables and 2 weeks' worth of sleep quality ratings (SQR) kept in a diary by caregivers, plus Mini-Mental State Examination and activities of daily living assessment at baseline. The prevalence of sleep disorder symptoms ranged from 34% (waking up at night thinking it is daytime) and 82% (getting up during the night). Worse SDI scores were associated with worse cognitive, functional, and behavioral status, but not with sex, age, education or duration of dementia. SDI scores were significantly worse in individuals meeting independently established criteria for a diagnosis of 'sleep disturbance' (<6 h total sleep time per night) whereas demographic variables and scores reflecting cognition and function were not significantly different across this grouping. The SDI covers a wide range of sleep behaviors and provides information independent of sleep time and SQR.

PubMed Disclaimer

Similar articles

Cited by

References

    1. Bliwise D. Sleep disorders in aging and dementia. In: Turk FW, Zee PC, editors. Regulation of Sleep and Circadian Rythms. Marcel Decker, Inc; New York, NY: 1999. pp. 498–499.
    1. Cummings JL, Mega M, Gray K, Rosenberg-Thompson S, Carusi DA, Gornbein J. The Neuropsychiatric Inventory: comprehensive assessment of psychopathology in dementia. Neurology. 1994;44:2308–2314. - PubMed
    1. Folstein MF, Folstein SE, McHugh PR. ‘Mini-Mental State’: a practical method for grading the cognitive state of patients for the clinician. J Psychiatric Research. 1974;12:189–198. - PubMed
    1. Galasko D, Bennet D, Sano M, Ernesto C, Thomas R, Grundman M, Ferris S and the Alzheimer’s Disease Cooperative Study. An inventory to assess activities of daily living for clinical trials in Alzheimer’s disease. Alz Dis Assoc Disord. 1997;11(Suppl 2):S33–S39. - PubMed
    1. Hamilton M. A rating scale for depression. J Neurol Neurosurg Psychiatry. 1960;23:56–62. - PMC - PubMed

Publication types

MeSH terms

LinkOut - more resources