Comparison of Sleep Parameters from Actigraphy and Polysomnography in Older Women: The SOF Study
| Autor: | Jennifer L. Schneider, Jane A. Cauley, Susan Surovec, Sonia Ancoli-Israel, Katie L. Stone, Nathan Johnson, Terri Blackwell, Susan Redline |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Sleep Wake Disorders
medicine.medical_specialty Polysomnography Surveys and Questionnaires Measurement of Sleep in Older Women Physiology (medical) medicine Humans Circadian rhythm Aged Aged 80 and over medicine.diagnostic_test Actigraphy bacterial infections and mycoses Sleep time Sleep in non-human animals Sleep deprivation Anesthesia Physical therapy Sleep Deprivation Female Neurology (clinical) Sleep onset medicine.symptom Psychology psychological phenomena and processes |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 1550-9109 0161-8105 |
| DOI: | 10.1093/sleep/31.2.283 |
| Popis: | Total sleep time (TST), sleep efficiency (SE), and wake after sleep onset (WASO) as assessed by actigraphy gathered in 3 different modes were compared to polysomnography (PSG) measurements. Each mode was compared to PSG to determine which was more accurate. Associations of the difference in TST measurement with demographics and sleep characteristics were examined.Observational study.Community-based.Sixty-eight women (mean age 81.9 years) from the latest visit of the Study of Osteoporotic Fractures who were concurrently measured with PSG and actigraphy.N/A.In-home 12-channel PSG was gathered along with actigraphy data in 3 modes: proportional integration mode (PIM), time above threshold (TAT) and zero crossings mode (ZCM). The PIM mode corresponded better to PSG, with a mean overestimation of TST of 17.9 min. For the PIM mode, the estimation of TST and SE by PSG and actigraphy significantly differed (P0.01), while the estimation of WASO was similar (P = 0.27). The intraclass correlation between the 2 procedures was moderate to high (PIM mode: TST 0.76; SE 0.61; WASO 0.58). On average, the PIM mode underestimated TST by 68 min for those who sleptor = 5 hr, overestimated TST by 31 min for those with SE70%, and underestimated TST by 24 min for self-reported poor sleepers (P0.05).Sleep parameters from actigraphy corresponded reasonably well to PSG in this population, with the PIM mode of actigraphy correlating highest. Those with poor sleep quality had the largest measurement error between the 2 procedures. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|