@inproceedings{3f473762ce6c45ed8ebd789279f4e8dd,
title = "A comparison of holter and polysomnogram-based detection of bed and wake times",
abstract = "To determine if bed and wake times can be determined from continuous ECG recordings in the elderly, PSG (polysomnogram), ECG channels were extracted and scanned on a Holter analyzer for N=56 participants (age 76±3) in the Sleep Heart Health Study who had 2 PSGs 5 years apart. Bed and wake times were determined from a combination of 5-min averagaed HR and HRV patterns and from HR tachograms of normal-to-normal intervals. Bed and wake times were also extracted from the PSGs. PSG-and HRV bed and wake times were compared via paired t-tests and correlation analysis. Correlations between PSG-and HRV-determined bed and wake times were ≤0.95. HRV-derived bed and wake times were slightly (4±7 min) earlier for and 5±11 min earlier the 2 PSGs, p≤0.001. Mean PSG and ECG-based wake times were closer (12±20s earlier, p=0.069 and 2±8 min later, p=0.049 for the 2 PSGs). Therefore, determination of bedtime and wake time patterns in large Holter cohorts without activity diaries is feasible.",
author = "Stein, {P. K.} and Cohen, {R. J.} and B. Mau and Domitrovich, {P. P.} and Gottdiener, {J. S.} and Redline, {S. R.}",
year = "2007",
month = dec,
day = "1",
doi = "10.1109/CIC.2007.4745581",
language = "English",
isbn = "9781424425334",
series = "Computers in Cardiology",
pages = "697--700",
booktitle = "Computers in Cardiology 2007, CAR 2007",
note = "null ; Conference date: 30-09-2007 Through 03-10-2007",
}