Between-laboratory and Demographic Effects on Heart Rate and Its Variability During Sleep
نویسندگان
چکیده
This work statistically analyzed the between-laboratory and demographic effects on cardiac activity during sleep in a multi-laboratory sleep monitoring study. A multilevel analysis was employed to evaluate these effects on two cardiac parameters expressing heart rate and heart rate variability. Results show that the two parameters vary between sleep stages and from subject to subject while there are no differences found between laboratories. In addition, these two parameters exhibit differently for subjects varied in their demographics.
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