Long-Term Measurement of Maternal Pulse Rate Dynamics Using a Home-Based Sleep Monitoring System

Table 1

Segmentation of recorded data and main features of each stage.

Stage	Period (week)	PR (bpm); (mean SD)	Histogram	Two peaks of Gaussian model	SampEn (mean SD)
AP	30th~41th		Asymmetric, leptokurtic	Similar High
PP 1	+1th~+5th		Negatively skewed, platykurtic	Similar High
PP 2	+6th~+10th		Negatively skewed, platykurtic	Main peak stays high; subpeak drops down
PP 3	+11th~+19th		Positively skewed, platykurtic, and bimodal	Main peak drops down; subpeak reverses high
PP 4	+20th~+36th		Positively skewed, leptokurtic	Main peak stays low; subpeak stays high
PP 5	+37th~+54th		Positively skewed, platykurtic	Both decrease
PP 6	+55th~+63rd		Positively skewed, leptokurtic	Both come close together
Nonpregnant woman	Whole period		Positively skewed, leptokurtic	Both stay close together

“+” indicates weeks after delivery.
Antepartum.
Postpartum.