. Author manuscript; available in PMC: 2019 Jul 29.

Published in final edited form as: Dev Psychopathol. 2018 Aug;30(3):773–785. doi: 10.1017/S0954579418000639

Table 3.

Means and standard deviations for fetal neurobehavioral development over gestation

	1st testing session 24 weeks (n = 139)		2nd testing session 30 weeks (n = 125)		3rd testing session 36 weeks (n = 108)		Change over time
Variable	Mean	SD	Mean	SD	Mean	SD	Est	p
FHR	146.10	7.30	142.59	8.03	141.11	8.87	−2.45	<.0001
FHRV	6.69	2.72	7.20	3.00	8.10	4.54	0.72	.0024
Coupling	0.42	0.11	0.49	0.13	0.47	0.12	0.03	.0009
Movement	75991.64	58803.49	65067.61	55601.35	57619.40	57127.47	−16317	<.0001

Note: The change over time estimates presented here are the unstandardized coefficient for the slope term from the unconditional hierarchical linear models used to examine change in fetal neurobehavioral development across testing sessions. FHR, fetal heart rate. FHRV, fetal heart rate variability.