Table 2.

Basic comparison of day and night fetal heart rate (FHR) parameters in normal fetuses at home and in hospital setting

	Home (n = 30)			Hospital (n = 24)
Parameters	Day recordings	Night recordings	P value	Day recordings	Night recordings	P value
bFHR (bpm)	136.1 ± 9.2	131.6 ± 7.4	=0.005	142.6 ± 9.3	131.9 ± 8.6	<0.0001
STV (ms)	10.9 ± 2.7	11.8 ± 2.8	0.04	10.5 ± 2.7	11.7 ± 3.1	=0.024
LTV (ms)	58.3 ± 14.1	63.3 ± 14.8	=0.009	56.3 ± 14.2	63.4 ± 16.6	=0.017
Accelerations (numbers)	10.0 [6.5–14.0]	13.0 [9.8–17.0]	<0.0001	10.2 [7.0–13.8]	13.5 [9.0–17.0]	>0.1
HV (ms)	58.5 [43.3–68.3]	58.5 [51.4–73.5]	=0.09	51.7 [37.1–66.7]	67.2 [54.1–72.8]	<0.001
RMSSD (ms)	11.0 ± 1.6	10.7 ± 1.6	>0.3	10.7	10.3	>0.5

Data are shown as mean ± SD or median [IQR]

bFHR basal fetal heart rate, STV short term variation, ms milliseconds, LTV long term variation, HV high variation, RMSSD root mean square of successive difference