Table 1.

Changes in the time-domain parameters of HRV indicators before and after a nocturnal treatment.

Variable	Pre-treatment	Post-treatment	Univariate p	Multivariate p
R-R interval	874.59 (118.3)	911.94 (114.5)	<0.001	<0.001
SDNNI	111.96 (86.9)	96.5 (76.5)	0.036	0.049
SDANN	78.14 (57.0)	89.79 (76.7)	0.473	0.617
NN50	1742.5 (1501.8)	2298.5357 (2577.7)	0.093	0.165
pNN50	20.55 (20.0)	18.1 (21.6)	0.082	0.138
RMSSD	121.61 (133.9)	105.75 (121.9)	0.107	0.132
HRV triangular index	23.32 (37.6)	15.18 (9.6)	0.252	0.266