BioMed Research International

Research Article

Monitorization of Autonomic Stress Response of Nurse Students in Hospital Clinical Simulation

Table 3

Differences between the low- and high-score groups in the variables analyzed.


		RMSSD		PNN50		SD1		SD2		LF		SUDS

Pre-SUDS	Low score		0.015				0.015
Pre-SUDS	High score		0.015				0.015
Post-SUDS	Low score												0.002
Post-SUDS	High score												0.002
LET	Low score		0.023		0.010		0.025		0.046		0.035
LET	High score		0.023		0.010		0.025		0.046		0.035
PSS	Low score		0.026		0.043		0.006
PSS	High score		0.026		0.043		0.006
Neuroticism	Low score		0.027
Neuroticism	High score		0.027

LET: Life Engagement Test; PSS: Perceived Stress Scale; pre-SUDS: subjective measure of stress minutes before the simulation; post-SUDS: subjective measure of stress minutes after the simulation; LF: the low-frequency band in normalized units (low-frequency); PNN50: the number of successive differences of intervals which differ by more than 50 ms expressed as a percentage of the total; RMSSD: the square root of the average of the sum of the squared differences between adjacent normal R-R intervals; SD1: sensitivity of the short-term variability of the nonlinear spectrum of the HRV; SD2: sensitivity of the long-term variability of the nonlinear spectrum of the HRV.