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Intensive Care Medicine Experimental
Fig. 3 | Intensive Care Medicine Experimental

Fig. 3

From: Autonomic nervous system activity and the risk of nosocomial infection in critically ill patients with brain injury

Fig. 3

Longitudinal trends of heart rate variability. Daily averages of heart rate variability parameters in infected (black-dotted lines) and non-infected patients (black lines). Grey and dotted lines represent normal values in healthy volunteers as previously described in the literature52 (in figure c median and range and in figure b and d mean and standard deviation). a Heart rate in beats per minute presented as mean and standard deviation. b Low frequency normalized units (LFnu) presented as mean and standard deviation. c LF:HF ratio presented as median and interquartile range. d High frequency normalized units (HFnu) presented as mean and standard deviation. e Number of patients included for every time point. †p < 0.10; *p < 0.05

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