Table 2 Autonomic parameters evaluated by both spectral and symbolic analysis in patients with community-acquired pneumonia (CAP) and controls
From: Cardiovascular autonomic alterations in hospitalized patients with community-acquired pneumonia
CAP patients n = 75 | Controls n = 26 | p | |
|---|---|---|---|
Parameter | |||
Heart rate, median (IQR) bpm | 80 (71–92) | 68 (60–73) | 0.006 |
Spectral analysis | |||
Total power, median (IQR) ms2 | 159 (79–368) | 522 (335–1760) | <0.001 |
VLF, median (IQR) ms2 | 49 (0–121) | 262 (99–983) | <0.001 |
LFnu, median (IQR) | 32 (11–63) | 56 (37–75) | 0.008 |
HFnu, median (IQR) | 42 (13–59) | 41 (22–55) | 0.935 |
LF/HF, median (IQR) | 0.92 (0.23–2.6) | 1.3 (0.73–3.1) | 0.120 |
HF Hz, median (IQR) | 0.31 (0.27–0.37) | 0.29 (0.26–0.33) | 0.096 |
Symbolic analysis | |||
0V, median (IQR) % | 26 (13–38) | 30 (12–46) | 0.451 |
1V, median (IQR) % | 39 (33–47) | 44 (38–49) | 0.077 |
2LV, median (IQR) % | 4.4 (2.2–8.5) | 6.0 (3.5–12) | 0.164 |
2UV, median (IQR) % | 24 (12–41) | 17 (12–24) | 0.020 |