Table 1.
Baseline characteristics and HRV parameters of 308 HEBRAS patients included in the analysis.
| Baseline characteristics | |
| Age, median (IQR) | 69 (58–75) |
| Female Sex, n (%) | 117 (37.0%) |
| Initial NIHSS | 2 (1–4) |
| History of hypertension, n (%) | 183 (57.9%) |
| History of diabetes, n (%) | 64 (20.3%) |
| History of coronary artery disease, n (%) | 30 (9.5%) |
| History of heart failure, n (%) | 4 (1.3%) |
| History of stroke/TIA, n (%) | 59 (18.7%) |
| Beta-blockers on admission, n (%) | 90 (28.5%) |
| RAAS inhibitors on admission, n (%) | 120 (38.0%) |
| Antidepressants on admission, n (%) | 12 (3.9%) |
| HRV parameters | |
| SDNN during daytime (ms), median (IQR) | 35.5 (25–49) |
| RMSSD during daytime (ms), median (IQR) | 20 (13–32) |
| LF during daytime (nu), median (IQR) | 71.34 (52.8–83.14) |
| HF during daytime (nu), median (IQR) | 21.02 (13.53–34.23) |
| LF/HF ratio during daytime, median (IQR) | 3.28 (1.60–6.08) |
| SDNN during nighttime (ms), median (IQR) | 37 (23–54) |
| RMSSD during nighttime (ms), median (IQR) | 26 (17–39) |
| LF during nighttime (nu), median (IQR) | 66.65 (46.96–81.79) |
| HF during nighttime (nu), median (IQR) | 27.92 (15.92–43.27) |
| LF/HF ratio during nighttime, median (IQR) | 2.30 (1.03–5.17) |
NIHSS, National Institute of Health Stroke Scale; TIA, transient ischemic attack; RAAS, renin angiotensin aldosteron system; HRV, heart rate variability; SDNN, standard deviation of beat-to-beat (NN) intervals; RMSSD, Root Mean Square of Successive Differences; LF, low frequency power component; HF, high frequency power component.