Table 3 Demographic and baseline characteristics of the overall cohort stratified by the coefficient of variation of heart rate
| Â | HR-CV categories | Â | Â | Â | Â |
|---|---|---|---|---|---|
|  |  < 0.08 |  ≥ 0.08 and < 0.10 |  ≥ 0.10 and < 0.12 |  ≥ 0.12 |  |
Parameter | N = 397 | N = 305 | N = 236 | N = 482 | P value |
Age (years) | 68.5 (14.6) | 69.3 (14.2) | 69.7 (14.0) | 71.3 (14.3) | 0.035 |
Men | 216 (54.4) | 163 (53.4) | 139 (58.9) | 295 (61.2) | 0.091 |
Hypertension | 310 (78.1) | 238 (78.0) | 170 (72.0) | 358 (74.3) | 0.222 |
Diabetes mellitus | 205 (51.6) | 132 (43.3) | 108 (45.8) | 171 (35.5) |  < 0.001 |
Dyslipidemia | 278 (70.0) | 191 (62.6) | 161 (68.2) | 273 (56.6) |  < 0.001 |
Atrial fibrillation | 39 (9.8) | 54 (17.7) | 55 (23.3) | 139 (28.8) |  < 0.001 |
Coronary artery disease | 33 (8.3) | 21 (6.9) | 16 (6.8) | 24 (5.0) | 0.263 |
Congestive heart failure | 19 (4.8) | 8 (2.6) | 10 (4.2) | 21 (4.4) | 0.519 |
Body mass index (kg/m2) | 24.7 (4.1) | 24.6 (3.7) | 24.5 (4.2) | 24.5 (4.4) | 0.819 |
Current smoker | 103 (25.9) | 68 (22.3) | 63 (28.0) | 103 (21.4) | 0.163 |
Total cholesterol (mmol/L) | 4.54 (1.11) | 4.59 (1.07) | 4.56 (1.05) | 4.43 (1.20) | 0.164 |
Triglyceride (mmol/L) | 1.52 (1.21) | 1.39 (0.86) | 1.45 (1.23) | 1.21 (0.75) |  < 0.001 |
eGFR (mL/min per 1.73 m2) | 63.6 (28.7) | 64.2 (30.7) | 64.7 (32.8) | 60.0 (26.3) | 0.090 |
Thrombolytic therapy | 18 (4.5) | 30 (9.8) | 30 (12.7) | 69 (14.3) |  < 0.001 |
Mean SBP (mmHg) | 153.4 (22.4) | 153.6 (21.3) | 151.5 (20.9) | 150.0 (20.2) | 0.050 |
Mean DBP (mmHg) | 86.9 (11.5) | 86.1 (12.6) | 85.5 (12.8) | 84.9 (12.1) | 0.086 |
NIHSS score on admission | 3 (1–6) | 3 (1–6) | 4 (2–9) | 4 (1–10) | 0.01 |