Table 1.
GEH in participants with different types of stroke
| Characteristics | No stroke (n=13 124) | Only TS (n=822) | Only ES (n=335) | Only ICH (n=120) | TS and ES (n=62) | ICH and TS/ES (n=16) | P value |
| Heart rate (SD), bpm | 66.1 (10.1) | 66.9 (10.9) | 66.4 (10.9) | 65.2 (10.3) | 67.8 (10.6) | 68.0 (5.8) | 0.193 |
| QRS duration (SD), ms | 92.2 (12.4) | 93.8 (13.8) | 93.0 (11.1) | 91.0 (11.3) | 91.1 (11.5) | 91.6 (12.7) | 0.007 |
| Bazett QTc (SD), ms | 416.0 (19.1) | 418.8 (20.5) | 418.5 (19.1) | 415.0 (17.0) | 418.4 (16.6) | 415.9 (20.8) | 0.0002 |
| ECG-LVH, n (%) | 677 (5.2) | 79 (9.7) | 34 (10.2) | 10 (8.3) | 3 (4.8) | 3 (18.8) | <0.0001 |
| PVC any visit, n (%) | 1052 (8.0) | 87 (10.6) | 53 (15.8) | 5 (4.2) | 4 (6.5) | 1 (6.3) | <0.0001 |
| BBB/IVCD, n (%) | 545 (4.2) | 42 (5.1) | 15 (4.5) | 3 (2.5) | 2 (3.2) | 1 (6.3) | 0.700 |
| TD-IBBB any visit, n (%) | 109 (0.83) | 7 (0.85) | 2 (0.60) | 3 (2.50) | 1 (1.61) | 0 (0) | 0.442 |
| Atrial fibrillation any visit, n (%) | 2554 (19.5) | 183 (22.3) | 233 (70.0) | 24 (20.0) | 38 (61.3) | 5 (31.3) | <0.0001 |
| PAC any visit, n (%) | 1083 (8.3) | 82 (10.0) | 43 (12.8) | 11 (9.2) | 5 (8.1) | 1 (6.3) | 0.040 |
| Median beat S or V at any visit, n (%) | 352 (2.7) | 14 (1.7) | 47 (14.0) | 2 (1.2) | 5 (8.1) | 1 (5.3) | <0.0001 |
| Abnormal PR interval, n (%) | 1163 (8.9) | 82 (10.0) | 40 (11.9) | 7 (5.8) | 9 (14.5) | 1 (6.3) | 0.121 |
| Abnormal frontal P axis, n (%) | 1069 (8.2) | 76 (9.3) | 27 (8.1) | 7 (5.8) | 6 (9.7) | 3 (18.8) | 0.455 |
| Abnormal PTF in V1, n (%) | 1242 (9.5) | 126 (15.3) | 47 (14.0) | 17 (14.2) | 9 (14.5) | 5 (31.3) | <0.0001 |
| Peak QRS-T angle (circular 95% CI), ° | 41.6 (41.1 to 42.0) | 46.5 (44.3 to 48.6) | 49.0 (45.3 to 52.7) | 45.6 (40.4 to 50.8) | 47.7 (38.8 to 56.6) | 58.7 (32.6 to 84.7) | <0.0001 |
| Area QRS-T angle (circular 95% CI), ° | 60.1 (59.6 to 60.5) | 63.8 (61.7 to 65.9) | 65.3 (62.0 to 68.6) | 60.0 (55.1 to 64.8) | 65.0 (57.9 to 72.1) | 71.3 (51.0 to 91.5) | 0.463 |
| Peak SVG elevation (circular SD), ° | 63.2 (62.9–63.4) | 64.9 (63.9–66.0) | 66.2 (64.5–67.9) | 63.2 (60.6–65.8) | 66.5 (62.8–70.2) | 68.4 (58.5–78.2) | 0.003 |
| Area SVG elevation (circular SD), ° | 67.2 (66.9–67.5) | 69.2 (68.0–70.4) | 70.0 (68.0–72.0) | 67.6 (64.8–70.5) | 69.3 (64.7–74.0) | 73.0 (62.7–83.3) | 0.035 |
| Peak SVG azimuth (circular SD),° | 2.5 (2.1–2.8) | 2.4 (0.9–3.9) | 4.1 (1.5–6.7) | 4.9 (1.3–8.6) | 4.7 (-0.5 to 9.9) | 5.4 (-8.5 to 19.3) | 0.148 |
| Area SVG azimuth (circular SD),° | 24.5 (24.1–24.9) | 24.6 (22.9–26.3) | 23.4 (20.8–26.0) | 26.9 (23.0–30.8) | 27.2 (21.6–32.8) | 26.4 (13.8–39.1) | 0.862 |
| SAIQRST, mV×ms | 142.2 (49.9) | 149.5 (55.8) | 151.1 (55.5) | 146.1 (51.4) | 143.0 (47.9) | 162.0 (62.2) | <0.0001 |
| Peak SVG magnitude (SD), mV | 1.60 (0.44) | 1.66 (0.46) | 1.64 (0.49) | 1.70 (0.49) | 1.66 (0.41) | 1.61 (0.40) | 0.0002 |
| SVG magnitude, mV | 1.70 (0.48) | 1.76 (0.53) | 1.74 (0.52) | 1.83 (0.57) | 1.72 (0.50) | 1.79 (0.45) | 0.003 |
ES, embolic stroke; GEH, global electrical heterogeneity; IVCD, interventricular conduction delay; LVH, left ventricular hypertrophy; PAC, premature atrial complexe; PTF, P-terminal force; PVC, premature ventricular contraction; SAIQRST, sum absolute QRST integral; SVG, spatial ventricular gradient; TD-IBBB, tachycardia-dependent intermittent bundle branch block; TS, thrombotic stroke.