Table 1.
Baseline Characteristics of Participants, Stratified by the Occurrence of Incident Ischemic Stroke
| Characteristic* | Stroke (N = 121) | No Stroke (N = 6,620) | P value |
|---|---|---|---|
| Age, mean (SD), y | 68.2 (9.8) | 62.0 (10.2) | <.001 |
| Female | 58 (47.9) | 3,509 (53.0) | .27 |
| Race/ethnicity: | .13 | ||
| White | 51 (42.1) | 2,525 (38.1) | |
| Black | 35 (28.9) | 1,844 (27.9) | |
| Hispanic | 29 (24.0) | 1,455 (22.0) | |
| Asian | 6 (5.0) | 796 (12.0) | |
| Diabetes status: | <.001 | ||
| Normal | 69 (57.5) | 4,868 (73.8) | |
| Impaired fasting glucose | 18 (15.0) | 911 (13.8) | |
| Untreated diabetes | 5 (4.2) | 172 (2.6) | |
| Treated diabetes | 28 (23.3) | 646 (9.8) | |
| Hypertension | 88 (72.7) | 2,931 (44.3) | <.001 |
| Chronic obstructive pulmonary disease | 10 (8.3) | 740 (11.2) | .31 |
| Chronic kidney disease | 29 (24.0) | 1,105 (16.7) | .03 |
| Current smoker | 18 (14.9) | 864 (13.1) | .56 |
| Left ventricular hypertrophy | 17 (14.1) | 408 (6.2) | <.001 |
| Total cholesterol, mean (SD), mg/dl | 198.0 (33.9) | 194.1 (35.8) | .24 |
| High-density lipoprotein, mean (SD), mg/dl | 47.8 (12.3) | 51.0 (14.8) | .02 |
| Low-density lipoprotein, mean (SD), mg/dl | 121.6 (30.2) | 117.2 (31.5) | .13 |
| Body mass index: | .23 | ||
| <25 kg/mM2 | 25 (20.7) | 1,906 (28.8) | |
| 25–25.99 kg/m2 | 51 (42.1) | 2,591 (39.1) | |
| 30–39.99 kg/m2 | 41 (33.9) | 1,881 (28.4) | |
| >40 kg/m2 | 4 (3.3) | 242 (3.7) | |
| P-wave terminal force in lead V1 (PTFV1): | |||
| Mean (SD), μV*ms | 2,860 (1,996) | 2,171 (1,786) | <.001 |
| ≥95th percentile | 14 (11.6) | 324 (4.9) | .001 |
Abbreviations: SD, standard deviation.
*
Data are presented as Number (%) of participants unless otherwise specified.