Table 1.
Comparison of clinical characteristics between patients with stroke enrolled versus those not enrolled because of missing serum bilirubin levels
| Variable | Not enrolled (n = 303) | Enrolled (n = 743) |
|---|---|---|
| Age | 66.8 ± 18.1 | 67.5 ± 16.6 |
| Female | 149 (49.3%) | 353 (47.6%) |
| Race ethnicity | ||
| Non-Hispanic whites | 222 (74.5%) | 524 (70.8%) |
| Blacks | 27 (9.1%) | 68 (9.2%) |
| Hispanics | 23 (8.1%) | 77 (10.4%) |
| Asians | 24 (8.1%) | 65 (8.8%) |
| Stroke mechanisms | ||
| Cardioembolism | 98 (32.6%) | 256 (34.8%) |
| Large artery atherosclerosis | 79 (26.2%) | 137 (18.6%)* |
| Small arterial occlusion | 44 (14.6%) | 130 (17.7%) |
| Other | 47 (15.6%) | 86 (11.7%) |
| Unknown | 33 (11.0%) | 126 (17.1%)* |
| NIH Stroke Scale score on admission | 7.7 ± 8.6 | 7.3 ± 8.1 |
| Hypertension history | 204 (67.5%) | 495 (67.0%) |
| Diabetes history | 69 (22.8%) | 180 (24.3%) |
| Atrial fibrillation history | 59 (19.5%) | 146 (19.7%) |
| Hyperlipidemia history | 127 (42.1%)* | 256 (34.5%)* |
| Metabolic syndrome presence | 136 (54.8%) | 382 (60.2%) |
| Smoking habits | ||
| Nonsmoker | 197 (65.4%) | 471 (63.6%) |
| Ex-smoker | 61 (20.3%) | 176 (23.8%) |
| Current smoker | 43 (14.3%) | 94 (12.7%) |
| History of stroke | 69 (22.9%) | 166 (22.4%) |
| History of TIA | 35 (11.6%) | 76 (10.2%) |
| History of coronary heart disease | 76 (25.2%) | 158 (21.3%) |
| Laboratory findings on admission | ||
| Glucose | 124.4 ± 43.8 | 127.0 ± 53.9 |
| Premorbid medications | ||
| Antithrombotics | 135 (45.0%) | 367 (49.6%) |
| Warfarin | 28 (9.3%) | 72 (9.7%) |
| Statins | 100 (33.3%) | 230 (31.1%) |
| mRS at discharge | ||
| Poor outcome (mRS 4–6) | 64 (27.0%) | 175 (26.2%) |
mRS, modified Rankin score; NIH, National Institutes of Health; TIA, transient ischemic attack.
*
P value for comparison <.05.