Table. Baseline Characteristics of Study Population.
| Characteristic | Patients, No. (%) | P value | |
|---|---|---|---|
| CNSR I (N = 10 952) | CNSR III (N = 10 348) | ||
| Age, median (IQR), y | 67 (57-75) | 63 (54-70) | <.001 |
| Men | 6740 (61.5) | 7128 (68.9) | <.001 |
| Education level | |||
| ≤Elementary school | 5028 (45.9) | 2852 (27.6) | <.001 |
| Middle school | 2813 (25.7) | 3030 (29.3) | |
| ≥High school | 3111 (28.4) | 2957 (28.6) | |
| Unknown | NA | 1509 (14.6) | |
| Current smoking | 2912 (26.6) | 3328 (32.2) | <.001 |
| Current drinking | 2974 (27.2) | 1735 (16.8) | <.001 |
| Medical history | |||
| Prior stroke | 3762 (34.3) | 2316 (22.4) | <.001 |
| Hypertension | 7017 (64.1) | 6533 (63.1) | .16 |
| Diabetes | 2367 (21.6) | 2498 (24.1) | <.001 |
| Coronary heart disease | 1613 (14.7) | 1117 (10.8) | <.001 |
| Atrial fibrillation | 848 (7.7) | 753 (7.3) | .20 |
| Time from onset to admission, median (IQR), d | 1 (0-2) | 1 (0-2) | <.001 |
| NIHSS score on admission, median (IQR) | 5 (2-9) | 3 (2-6) | <.001 |
| Lipid level, median (IQR), mg/dLa | |||
| Triglycerides | 124.78 (89.38-182.30) | 121.24 (91.15-167.26) | <.001 |
| HDL-C | 45.17 (37.84-54.44) | 41.31 (34.75-49.42) | <.001 |
| LDL-C | 108.11 (86.10-131.27) | 90.35 (67.57-116.22) | <.001 |
| Thrombolytic therapy | 420 (3.8) | 967 (9.3) | <.001 |
Abbreviations: CNSR, China National Stroke Registry; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; NA, not applicable; NIHSS, National Institutes of Health Stroke Scale.
SI conversion factors: To convert HDL-C and LDL-C to mmol/L, multiply by 0.0259; triglycerides to mmol/L, multiply by 0.0113.
a
The number of patients with triglyceride, HDL-C, and LDL-C levels measured in CNSR I was 9840, 9725, and 9680, respectively.