Table 1 Baseline characteristic of study populations by education levels.
From: Education and stroke: evidence from epidemiology and Mendelian randomization study
Characteristic | Total (n = 11,509) | Basic (n = 2,475) | Intermediate (n = 4,785) | Advanced (n = 4,249) | P value |
|---|---|---|---|---|---|
Age, years | 54.0 ± 5.7 | 55.9 ± 5.6 | 53.8 ± 5.6 | 53.2 ± 5.7 | < 0.001 |
Male | 5182 (45.0%) | 1126 (45.5%) | 1901 (39.7%) | 2155 (50.7%) | < 0.001 |
Black | 2634 (22.9%) | 1077 (43.5%) | 740 (15.5%) | 817 (19.2%) | < 0.001 |
Smoking | < 0.001 | ||||
Never | 4846 (42.1%) | 908 (36.7%) | 2024 (42.3%) | 1914 (45.0%) | |
Former | 3676 (31.9%) | 732 (29.6%) | 1456 (30.4%) | 1488 (35.0%) | |
Current | 2987 (26.0%) | 835 (33.7%) | 1305 (27.3%) | 847 (19.9%) | |
Drinking | < 0.001 | ||||
Never | 2738 (23.8%) | 824 (33.3%) | 1147 (24.0%) | 767 (18.1%) | |
Former | 2038 (17.7%) | 722 (29.2%) | 793 (16.6%) | 523 (12.3%) | |
Current | 6733 (58.5%) | 929 (37.5%) | 2845 (59.5%) | 2959 (69.6%) | |
BMI, kg/m2 | 27.4 ± 5.2 | 28.5 ± 5.9 | 27.3 ± 5.2 | 26.9 ± 4.7 | < 0.001 |
SBP, mmHg | 120.6 ± 18.5 | 125.9 ± 20.1 | 120.2 ± 18.3 | 118.2 ± 17.1 | < 0.001 |
DBP, mmHg | 73.4 ± 11.1 | 75.0 ± 12.1 | 72.9 ± 10.8 | 72.9 ± 10.7 | < 0.001 |
Sport | 2.46 ± 0.8 | 2.22 ± 0.7 | 2.43 ± 0.8 | 2.63 ± 0.8 | < 0.001 |
Creatinine, mg/dl | 1.1 ± 0.4 | 1.1 ± 0.5 | 1.1 ± 0.4 | 1.1 ± 0.3 | < 0.001 |
HDL-c, mmol/L | 1.4 ± 0.4 | 1.3 ± 0.4 | 1.3 ± 0.4 | 1.4 ± 0.4 | 0.031 |
LDL-c, mmol/L | 3.5 ± 1.0 | 3.6 ± 1.1 | 3.6 ± 1.0 | 3.5 ± 1.0 | < 0.001 |
TC, mmol/L | 5.5 ± 1.1 | 5.6 ± 1.1 | 5.6 ± 1.1 | 5.4 ± 1.0 | < 0.001 |
TG, mmol/L | 1.4 ± 0.7 | 1.4 ± 0.7 | 1.4 ± 0.7 | 1.3 ± 0.7 | < 0.001 |
Glucose, mmol/L | 5.9 ± 2.0 | 6.3 ± 2.7 | 5.9 ± 2.0 | 5.7 ± 1.5 | < 0.001 |
PLT, 103/mm3 | 257.9 ± 64.7 | 254.9 ± 67.5 | 260.0 ± 64.8 | 257.4 ± 63.0 | 0.006 |
Diabetes | 932 (8.1%) | 347 (14.0%) | 344 (7.2%) | 241 (5.7%) | < 0.001 |
Stain | 51 (0.4%) | 9 (0.4%) | 24 (0.5%) | 18 (0.4%) | 0.683 |
Aspirin | 5262 (45.7%) | 1014 (41.0%) | 2300 (48.1%) | 1948 (45.8%) | < 0.001 |
Anticoagulants | 32 (0.3%) | 16 (0.6%) | 8 (0.2%) | 8 (0.2%) | < 0.001 |
