Table 1 Demographic characteristics of study populations and stratified prevalence of stroke [n(%)]
Variables | High risk population for stroke | Overall stroke | Ischemic stroke | Hemorrhagic stroke |
|---|---|---|---|---|
Total (n = 16,892) | 2893 (17.1%) | 524 (3.1%) | 429 (2.5%) | 95 (0.6%) |
Sex | ||||
 Male(n = 5411) | 1370 (25.3%) | 201 (3.7%) | 158 (2.9%) | 43 (0.8%) |
 Female(n = 11,481) | 1523 (13.3%) | 323 (2.8%) | 271 (2.4%) | 52 (0.5%) |
 P value | <  0.001 | 0.003 (9.94) | 0.029 (4.65) | 0.006 (7.68) |
Age, y | ||||
 40–49(n = 3524) | 318 (9.0%) | 37 (1.0%) | 30 (0.8%) | 7 (0.2%) |
 50–59(n = 5106) | 686 (13.4%) | 103 (2.0%) | 87 (1.7%) | 16 (0.3%) |
 60–69(n = 5803) | 1125 (19.4%) | 228 (3.9%) | 188 (3.2%) | 40 (0.7%) |
 70–79(n = 2183) | 629 (28.8%) | 131 (6.0%) | 106 (4.9%) | 25 (1.1%) |
  ≥ 80(n = 276) | 135 (48.9%) | 25 (9.1%) | 18 (6.5%) | 7 (2.5%) |
 P value | <  0.001 | <  0.001 | <  0.001 | <  0.001 |
Residence | ||||
 Urban(n = 8889) | 1361 (15.3%) | 260 (2.9%) | 203 (2.3%) | 57 (0.6%) |
 Rural(n = 8003) | 1532 (19.1%) | 264 (3.3%) | 226 (2.8%) | 38 (0.5%) |
 P value | <  0.001 | 0.186 (1.96) | 0.026 (4.96) | 0.173 (2.09) |
Education | ||||
 Primary school or below (n = 8331) | 1948 (23.4%) | 369 (4.4%) | 310 (3.7%) | 59 (0.7%) |
 Junior middle school(n = 3312) | 568 (17.1%) | 106 (3.2%) | 83 (2.5%) | 23 (0.7%) |
 Senior middle school (n = 3111) | 228 (7.3%) | 33 (1.1%) | 23 (0.7%) | 10 (0.3%) |
 College or above (n = 2138) | 149 (0.7%) | 16 (0.7%) | 13 (0.6%) | 3 (0.1%) |
 P value | <  0.001 | <  0.001 | <  0.001 | 0.017 (10.6) |
Overweight/obesity | ||||
 Yes(n = 8615) | 1545 (17.9%) | 355 (4.1%) | 290 (3.4%) | 65 (0.8%) |
 No(n = 8277) | 1348 (16.3%) | 169 (2.0%) | 139 (1.7%) | 30 (0.4%) |
 P value | 0.004 (8.07) | <  0.001 | <  0.001 | <  0.001 |
Smoking | ||||
 Yes(n = 3676) | 748 (20.3%) | 139 (3.8%) | 114 (3.1%) | 25 (0.7%) |
 No(n = 13,216) | 2145 (16.2%) | 385 (2.9%) | 315 (2.4%) | 70 (0.5%) |
 P value | <  0.001 | 0.006 (7.2) | 0.017 (5.98) | 0.283 (1.16) |
Physical inactivity | ||||
 Yes(n = 8226) | 1752 (21.3%) | 305 (3.7%) | 251 (3.1%) | 54 (0.7%) |
 No(n = 8666) | 1141 (13.2%) | 219 (2.5%) | 178 (2.1%) | 41 (0.5%) |
 P value | <  0.001 | <  0.001 | <  0.001 | 0.124 (2.54) |
Hypertension | ||||
 Yes(n = 7018) | 2082 (29.7%) | 313 (4.5%) | 246 (3.5%) | 67 (1.0%) |
 No(n = 9874) | 811 (8.2%) | 211 (2.1%) | 183 (1.9%) | 28 (0.3%) |
 P value | <  0.001 | <  0.001 | <  0.001 | <  0.001 |
Diabetes | ||||
 Yes(n = 2754) | 780 (28.3%) | 106 (3.8%) | 94 (3.4%) | 12 (0.4%) |
 No(n = 14,138) | 2113 (14.9%) | 418 (3.0%) | 335 (2.4%) | 83 (0.6%) |
 P value | <  0.001 | 0.013 (6.1) | 0.003 (10.1) | 0.323 (0.94) |
Dyslipidemia | ||||
 Yes(n = 3235) | 822 (25.4%) | 141 (4.4%) | 108 (3.3%) | 33 (1.0%) |
 No(n = 13,657) | 2071 (15.2%) | 383 (2.8%) | 321 (2.4%) | 62 (0.5%) |
 P value | <  0.001 | <  0.001 | <  0.001 | <  0.001 |
Atrial fibrillation | ||||
 Yes(n = 232) | 72 (31.0%) | 14 (6.0%) | 13 (5.6%) | 1 (0.4%) |
 No(n = 16,660) | 2821 (17.1%) | 510 (3.1%) | 416 (2.5%) | 94 (0.6%) |
 P value | <  0.001 | 0.009 (6.7) | 0.006 (8.9) | 0.138 (2.2) |
Family history | ||||
 Yes(n = 2224) | 528 (23.7%) | 86 (3.9%) | 55 (2.5%) | 31 (1.4%) |
 No(n = 14,668) | 2365 (16.1%) | 438 (2.9%) | 374 (2.5%) | 64 (0.4%) |
 P value | <  0.001 | 0.027 (4.98) | 0.984 (0.05) | <  0.001 |