Distribution of established risk factors for total stroke and stroke pathological types in men and women in CKB
| Risk factors included in FSRP* | Men | Women | ||||||
| No stroke (n=185 706) | Total stroke (n=19 587) | IS (n=16 113) | HS (n=4587) | No stroke (n=274 902) | Total stroke (n=23 647) | IS (n=20 197) | HS (n=4278) | |
| Age, mean, year | 51.8 | 60.7 | 60.8 | 60.8 | 50.6 | 59.6 | 59.7 | 59.4 |
| Current smoking, % | 68.5 | 59.9 | 58.7 | 63.8 | 3.1 | 4.8 | 4.7 | 5.4 |
| Coronary heart disease, % | 2.1 | 6.4 | 6.8 | 4.8 | 2.5 | 9.4 | 10.0 | 5.6 |
| Age 65 years+, % | 13.8 | 39.9 | 39.9 | 41.4 | 10.7 | 34.0 | 34.1 | 34.6 |
| Diabetes at age <65 years, % | 3.7 | 6.5 | 7.0 | 4.7 | 4.0 | 8.1 | 8.6 | 6.3 |
| Diabetes at age 65+ years % | 1.1 | 4.8 | 5.3 | 3.8 | 1.3 | 6.0 | 6.3 | 4.7 |
| BP-lowering treatment, % | 8.6 | 22.3 | 22.6 | 22.9 | 10.1 | 26.3 | 26.3 | 29.4 |
| SBP-untreated, mean, mm Hg | 130 | 142 | 141 | 148 | 126 | 138 | 137 | 148 |
| SBP-treated, mean, mm Hg | 148 | 153 | 152 | 158 | 150 | 155 | 154 | 162 |
‘No stroke’ column includes individuals lost to follow-up before 9 years, and were stroke-free until being censored.
*Atrial fibrillation was not recorded in CKB.
CKB, China Kadoorie Biobank; FSRP, Framingham Stroke Risk Profile; HS, haemorrhagic stroke; IS, ischaemic stroke; SBP, systolic blood pressure.