Table 4.
Subgroup analysis of crude and adjusted HRs (95% CI) of migraine for haemorrhagic stroke and ischaemic stroke
| Characteristics | Haemorrhagic stroke | Ischaemic stroke | ||||||
| Crude | P values | Adjusted* | P values | Crude | P values | Adjusted* | P values | |
| Migraine with aura (n = 17 290) | ||||||||
| Migraine | 0.531 | 0.506 | 0.006† | 0.009† | ||||
| Yes | 1.17 (0.72 to 1.90) | 1.19 (0.72–1.96) | 1.45 (1.11 to 1.88) | 1.44 (1.09–1.89) | ||||
| No | 1.00 | 1.00 | 1.00 | 1.00 | ||||
| Migraine without aura (n = 1 90 635) | ||||||||
| Migraine | 0.446 | 0.213 | <0.001† | <0.001† | ||||
| Yes | 1.05 (0.92 to 1.20) | 1.09 (0.95–1.25) | 1.16 (1.07 to 1.24) | 1.15 (1.06–1.24) | ||||
| No | 1.00 | 1.00 | 1.00 | 1.00 | ||||
*Model adjusted for age, sex, income, region of residence, hypertension, diabetes, dyslipidaemia, congestive heart failure, myocardial infarction, peripheral vascular disease, pulmonary disease, liver disease and depression histories.
†Cox proportional hazard regression model; differences were considered significant at P<0.05.