|
|
|
|
Seventeen cerebral infarctions and 14 intracerebral hemorrhages occurred in women who were or had recently been pregnant(pregnancy-related strokes),and there were 175 cerebral infarctions and 48 intracerebral hemorrhages that were not related to pregnancy.For cerebral infarction,the relative risk during pregnancy,adjusted for age and race,was 0.7(95 percent confidence interval,0.3 to 1.6),but it increased to 8.7 for the postpartum period(after a live birth or stillbirth)(95 percent confidence interval,4.6 to 16.7).For intracerebral hemorrhage,the adjusted relative risk was 2.5 during pregnancy(95 percent confidence interval,1.0 to 6.4) but 28.3 for the postpartum period(95 percent confidence interval,13.0 to 61.4).Overall,for either type of stroke during or within six weeks after pregnancy,the adjusted relative risk was 2.4(95 percent confidence interval,1.6 to 3.6),and the attributable,or excess,risk was 8.1 strokes per 100,000 pregnancies(95 percent confidence interval,6.4 to 9.7).The risks of both cerebral infarction and intracerebral hemorrhage are increased in the six weeks after delivery but not during pregnancy itself. |
|