In this study, researchers analyzed much more than 150 million childbirth-related hospitalizations from 1970 until eventually 2010. Overall, researchers observed a similar rate of cognitive decline between those taking high blood pressure treatment and those without a normal blood pressure rate.
A new study has found that rates of high blood pressure among older pregnant women are on the increase in the US. Instead, advancing maternal age and year of delivery were factors strongly associated with increasing trends.
Increased on average by 6% every year since 1979, with white women showing a slightly higher increase (7%) than black women (4%) each year.
"Women who already have high blood pressure and are planning to become pregnant should work closely with their healthcare provider to closely monitor and manage their blood pressure, especially during pregnancy, to reduce the serious health risks to both themselves and their unborn child", said researcher Cande V. Ananth, PhD.
Interestingly, the authors also report substantial race-disparity in the prevalence of chronic hypertension. Using data from the National Hospital Discharge Survey, which represents all pregnant women during that time, researchers found that while obesity and smoking are proven risk factors, they had no impact on the increase of hypertension throughout the country during the past four decades. Despite these potential reasons for increased hypertension over time, there are still strong maternal age correlations.
Ananth noted that as the increasing age of pregnant women will probably not change, then women can change various lifestyle factors to help to modify their risk hypertension, which can help prevent possible adverse outcomes in pregnancy.
Chronic high blood pressure was defined as high blood pressure before pregnancy or during the first 20 weeks of gestation.
Dr. Ananth suggests, "Women need to better control their blood pressure before and during pregnancy. Smoking cessation, weight control, behavioral changes and effective anti-hypertensive therapy - all modifiable factors - may lead to healthier lifestyles and will likely have a substantial beneficial effect on chronic hypertension and pregnancy outcomes", Ananth said.
There is a rapid rise in the number of women being diagnosed with hypertension or high blood pressure during pregnancy in the United States, a study has found.
"The findings are important because high blood pressure and cognitive decline are two of the most common conditions associated with aging, and more people are living longer, worldwide", said L.H. Lumey, professor of Epidemiology at Columbia Mailman School and senior author in a press release.