By how much does the risk of death from heart disease double with every increase of 20/10 mm/hg in blood pressure?

The correct choice illustrates a well-established relationship in cardiovascular health, specifically regarding blood pressure and the risk of heart disease. Research has shown that for every increase of 20 mmHg in systolic blood pressure or 10 mmHg in diastolic blood pressure, the risk of cardiovascular mortality, including deaths from heart disease, effectively doubles. This principle is grounded in epidemiological studies that quantify how changes in blood pressure directly correlate with increased risk of adverse cardiovascular events.

The other options represent different increments that do not align with the established findings related to the doubling of risk associated with blood pressure. Only the 20/10 mmHg increase is backed by solid evidence in medical literature, which demonstrates a clear and direct relationship between blood pressure levels and heart disease risk. Thus, the answer accurately captures a crucial aspect of cardiovascular risk management.