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心血管疾病的死亡率,在过去的50～60年中,已经下降了约50%。然而,心血管疾病的患病率仍然很高,在美国,心血管相关死亡仍然位居首位。据估计,预防方面作出的努力,已促使心血管死亡率降低了至少一半;具体而言,主要改善的因素包括:平均胆固醇水平、平均血压水平和烟草使用率,都有所下降。遗憾的是,在过去10年中,肥胖和糖尿病的发病率不断增加,很大一部分抵消了本来下降的心血管死亡率。
Cardiovascular death rates have dropped about 50% in the past 50-60 years. However, the prevalence of cardiovascular disease is still high, with cardiovascular-related deaths still tops in the United States. It is estimated that prevention efforts have resulted in a reduction in cardiovascular deaths of at least 50%; in particular, major improvements include a decrease in mean cholesterol levels, mean blood pressure levels and tobacco use rates. Unfortunately, the incidence of obesity and diabetes has increased over the past 10 years, largely offsetting the cardiovascular mortality that would have been declining.