We used cross-sectional data from random urban population samples of 7559 men and 7471 women aged 45-69 years, and not taking antihypertensive medication, from Russia, Poland and Czech Republic.
从俄罗斯、波兰和捷克共和国公民的横断面数据中随机抽取年龄在45-69岁的7559名男性及7471女性,入选者皆不使用抗高血压药物。