Longitudinal data is referred to data in which individuals are measured repeatedly through time, so it combines elements of cross-sectional data and time-series data.
纵向数据是指对每个个体在不同时间进行观测而得到的由截面和时间序列融合在一起的数据。
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。
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。
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