Hypertension prevalence according to geographic areas, sex, city size and study years.

Abbreviation: N, total number of subjects from the included studies.
abefore the pooled prevalence was estimated, all raw prevalence data was age adjusted to the 2010 China standard population.

缩写说明：N 代表纳入研究的总受试者人数。在进行合并患病率估算之前，所有原始患病率数据均已依据2010年中国标准人口完成年龄标化。