慢性肾脏病(chronic kidney disease,CKD)是一组严重威胁人类生命和健康并消耗巨额卫生资源的常见慢性进展性疾病,具有高患病率、高死亡率、高医疗卫生支出等特点,已成为全球关注的重要公共卫生问题。在中国等非发达国家,CKD患病率约为10.8%(10.2%~11.3%),患病人数可达1.20亿(1.13亿~1.25亿)人[1]。随着肾功能的恶化,合并高血压患者人 Chronic kidney disease (CKD) is a group of common chronic progressive diseases that threaten human life and health and consume huge amounts of health resources. It has the characteristics of high prevalence, high mortality and high health care expenditure. It has become Important public health issues of global concern. In non-developed countries such as China, the prevalence of CKD is about 10.8% (10.2% ~ 11.3%) and the number of patients with disease is up to 120 million (113 million ~ 125 million) [1]. With the deterioration of renal function, patients with hypertension