目的：痛经的发病率逐年增高，重新分析痛经患者的临床因素，提出新的认识。
Objective:The incidence of dysmenorrhea was increased year after year, the new cognition was put forward by the analysis of clinical factors in dysmenorrhea patients.
动脉粥样硬化是一种慢性疾病，其病因复杂，病变发展缓慢，且发病率逐年增高。
Atherosclerosis (as) is a kind of chronic disease. It has a complicated causes, slow proceeding of pathological changes, and increasing case fatality.
随着现代社会生活节奏加快，工作方式改变，颈椎病的发病率逐年增高，且越来越年轻化。
As the rhythm of modern life speeds up and life mode changes, the attack rate of Cervical Spondylosis grows up year after year and the trend of Cervical Spondylosis patients 'age is younger.
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