prevalence 是什么意思

音标：[ 'prevələns ]

中文翻译与英英解释

	n. 1.流行，盛行，普遍。 2.〔罕用语〕优势，卓越。

	the quality of prevailing generally; being widespread; "he was surprised by the prevalence of optimism about the future"
	a superiority in numbers or amount; "a preponderance of evidence against the defendant" 同义词：preponderance,
	(epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the population

In epidemiology, the prevalence or prevalence proportion is the proportion of a population found to have a condition (typically a disease or a risk factor such as smoking or seat-belt use). It is arrived at by comparing the number of people found to have the condition with the total number of people studied, and is usually expressed as a fraction, as a percentage or as the number of cases per 10,000 or 100,000 people.

例句与用法

	1.	It has to do with the prevalence and features of a disease in a population . 它研究人群中疾病的流行和特征。
	2.	Farm tenancy, especially sharecropping, was so common in the south that its prevalence in that region evoked little comment . 农场租佃，特别是分成制在南部是如此普遍，以致它在当地的盛行几乎未引起批评。
	3.	Study on diabetes prevalence in urban china 2002年中国城市居民糖尿病流行状况分析
	4.	Reasons for prevalence of cao tang shi yu in ming dynasty 在明代的盛行及其原因
	5.	Study of hospital nursing during influenza prevalence 流感流行时医院护理工作探讨
	6.	Of the prevalence of one choice over another 了各种选择的流行程度（ prevalence ）。
	7.	Prevalence survey of commonly pathogenic bacteria in clinic 临床常见致病菌现状分析
	8.	Distinction of the prevalence of styled names in the song dynasty 宋人称字之风辨疑
	9.	Prevalence of hydatidosis in heilongjiang province 黑龙江省棘球蚴病流行概况
	10.	Prevalence of adult cigarette smoking drops to 24 percent 成人吸烟患病率下降至24 %

prevalence是什么意思

prevalence 是什么意思

中文翻译与英英解释

例句与用法