百分位数

The median age was 61 years (25th and 75th percentiles, 56 and 68 years), and 80% of patients were male.

年龄中位数为61岁（第25和第75百分位数， 56及68岁），和80 ％的患者都是男性。

Their heights were around four standard deviations below the 50th percentile of the normal growth curve.

他们的身高大约比正常生长曲线的第50个百分位数低4个标差准。

What is meant by the term percentile?

百分位数这个词的含义是什么？

Top 25% are at or above the 75th percentile.

最高的25%在75百分位数或以上。

Methods According to the oestradiol level on progesterone initiation day, 279 hormone replacement-frozen embryo transfer cycles were grouped into three groups (group 1, percentile 0-25th; group 2, percentile 26th-75th; group 3, percentile 76th-100th).

按照激素替代-冻融胚胎移植患者黄体酮开始注射日血清雌二醇质量浓度的百分位数，将279个周期进行分组（组1百分位数为0～25，组2为26～75，组3为76～100）。

Methods According to the oestradiol level on progesterone initiation day, 279 hormone replacement-frozen embryo transfer cycles were grouped into three groups group 1, percentile 0-25(superscript th; group 2, percentile 26-75; group 3, percentile 76-100.

按照激素替代－冻融胚胎移植患者黄体酮开始注射日血清雌二醇质量浓度的百分位数，将279个周期进行分组（组1百分位数为0~25，组2为26~75，组3为76~100）。

In recent years, LMS technique outstands in mushrooming methods about fitting percentile curves, which had been widely used to establish normal references in many countries and areas worldwide, mainly on indicators as height, weight and BMI.

近些年关于拟合百分位数曲线标准的文献层出不穷，偏度均值变异系数法技术可谓一枝独秀，目前广泛用于许多国家及地区的生长发育百分位数标准曲线制订，主要应用于儿少身高、体重及BMI领域。

Calculates Percentile Value statistics and the median under the assumption that your data have been grouped, and the values in the data are the midpoints of the original groups.

以下是我对这段英文的理解，不知道正确不正确，还望各位老师赐教：在你的数据已经被分组并且数据中的值是原始组的组中值的条件下，计算百分位数和中位数。

Reveal the characteristics and regular pattern of its epidemic.①Investigated the epidemiological history of 448 clinical confirmed SARS cases, drawing the map of coming places of primary cases and whereabouts of the secondary cases, clarify the reasons of SARS inputting and spreading.②Exploring transmission relationship between cases by drawing the chain-map and learning the main transmission process.③Selecting the chain-cases with the exact onset and contact time to calculating the average incubation of same generation cases on different transmission chains and the average incubation of different generation cases on same transmission chain, Calculating the incubation median, the fifth percentile and the ninety-fifth percentile of the incubation of the observed cases.④Analyzing the timeliness of admission and the treating condition through the statistical calculation of the onset time, the admission time, the hospitalization time as well as the diagnostic time of the suspect and clinical confirmed cases.

调查全省448例SARS临床确诊病例的流行病学史，绘制全省输入SARS原代病例的主要来源以及引起传播后被感染者的去向图，阐明SARS病例的输入与扩散原因；②用传播链图分析传播关系，了解SARS的主要传播过程；③选择SARS原代病例与续发病例接触日期、发病日期明确而完整的传播链病例计算不同传播链同一代之间以及同一传播链不同代之间的平均潜伏期，并计算观察病例潜伏期的中位数以及第5、第95百分位数，确定SARS的最短潜伏期和最长潜伏期；④对患者发病、就诊、住院时间以及医院诊断为SARS可疑病例、临床确诊病例的时间进行统计，分析SARS就诊的及时性以及临床诊治情况；⑤计算不同接触方式、关系密切程度传播SARS的危险度，筛选形成传播的主要危险因素；⑥检测不同人群和同一人群不同时间的SARS血清抗体，了解抗体的阳转时间和持续时间。

Possible value of $1 invested 12/31/99 for 45 years at the 5th and 95th percentiles is $64 and $1,526, respectively.

假使在1999年12月 31日投资$1，45年终值的分配，第五百分位数为$64，第九十五百分位数为$1，526

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了