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The usefulness and significance of assessing rapidly progressive spermatozoa 被引量:15
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作者 Lars Bjorndahl 《Asian Journal of Andrology》 SCIE CAS CSCD 2010年第1期33-35,共3页
It is possible and clinically relevant to distinguish between slow and rapid progressive spermatozoa in basic semen analysis. This is discussed in light of the different purposes of semen analysis for the subfertile c... It is possible and clinically relevant to distinguish between slow and rapid progressive spermatozoa in basic semen analysis. This is discussed in light of the different purposes of semen analysis for the subfertile couple and the male patient. The two groups of progressive spermatozoa should be distinguished to help ensure that pertinent information available in the semen sample is not neglected. 展开更多
关键词 male factor infertility manual sperm motility assessment quality control rapidly progressive spermatozoa referencevalues semen analysis staff training
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Adult reference values of the computerized diplopia test 被引量:7
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作者 Ling-Yun Zhou Tie-Juan Liu Xue-Mei Li 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2016年第11期1646-1650,共5页
AIM: To estimate the adult reference values for measured deviations by a computerized diplopia test and testify the validity.METHODS: Totally 391 participants were recruited and taken the computerized diplopia test.... AIM: To estimate the adult reference values for measured deviations by a computerized diplopia test and testify the validity.METHODS: Totally 391 participants were recruited and taken the computerized diplopia test. The plots and amplitude of deviations were recorded. The differences in different gender, age and visual acuity groups were analyzed respectively. Of 30 subjects were enrolled to testify the interobserver reliability. Another 46 subjects(including 26 normal subjects and 20 patients) were taken the test and theirs deviations were recorded to testify the validity of the reference value.RESULTS: The max horizontal and vertical deviations were 2.55° and 0.76° with normal corrected visual acuity while 3.88° and 1.46° for subjects with poor corrected vision. The differences between age groups was insignificant(Z =3.615, 4.758; P =0.461, 0.313 for horizontal and vertical respectively). The max horizontal deviation of female was smaller than male(Z =-2.177; P =0.029),but the difference in max vertical deviation was insignificant(Z =-1.296; P =0.195). The mean difference between observers were both-0.1°, with 95% confidence limits(CI) of-1.4° and 1.6° in max horizontal deviations while-2.1° and 1.8° in max vertical deviation. The mean deviation of 26 normal subjects was 1.02° ±0.84° for horizontal and 0.47° ±0.30° for vertical which both within the range of reference values. The mean deviation of 20 patients was 13.51°±11.69° for horizontal and 8.34°±8.58°for vertical which both beyond the reference range.CONCLUSION: The max amplitude of horizontal and vertical deviation is pointed as the numerical parameters of computerized diplopia test. The reference values are different between normal corrected visual acuity and poor corrected vision. These values may useful for evaluating patients with diplopia in veriety conditions during clinical practice. 展开更多
关键词 computerized diplopia test referencevalues amplitude of deviations
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北京市顺义区学龄前儿童血常规4项指标参考区间及其变化
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作者 王国成 刘雅静 彭亚光 《中华妇幼临床医学杂志(电子版)》 CAS 2023年第2期187-193,共7页
目的探讨近十年北京市顺义区学龄前儿童血常规4项指标参考区间(RI)及其变化。方法选择2012年7月至2022年9月,在北京儿童医院顺义妇儿医院完成人园、人学体检,并每隔3年采集1个年度体检数据,共计21719例学龄前儿童纳人研究。根据体检时间... 目的探讨近十年北京市顺义区学龄前儿童血常规4项指标参考区间(RI)及其变化。方法选择2012年7月至2022年9月,在北京儿童医院顺义妇儿医院完成人园、人学体检,并每隔3年采集1个年度体检数据,共计21719例学龄前儿童纳人研究。根据体检时间,将其分为A组(n=5432,体检时间为2012年7月至2013年9月),B组(n=5441,体检时间为2015年7月至2016年9月),C组(n=5419,体检时间为2018年7月至2019年9月);D组(n=5427,体检时间为2021年7月至2022年9月)4组。采用回顾性分析法,并遵循CLSIEP28-A3c美国标准化委员会RI建立准则,建立4组学龄前儿童白细胞计数(WBC),红细胞计数(RBC),血小板计数(PLT)及血红蛋白(Hb)水平4项血常规主要指标的RI。采用Kruskal-WallisH检验及Mann-WhitneyU检验,对4组学龄前儿童血常规4项指标RI的上、下限进行总体及两两比较。本研究遵循的程序符合2013年修订的《世界医学协会赫尔辛基宣言》。所有学龄前儿童监护人签署临床研究知情同意书。结果D组学龄前儿童WBCRI的上限为10.72×10^(9)/L(10.63×10^(9)/L,10.79×10^(9)/L),分别低于A、B、C组的12.49×10^(9)/L(12.35×10^(9)/L,12.60×^(9)/L),12.77×10^(9)/L(12.62×10^(9)/L,12.90×10^(9)/L),12.41×10^(9)/L(12.33×10^(9)/L,12.58×10^(9)/L),并且差异均有统计学意义(Z=—23.72、32.98、一30.12,均为P<0.001)。D组学龄前儿童RBC与Hb水平的RI下限均分别高于A、B、C组,并且差异均有统计学意义(P<0.05)。4组学龄前儿童WBCRI下限、RBC及Hb水平RI上限比较,以及4组学龄前儿童PLTRI上、下限比较,差异均无统计学意义(P>0.05)。结论轮检验报告的RI可能在不同时间段发生改变,应对其定期评估与更新,以助力于精准诊疗。 展开更多
关键词 白细胞计数 红细胞计数 血小板计数 血红蛋白测定 参考值 儿童 学龄前
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质量系数:一个教学质量评价的相对指标——高三年化学和生物学科教学质量评价实例分析
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作者 潘国全 刘东升 《上海教育评估研究》 2015年第2期65-69,共5页
目前,教学质量评价通常是用不具有可比性的平均分、及格率、优秀率等绝对指标对各班各学科进行分析评价,将学习基础有差异的班级放在相同的标准上进行评价。本文总结了多年的教学经验,在学习国内外有关评价资料的基础上,针对传统教学质... 目前,教学质量评价通常是用不具有可比性的平均分、及格率、优秀率等绝对指标对各班各学科进行分析评价,将学习基础有差异的班级放在相同的标准上进行评价。本文总结了多年的教学经验,在学习国内外有关评价资料的基础上,针对传统教学质量评价指标的弊端,提出教学质量评价的相对指标——质量系数,进行评价分析,剖析实例,得到较满意的、更能反映客观实际的、有针对性的评价方法,为各级教育行政部门和学校了解学生学业质量提供实证依据,为提升教学质量提供诊断和改进建议。从而引导全社会树立正确的质量观以促进学生的健康成长。 展开更多
关键词 教学质量评价 评价指标 质量系数 基准值 比值
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