查询词典 statistically

objective to evaluate the role of mr perfusion weighted imaging in preoperation diagnosis of meningiomas.methods mr perfusion weighted images was performed in 47 patients with meningiomas followed by conventional imaging.results the mean rcbv values of angioblastic was the highest in the parenchyma of tumor.the mean rcbv values of malignant group was the lowest.the biggest mean rcbv values among different type meningiomas was statistically significant.the biggest mean rcbv values between benign and malignant group meningiomas was statistically significant,but not in the peri-tumor edema.conclusion the rcbv values were useful in the preoperative differentiation diagnosis of different types of meningiomas.those in the peri-tumor edema were useless in the preoperative differentiation diagnosis of different types of meningiomas.

目的 探讨磁共振灌注成像技术对脑膜瘤术前分型及良恶性鉴别的临床应用价值。方法对47例脑膜瘤病人行mr灌注成像检查，对5种亚型的良性脑膜瘤的mr灌注成像进行分析，并与非典型性及恶性脑膜瘤进行比较。结果血管瘤型脑膜瘤实质部分的rcbv值均数最高，恶性组脑膜瘤的rcbv值均数最低。各亚型间瘤体实质最大rcbv值均数间差异有统计学意义(p＜0.05)，良恶性脑膜瘤实质部分最大rcbv值均数间差异有统计学意义(p＜0.05)。瘤周水肿区的rcbv值均数间差异无统计学意义(p＞0.05)。结论 rcbv值对脑膜瘤术前分型及良恶性鉴别有所帮助，而瘤周水肿区的rcbv值对脑膜瘤分型及良恶性鉴别未显示临床实用价值。

Paired t-test :12 of 56 items showed statistically significant. Measurements around the nasal regions had only 1 items was statistically significant, and all circumoral items showed no statistical significance.

其中，鼻部只有1项测量项目有统计学差异，而口唇部的所有项目都不能认为两种测量方法有统计学差异。

The increase in either OCDAS or AAS scores associated with provocation was statistically significant (P＜0.01). A statistically significant increase (P＜0.05) in rCBV during the OCD symptomatic state versus the control state was found in the right inferiofrontal cortex, postcentral cortex, angular cortex, and bilateral orbitofrontal cortices, cuneus cortices, heads of caudate neucli, thalami and amygdalae.

结果 静息期和诱发期的强迫症状评分结果分别是1.00±0.33和6.65±0.71，有显著性差异（P＜0.01）；静息期和诱发期的焦虑症状评分结果分别是1.20±0.42和2.75±0.42，也有显著性差异（P＜0.01）；与静息期相比，右侧额下回、中央后回、角回、双侧眶额部、楔叶皮质及双侧尾状核头、丘脑、杏仁核rCBV在症状诱发期显著增加（P＜0.05）。

The mean frequencies of disomic sperms for chromosome 1 and 18 in exposed group(0.088% 0.041%,and 0.087% 0.049%,respectively) were statistically increased over that of the control group(0.045% 0.024%,and 0.053% 0.028%),and the mean frequencies of nullisomic sperms for chromosome 1 and 18(0.11% 0.059%,0.075% 0.035%) in exposed group were statistically increased over that of control group too(0.048% 0.018%;0.045% 0.024%).

结构畸变测定结果：暴露组1号染色体的末端重复率、末端缺失率（分别为0.16% 0.037%，0.14% 0.053%）显著高于对照组数值(分别为0.082% 0.023%，0.069% 0.028%)；暴露组1号染色体着丝粒重复率及着丝粒缺失率(0.10% 0.035%，0.10% 0.041%)显著性高于对照组相应数值(分别为0.075% 0.023%，0.060% 0.029%)。

Postoperative contrast sensitivity testing showed statistically significant differences (P＜0.05)between the two IOLs at 12 and 18 cpd under photopic, at 1.5and 3 cpd under mesopic, and at 1.5 and 3 cpd under mesopic with glare conditions.· CONCLUSION: The Tecnis Z9000 IOL proved to have statistically significant superior contrast sensitivity to the 911AIOL at high spatial frequencies under photopic conditions and at low spatial frequencies under mesopic and mesopic with glare conditions.

术后对比敏感度分析发现两组在12和18 cpd、1.5和3 cpd以及1.5和3 cpd均有统计学差异(P＜0.05)结论：Tecnis Z9000 I0L被证明其对比敏感度在明视高空间频率和暮视低空间频率方面均显著优于911A IOL。

There were no significant differences for the firing rates in the site of contralateral TNC neurons among during pre-CSD,CSD,and post-CSD (P＞0.05).For flunarizine group,the firing rates in the site of ipsilateral TNC neurons during pre-CSD were higher as compared with during CSD(P＜0.05).2.1 There were statistical differences on palasma levels of CGRP and SP among the three groups(P＜0.05).The levels of CGRP and SP in CSD group were higher than control group(P＜0.05).No significant differences on the levels of CGRP and SP in ipsilateral trigeminal ganglia were found among the three groups(P＞0.05).2 The number of neurons with positive CGRP and SP immunoreactivity was statistically different in right-sided trigeminal ganglia among the three groups (P＜0.05).The number in fight-sided trigeminal ganglia in CSD group was higher as compared with control group(P＜0.05).The number in right-sided trigeminal ganglia was statistically higher than that in left-sided trigeminal ganglion in CSD group(P＜0.05).3.1 Altered ReHo in ipsilateral pons and other brain regions response to pain such as basal nuclei,thalamus,cingulated gyms and prefrontal cortex was detected during the acute spontaneous attack as compared with during headache remission(P＜0.05,corrected by Monte Carlo simulation). 2 Positive functional connectivity was detected between ipsilateral pons and other brain regions related to pain within pain state and within non-pain state (P＜0.05,corrected by false discovery rate,FDR).Increased functional correlation between ipsilateral pons and other pain-related brain regions such as ipsilateral prefrontal cortex and contralateral subcallosal gyrus was detected during the acute spontaneous attack as compared with during headache remission(P＜0.05,corrected by Monte Carlo simulation).

结果1。对照组未发现CSD；同侧TNC放电频率，CSD中＞CSD后＞CSD前P＜0.05对侧TNC放电频率，CSD前、中、后无统计学差异(P＞0.05氟桂利嗪组同侧TNC放电频率，CSD前＞CSD中(P＜0.05)，CSD前与CSD后及CSD中与CSD后之间无统计学差异(P＞0.05)。2.1关于放免测定，各组血浆CGRP、SP水平有统计学差异(P＜0.05)，CSD组高于对照组(P＜0.05)，CSD组与氟桂利嗪组、对照组与氟桂利嗪组之间均无统计学差异P＞0.05各组之间同侧三叉神经节中CGRP、SP水平未见变化(P＞0.05.2关于免疫组化研究，右侧三叉神经节CGRP、SP免疫阳性细胞数三组之间有统计学差异(P＜0.05)，多重两两比较结果CSD组大于对照组(P＜0.05)，CSD组与氟桂利嗪组之间、对照组与氟桂利嗪组之间无统计学差异P＞0.05左侧三叉神经节CGRP、SP免疫阳性细胞数三组之间无统计学差异(P＞0.05CSD组中右侧三叉神经节CGRP、SP免疫反应阳性细胞数大于左侧(P＜0.05)。3.1局部一致性分析发现两组患者头痛疼痛状态较非疼痛状态脑活动发生变化的脑区有同侧脑桥以及其他疼痛相关脑区如基底节区、丘脑、扣带回、前额叶皮层等(P＜0.05，蒙特卡罗模拟校正)。2功能连接分析发现疼痛状态与非疼痛状态下主要疼痛相关脑区均与同侧脑桥有功能联系P＜0.05，false discovery rate，FDR校正疼痛状态与非疼痛状态比较，同侧前额叶皮层、对侧胼胝下回等疼痛相关脑区与同侧脑桥之间功能联系增强(P＜0.05，蒙特卡罗模拟校正。

Three-factor Jensen model reveals that 82% of all the funds have positive alphas and half of these alphas are statistically significant. And also, the average of the sample funds' alphas and the alpha of the equal-weighted fund are both positive and statistically significant. These illustrate that the sample funds have excellent performance when size and style factors are considered.(4) The study shows that Chinese funds as a whole do not exhibit excellent skills for stock selection and market timing.

在三因素模型下，有82％的基金的詹森阿尔法大于零，正值詹森指数中的一半具有统计显著性，样本基金詹森指数均值及等权基金的詹森指数均为正值，且具有统计显著性，说明在考虑了规模和价值因素的影响后，样本基金表现优异；（4）对基金选股与择时能力的实证分析表明，中国基金在整体上没有显示出良好的预测市场走势的能力，也未显示出优异的选股能力。

When researchers looked at male predominance in stroke among preteens vs teens, they did not find a statistically significant difference. However, said Dr. Golomb, the study may have been underpowered to detect a true statistically significant male predominance in this age group.

当研究者针对青少年前期与青少年时，男性中风比例是否偏高时，他们并未发现统计上显著差异；然而，Golomb医师表示，这项研究可能没有足够的统计力量来侦测在该年龄层男性中风比例是否较高的差异。

Result: The amplitudes of quantitative patellar tendon reflex and maximal volitional contraction of involved limbs were statistically lower than those of uninvolved ones. The decreasing extent of amplitude of quantitative patellar tendon reflex was statistically lower than that of maximal volitional contraction of quadriceps.

结果：患膝股四头肌的最大等长收缩和定量髌腱反射波幅均显著低于健侧，而髌腱反射肌电波幅的减低程度则显著地大于股四头肌最大等长收缩肌电波幅的减低程度。

Methods Two hundred and ninety seven middle-aged and aged females were sampled randomly from the cases who were examined in the bone mineral density measurement department of The Second Affiliated Hospital of Nanchang University from January 2004 to January 2006, and their age, stature and body weight were recorded exactly. The BMD of lumbar (L2~4), femoral neck, Ward's and great trochanter was measured by dual energy X-ray absorptiometer, then statistically analyzed.

从2004年1月～2006年1月在南昌大学第二附属医院骨密度测定室检测的就诊者中随机抽取297例中老年妇女，准确记录其年龄、身高、体重；采用法国DMS公司Challenge：双能X线骨密度测定仪检测腰椎(L2~4)、股骨颈、ward's三角以及大转子的BMD，然后进行比较和统计分析。

The French are not suggesting a new EU treaty, but they have plenty of other wheezes.

法国人并不是在建议签署一个新的欧盟条约，但他们有许多其他的阴谋。

This letter was written by my brother.

这封信是我弟弟写的。