卡方

The 2 test and Student t test were used to compare dichotomous and continuous variables, respectively.

分别用卡方检验和T检验比较两分法变量与连续变量。

Methods 96 cases were devied into early stage group (60 cases, within three weeks )and later period group(36 cases, over three weeks).In early stage group, the time and degree of enophthalmos were observed. In later period group, the orbital volume behind the axis of the globe and degree of the enophthalmos were measured. The relation between the changes of orbital volume behind the axis of the globe and the degree of the enophthalmos was assessed by using Pearson correlation coefficients.

将96例患者按发病时间分为早期病例组（60例、受伤时间1周以内）和晚期病例组（36例、受伤时间3个月以上），早期组除进行后部眼眶容积测量外，分别于1周、2周、3周测定眼球突出度（相差＞1mm为阳性），记录眼球内陷出现时间，用卡方检验进行统计学分析；晚期组测量后部眶容积增大值和眼球内陷量，对其相关性采用Pearson统计方法进行统计学分析，并得出回归方程及相关系数。

Patients in treatment group were treated with ultrasound-guided drainage, followed by intrapleural injection of 125, 000 IU urokinase （diluted by 50 ml normal saline）, including 14 patients with pleural thickness〉 5 mm.

治疗组40例分为A，B两组，给予胸腔穿刺抽液引流并胸腔内注射尿激酶治疗，其中胸膜增厚〉5mm 14例为B组；对照组36例分为C，D两组，给予反复胸腔穿刺抽水治疗，其中胸膜增厚〉5mm 13例为D组；治疗组和对照组患者其他临床资料无差别，具有可比性；注药24h后抽液，B超定点测定首次注药前后的抽液量、胸膜厚度、纤维素分隔积分，差值结果作单因素卡方检验。

The results from statistic data analysis using the statistic software SPSS15.0 for descriptive statistics, chi-square evaluation, laddered logistic regression, factors analysis, credibility analysis, variables analysis, and multiple comparison are as follows

利用统计软体SPSS15.0进行描述性统计、卡方检定、阶层式逻辑斯回归、因素分析、信度分析、变异数分析、多重比较等统计方法分析，根据统计资料分析结果

I. An analysis of the prominently related variables with whether or not to receive cervical smear screen of tendency factors, enabling factors and needs factors by using the logistic regression model was performed.: 6 variables of tendency factors with predictive value as to whether a woman receive cervical smear screen or not include age, marital status, educational level, family structure, religion, and the knowledge of free smear examination offered by mandatory citizen health insurance; 4 variables with enabling factors with predictive value include average monthly income, district, whether receiving telephone or letter notices in the past year, and the degree of convenience of the examination location. One variable of needs factors with predictive value: is the suitability of the examination time notified. The accuracy rate of laddered logistic regression model built by this research was 74.1%.

经卡方检定后，将倾向、能用、需要因素中具有显著相关变项与是否接受抹片检查，放入逻辑斯回归预测模型中，本研究结果发现：倾向因素中的六个变项：年龄、婚姻状况、教育程度、家庭结构、宗教信仰、是否知道健保提供免费抹片检查对受检与否具有预测力；能用因素中的四个变项：平均月收入、地区别、过去一年内是否接到电话或信函通知、收到通知的受检地点是否方便对受检与否具有预测力；需要因素中的一个变项：收到通知的受检时间是否合适对受检与否具有预测力；本研究所建立的阶层逻辑斯回归模型的整体预测正确率为74.1﹪。

Due to the violation of the PA condition, the distributions of Wald statistics and Score statistics based on GLS estimators are noncentral $\chi^{2}$ distributions. The efficiency of testing based on the GEE method is largely influenced.

由于PA条件不成立，回归系数的GLS估计不再是渐近无偏的，构造的Wald和Score统计量的分布不再是中心卡方分布，从而对于检验的效率也产生了严重影响。

Due to the violation of the PA condition, the distributions of Wald statistics and Score statistics based on GLS estimators are noncentral x~2 distributions. The efficiency of test based on the GEE mothod is infulenced.

由于PA条件不成立，回归系数的GLS估计不再是渐近无偏的，从而得到的Wald和Score统计量的分布不再是中心卡方分布拉，从而对于检验的效率也产生了一定的影响。

No statistical difference in EGFR expression between each layer of cholesteatoma and postauricular skin was noted.

利用卡方检定 EGFR 阳性细胞於各层之表现比率，两组间并无统计学上的差异。

Using the questionnaire made by myself, this study surveys and analyzes the actuality and demand of partial secondary school chemistry teachers in Chongqong, and then uses SPSS11.0 to analysis the redemptory questionnaire.

本文采取自编的《重庆市中学化学教师专业发展现状调查问卷》，对重庆市部分在职中学化学教师进行了问卷调查。然后用SPSS11.0统计软件对回收问卷进行统计分析，重点分析了频率、百分率和差异显著性检验(x2卡方检验)。

The results show that Chi-square test can reveal not only the swarming feature of earthquakes before medium and strong earthquakes,but also close relation between strong earthquakes and seismotectonic background.

认为，卡方检验不仅揭示了中强震前地震的丛集特性，而且体现了强震与地震地质背景之间的密切关系，揭示了构造体系与地震的某些联系。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。