方法：将符合诊断标准的病例随机分为对照组(102例)和治疗组(156例)。
Methods: (cases) corresponding to diagnosis standards were randomly divided into control group (102 cases) and treatment group (156 cases).
研究设计：为试验一种新的诊断方法而做的预期病例对照研究。
Study Design. Prospectie case-control study testing a new diagnostic method.
目的探讨病例对照家系设计中样本含量的估算方法及影响因素。
Objective Discussing sample size estimation method and effect factors for case control family design.
方法以社区为基础的病例对照研究。
方法来自北京、南京、长春544名性滥者和448名对照进行病例对照研究。
Methods Case control study of 544 high risk persons and 448 controls from Beijing, Nanjing, Changchun.
方法：采用流行病学病例对照设计，通过对875例高血压病患者和654例非高血压病人的问卷调查，并对其进行体质分类。
Method: Designed according to epidemiological case comparison, through a survey of 875 hypertensive patients and 654 non - hypertensive people, and by constitution analysis.
目的提出一种分析病例对照家系资料家庭相关的统计方法。
Objective This paper presents a statistical method of familial correlation on family data from case-control studies.
结果用实例说明了病例对照家系设计中样本含量估计方法的应用与影响因素和样本含量的关系。
Results Actual use of the method for estimating sample size and the relationship between effect factors and sample size were illustrated by a example of case control family study of liver cancer.
目的应用巢式病例对照研究方法，探讨原发性肝癌（HCC）的危险因素。
Purpose To explore the risk factors of hepatocellular carcinoma (HCC) with the aid of nested case control study.
方法采用现况调查和危险因素病例对照研究法进行研究。
Methods Prevalence survey and case-control study on risk factors was conducted.
方法采用病原学、血清学与病例对照和病家对照研究方法，检测标本和收集资料，进行整理分析。
Methods Samples were tested by pathogenic and serologic means before data was collected and analyzed by case-control or family-control studies.
方法采用同胞对和随机病例-对照两种实验设计。
Methods Both sib-pairs and random case-control designs were used.
方法对50例肝纤维化患者和患者住地附近非肝纤维化者作病例对照研究。
Methods By comparing the influential factors in 50 patients with hepatic fibrosis and those without who lived nearby.
方法应用1∶1配对的病例对照研究方法，调查和分析家庭环境中与儿童哮喘有关的暴露因素。
Methods A 1:1 matched case-control study was performed exposure to analyse some exposure factors in home environment that related with asthma.
方法采用病例对照研究和中药治疗组自身前后对照研究。
Methods Case control study and self-control study in Chinese herbal treatment group were conducted.
方法采用病例对照研究的方法，观察2型糖尿病伴胆囊结石组（DG）及不伴胆囊结石组（NDG）各40例。
Methods This is a case control study. 40 type 2 diabetic patients with gallstones(DG)and 40 type 2 diabetic patients without gallstones(NDG)were enrolled.
方法现况调查和病例对照研究。
Methods Cross-sectional study and case-control study were performed.
方法采用回顾性调查研究方法计算麻疹疫苗(MV)效力(VE)，采用病例对照研究进行传播因素分析。
Methods Reviewing investigation was used for the MV coverage rate and immunization efficacy (ve), a case control study was carried for seeking risk factors.
方法：对60例纵隔占位病例的CT诊断与术后病理结果进行对照分析。
Methods The CT diagnosis and pathologic findings from 60 patients with mediastinum space occupying focus were analyzed correlatively.
方法采用流行病学现场调查和病例对照研究。
Methods Epidemiological field survey and case-control study.
方法回顾性分析136例夜间急腹症病例，将超声诊断与手术病理、随防结果进行对照。
Methods: the ultrasonographic images of 136 cases with abdominal emergency at night were analyzed and compared with operation pathology and the follow-up retrospectively.
方法采用1：1病例对照研究方法对合肥市及定远县50对老年性白内障及对照进行问卷调查。
Methods a 1:1 matched case-control study with 50 pairs on risk factors of cataract was carried out in Hefei city and Dingyuan county.
方法采用1：1配对的病例对照研究，对175对病例及对照进行饮食及生活行为问卷调查。
Methods a 1:1 matched case-control study was conducted 175 patients with gastric cancer and 175 controls were surveyed by questionnaire.
方法用病例对照研究方法，选择行白内障手术的患者97例，进行色觉检查及填写统一设计的问卷调查。
Methods The case-control association study and were adopted to examinate color perception before and after intraocular lens implantation and in 97 patients.
目的介绍不完全病例对照研究中基因与环境交互作用的估计方法。
Objective To introduce the approaches for estimating gene-environment interaction based on partial case-control studies.
方法：采用病例随机对照的研究方法。
采用前瞻性病例对照的方法，对38例重症脑出血患者早期肠外营养支持的作用与价值进行研究。
Try to find out the effect and value of early parenteral nutrition (PN) in severe cerebral hemorrhage treatment. Using prospective control method, totally 38 patients were researched.
采用前瞻性病例对照的方法，对38例重症脑出血患者早期肠外营养支持的作用与价值进行研究。
Try to find out the effect and value of early parenteral nutrition (PN) in severe cerebral hemorrhage treatment. Using prospective control method, totally 38 patients were researched.
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