方法以社区为基础的病例对照研究。
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：采用成组病例对照研究。
方法采取1：M匹配的病例对照研究。
本文进行了一项队列内病例对照研究。
神经管畸形；病例对照研究；危险因素。
电磁场暴露与痴呆：基于人群的病例对照研究。
Relationship between electromagnetic field exposure and dementia: a population-based case-control study.
病例对照研究胃癌和营养因素，在马赛，法国。
A Case-control Study of Gastric Cancer and Nutritional Factors in Marseille, France.
设计：足底压力测量系统设计及病例对照研究。
Design: Design of measuring system for plantar pressure and a case controlled trial.
方法采用临床流行病学病例对照研究方法进行研究。
Method This study was underwent with the clinical case-control study of the Epidemiology.
唇腭裂；出生缺陷；病例对照研究；环境危险因素。
Birth Defects; Orofacial clefts; Casecontrol Study; Environmental risk factors.
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.
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.
对部分慢性支气管炎急性发作期及迁延期的病人进行病例对照研究；
The case control studies on parts of patients in acute attack and delayed peroids of chronic bronchitis were carried out.
最新研究显示这些早期的研究由于用到病例对照研究，结果已经有偏倚。
But it appears that some of these early investigations may have been biased by the use of "case-control" studies.
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.
这种类型的研究被称为病例对照研究，它不能够证明两者之间的因果关系。
This type of study design, known as "case-control," cannot prove cause-and-effect.
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.
对903名中老年人群进行高脂血症的现况调查和危险因素的病例对照研究。
The prevalence survey of hyperlipidemia and its case control study on risk factors were carried out in 903 middle or old person.
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.
现有的研究包括29个队列研究，69个病例对照研究以及4个随机临床试验。
Of the available studies, 29 were cohort studies, 69 case-control studies, and 4 randomized clinical trials.
这一结论不只是基于一些世代研究或病例对照研究，而是基于无数随机对照试验。
This isn't a conclusion based simply on some cohort or case-control studies. There are many, many randomized controlled trials.
这一类型的研究持续了10到15年，结果表明，通过病例对照研究而得出的结论站不住脚。
Those types of studies have been coming out in the last 10-15 years and have not supported the original findings [from case-control groups].
采用以医院为基础的配比病例对照研究方法，探讨了吸烟、饮酒及高血压与脑出血的关系。
A matched case-control study on the relationships between cigarette smoking, alcohol drinking, hypertension and cerebral hemorrhage was conducted.
同时一些观察性研究，如队列研究、病例对照研究和历史对照研究等纳入用于敏感性分析。
Observational studies such as cohort studies, cased-control studies, and historical controlled studies will be used for sensitivity analysis.
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.
应用推荐