Preterm delivery was associated with maternal drug-treated hypertension and impaired renal function. A matched case-control study showed no evidence of increased renal allograft loss after pregnancy.
早产与母亲服药治疗高血压及肾功能损害有关。一项配对病例对照研究发现没有证据表明妊娠会增加移植肾失功发生率。
Methods a 1:1 matched case-control study was conducted 175 patients with gastric cancer and 175 controls were surveyed by questionnaire.
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 case control study with 100 cases of CHD and 100 pair matched controls was conducted with occupational stress factor scales and multivariate analysis.
方法应用职业紧张因素测试表，对100例冠心病患者1∶1配对病例对照进行多因素分析。
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