这种可能引起安慰剂效应的“无效治疗”经常被作为对照组应用于临床试验，科学家依此判断被测药物的额外作用。
Dummy treatments that might elicit the placebo effect are often used in clinical trials as a comparison group to allow scientists to measure the additional effects of experimental medicines.
设立常规药物治疗作为对照组。
一组不经治疗作为对照组。
方法：对50例患者以养血通经方随症加减治疗，并与27例西药治疗作为对照组。
Methods: 50 cases were treated by modified YTF accordingly and 27 cases by western medicine as control.
将皮下缝合前用碘伏冲洗切口的30例手术患者作为治疗组； 随机抽取30例使用酒精常规消毒的患者作为对照组。
Before suture the 30 patients in the treatment group were washed with iodophor, while the 30 random selected patients in the control group were given routine alcohol sterilization.
方法：选用市售阿昔洛韦眼膏作为对照组，阿昔洛韦眼用凝胶剂为实验组，比较两者治疗实验性家兔单纯疱疹性角膜炎的药效差异。
METHODS The aciclovir eye ointment was used as control group, and the gel as test group, the drug action on treatment of experimental rabbits herpes simplex keratitis (HSK) was compared.
总结复位手法治疗反弓型颈椎病，把用颈椎牵引后进行一般按摩治疗90例作为对照组，与加用该手法治疗120例进行比较。
The dorsad reduction maneuver has been used for treating 120 cases of posticous cervical spondylopathy and 90 cases treated with common massage has been used as control.
而5名无osa患者作为对照组不进行CPAP治疗，但同样于6周进行再次评估。
The five patients without OSA who served as controls did not undergo CPAP but were also re-evaluated at 6 weeks.
第3组是不治疗作为对照组。
结论：关节冲洗术结合透明质酸钠关节内注射治疗组的疗效明显优于单纯透明质酸钠关节内注射治疗的对照组，可作为治疗膝关节炎的一种有效的方法。
Conclusion the results of active arm was better than control arm. Joint irrigation accompany with the sodium hyaluronate joint injection is an effective agent for treatment of gonarthritis.
方法以电针、中药熏疗及脊柱牵引综合治疗作为治疗组，与单纯牵引的对照组作疗效比较。
Methods The patients in treatment group were applied with comprehensive therapies of electro acupuncture, Chinese herbal steaming and traction, and those in control group with single traction therapy.
另选羊水清的44例孕妇作为实验研究的空白对照组(C组)，该组孕妇未经过羊水置换及吸氧等一般治疗。
Another 44 delivery women with clear amniotic fluid were also chosen as control group (group c), which obtained no any treatment.
结论关节冲洗术结合透明质酸钠关节内注射治疗的组，其疗效明显优于单纯的透明质酸钠关节内注射治疗的对照组，是作为治疗膝关节炎的一种有效的方法。
Conclusion: the results of active arm was better than control arm. Joint irrigation accompany with the Sodium Hyaluronate joint injection is an effective agent for treatment of gonarthritis.
方法采用UBI治疗老年血管性痴呆30例，同时以脑复康治疗27例作为对照组。
Methods 30 patients which treated with UBI were randomly divided into treated group, and 27 patients which were treated with Piracetam into control group.
以用中药周期方法治疗冲任失调型黄褐斑作为治疗组，以服用西药氨甲环酸作为对照组。
With Chinese medicine cycle therapy was as disharmony of thoroughfare and conception vessels chloasma as treatment group, to take tranexamic acid as control group.
方法：用金葡液局部注射治疗四肢创伤引起皮肤缺损25例，常规换药作为对照组治疗20例。
METHODS:The study was conducted in 25 patients with skin injuries caused by limb damage. They were treated with staphylococcin aureus injection in comparison with control.
从治疗前后内镜和活检病理组织学变化作为疗效判断标准。无论症状、体征和组织学检查结果治疗组均较对照组有改善。
The changes of endoscopic and histopathological examinations before and after treatment were taken as the criteria for the evaluation of the effects.
方法：随机选择62例患儿分两组进行分析比较，即：30例采用烧伤湿性医疗技术治疗者作为治疗组（A组） ，32例采用传统烧伤“干燥疗法”治疗者为对照组（B组） ，观察两组治疗效果。
Methods:62 burn children were divided randomly into 2 groups. 30 cases in MEBT group and 32 cases in SD-Ag group. The efficacy of the two groups was compared.
方法：选择在本院住院治疗的妊娠期糖尿病及糖耐量受损的病人66例为实验组，其中GDM组35例IGT组31例，另选38例门诊正常孕妇作为对照组，各组间一般资料差异无显著性。
Methods:66 cases in the hospital were selected as control group, 35 cases in GDM group and 31cases in IGT group. 38 cases of normal pregnancy as contrast group.
方法：选择在本院住院治疗的妊娠期糖尿病及糖耐量受损的病人66例为实验组，其中GDM组35例IGT组31例，另选38例门诊正常孕妇作为对照组，各组间一般资料差异无显著性。
Methods:66 cases in the hospital were selected as control group, 35 cases in GDM group and 31cases in IGT group. 38 cases of normal pregnancy as contrast group.
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