查询词典 randomized

In this study, Dr. Anderson and colleagues analyzed prediagnostic serum samples and patient data from the Carotene and Retinol Efficacy Trial, a randomized chemoprevention trial that evaluated the effects of beta-carotene and retinol on the incidence of lung cancer among individuals at high risk for the disease.

参与Fred Hutchinson癌症研究中心公共健康科学小组的Anderson医师表示，我不知道目前是否有其他生物标记比这些更有效，但是在过去几年间，有许多关於找到可能标记的尝试，不过，并不是每个都有充分研究。

Methods 406 primigravida in labor were randomized to a control trial, 208 of whom received psychological support from including medical staff and family members in a sweet environment accompanied with family members.

将406例经过检查确定能够试产的临产初产妇随机分为支持组(208例)和对照组(198例)。

Methods 406 primigravida in labor were randomized to a control trial, 208 of whom received psychological support from including medical staff and family members in a sweet environment accompanied with family members.

目的 探讨心理支持对临产后初产妇分娩方式的影响方法将406例经过检查确定能够试产的临产初产妇随机分支持组（208例）和对照组（198例）。

In trial 2, according to the similarity of calving date and milk yields, 25 primiparous Holstein cows were divided into five equal groups in a randomized block design with 49 days period. The general diet of dairy farm was fed to cows of control. The alfalfa block 2.7kgd^(-1 was substituted respectively by rice straw block Ⅰ,Ⅱ,Ⅲ or Ⅳ as treatments.

试验2，选取25头初产荷斯坦泌乳母牛采用随机区组设计按产犊日期、产奶量一致原则等分为5组，对照组用奶牛场常规日粮饲喂，试验Ⅰ、Ⅱ、Ⅲ、Ⅳ组分别用稻草块Ⅰ、Ⅱ、Ⅲ、Ⅳ等量替代苜蓿草块，每头替代量为2.7kgd^(-1)，试验期49d。

METHODS Twelve hybrid canines with ARDS were randomized to two groups, and were connected to pumpless extracorporeal lung assist. In group A,the shunt was 25%,20%,15%,10% in turn.In group B,the shunt was 10%,15%,20%,25%. All shunts were continuous for 1 hour. The artery pressure, heart rate and pulmonary artery pressure were recorded in each shunt end before the next shunt beginning.

建立犬ARDS模型，连接pECLA装置，将12只杂种犬随机分为两组，A组采用心排量的25％，20％，15％，10％的分流量顺序进行分流，B组采用心排量的10％，15％，20％，25%的分流量顺序进行分流，各分流量持续1小时，分别记录pECLA模型在模型建成后稳定一小时和各分流量末时的体循环血压，心率，肺循环血压。

Methods:Forty SD female rats undergone selective truncal vagotomy were randomized into four groups:A without additional operation;B with pyloroplasty;C with proximal gastrectomy;D with both proximal gastrectomy and pyloroplasty.GEt1/2 was quantitatively assessed with SPECT technique in preoperation and 1,2,3 weeks postoperatively.

40只大白鼠分成4组，每组均行选择性迷走神经干切断术，A组未另附加其它术式，B组附加幽门成形，C组行近端胃切除，D组行近端胃切除附加幽门成形，术前及术后1、2、3周分别行核素胃排空显像测定GEt1/2。

Dr. Kohan, who is known as a developer of this technique, said in an interview that ropivacaine comes out of the knee in high concentrations and is therefore dangerous to reinfuse. But otherwise he is a strong proponent, and praised Dr. Shore's group for doing this study."We can't do a randomized study anymore, ethically, because the results are so much better for the patients in the injected group," he said.

该项技术的研发者之一Kohan医师表示，由膝盖出来的ropivacaine浓度很高，因此再灌注是很危险的；除此之外，Kohan医师对此技术表示支持，他进一步表示，我们不能再以随机的方式进行试验，因为试验组的效果实在是太好了。

Background— The Doppler Substudy of the randomized, double-blind, placebo-controlled Reinfusion of Enriched Progenitor Cells and Infarct Remodeling in Acute Myocardial Infarction trial aimed to inestigate the effects of intracoronary infusion of bone marrow–deried progenitor cells on coronary blood flow regulation in patients with reperfused acute myocardial infarction.

背景：应用多普勒，采用随机、双盲、安慰剂对照的方法研究输注浓缩祖细胞及梗死区结构的重塑，以明确经冠状动脉输注骨髓祖细胞对急性心梗患者冠状动脉血流恢复的影响。

78 patients with high risk UAP were randomized divided into two groups: emergent PCI groups, 46 patients; non-emergent PCI groups,32 patients; All the patients were performed coronary angiography and percutaneous coronary intervention. The cardiac events(including angina pectoris, acute myocardial infarction, sudden death, reintervention and coronary artery bridge graft) in 30 days, symptom relief rate, symptom relief time, duration of hospitalization and hospitalization expenditure were recorded.

78例高危不稳定性心绞痛患者急诊入院后随机分为两组：急诊介入组46例，非急诊介入组32例，两组均行冠脉造影和介入治疗，对比观察30d内心脏事件（包括心绞痛、急性心肌梗死、猝死、再次介入治疗及冠脉搭桥手术）的发生率、症状缓解率、症状缓解时间和住院时间等。

In this comparative study, 36 patients with urinary incontinence after retropubic radical prostatectomy were randomized to treatment with FES, ExMI, or pelvic floor muscle exercises only.

在此比较性的研究中，30位因接受耻骨后摄护腺根除手术后导致尿失禁的患者被随机分别接受FES、ExMI或只接受骨盆底肌肉训练。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。