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循证医学.
急性呼吸窘迫综合症男性患者
阿司匹林
安慰剂
有效症状改善
检索的一篇论文
题目:Effect of Aspirin on Development of ARDS in At-Risk Patients Presenting to the Emergency Department: The LIPS-A Randomized Clinical Trial.
阿司匹林对急性呼吸窘迫综合症的发展在风险患者的急救部门的LIPS-A 随机临床试验
一、治疗性研究证据真实性评价
Are the results valid?
1. 研究对象是否进行随机化(randomization)分组?
由论文题目明确说明是随机化临床试验
Randomization and Blinding
Eligible participants were centrally randomized in a 1:1 ratio to the aspirin or placebo treatment group using Medidata Balance. Dynamic minimization with a second guess probability of was used to randomly allocate treatment assignments while stratifying by The study participant, clinical team, and all members of the study team were blinded to treatment :1的比例使用阿司匹林或安慰剂治疗组的Medidata的平衡。,临床团队和研究团队的所有成员都不知道治疗分配。
一、治疗性研究证据真实性评价
Are the results valid?
2. 分配方案是否进行了隐藏?
论文中说明:参与者集中按照1:1比例使用阿司匹林或安慰剂治疗组的Medidata的平衡。研究参与者,临床团队和研究团队的所有成员都不知道治疗分配。
一、治疗性研究证据真实性评价
Are the results valid?
3. 试验开始时试验组与对照组的基线可比性如何?
Baseline demographics and clinical characteristics, according to treatment allocation, are presented in Table1. Randomization procedures were effective at equalizing distributions of baseline variables. The median (interquartile range [IQR]) time from hospital presentation to randomization was (-) hours. The median age was 57 (45-68) years and 52% (203/390) were male. Baseline lung injury prediction scores (LIPS) were not significantly different between groups, with a median (IQR) LIPS of (-) in the aspirin group and (-) in the placebo group. Major risk factors for ARDS were similarly distributed in both treatment groups.
Table 1. Demographics and Baseline Characteristics of the 390 Participants Included in the Modified Intention-to-Treat Analysis Set(390名参与者的人口统计和基线特征,包括在修改后的意向治疗分析集)
在阿司匹林组和慰剂组 年龄 性别 肺损伤的预测评分组间均无显著性差异具有基线可比性。
一、治疗性研究证据真实性评价
Are the results valid?
4. 研究对象的随访是否完整?随访时间是否足够?
400例中阿司匹林组N=7,对照组N。%失访率
随访时间是2012年1月2日至2014年11月17日
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