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为了测定结肠血管发育不良与主动脉狭窄之间的关系,作者用联机检索收集到5篇有关文献。这些文章研究了主动脉狭窄(AS)与特发性胃肠道出血(IGIB)之间的关系。作者对资料较全的4篇文章作了数量上和方法学上的评价,数量上的分析包括机会比率(odds-ratio,OR)和95%可信限(confidence limits,CL)的测定。当以AS 作为结局,分析“暴露因子”IGIB 对于病例组(AS 患者)与对照组(无AS)的作用时,仅1篇文章显示出AS 与IGIB 密切相关(OR=23,95%CL3.19～166.2),其余3篇文章的计算结果显示两者在统计学上无明显相关。但是当以胃肠道出血(GIB)作为
In order to determine the relationship between aortic dysplasia and aortic stenosis, the authors collected 5 articles from the online search. These articles examined the relationship between aortic stenosis (AS) and idiopathic gastrointestinal bleeding (IGIB). The authors quantitatively and methodologically evaluated 4 well-documented articles that included quantitative odds-ratio (OR) and 95% confidence limits (CL). When AS was used as the outcome to analyze the role of “exposure factor” IGIB in the case group (AS patients) versus the control group (no AS), only 1 article showed that AS was closely associated with IGIB (OR = 23,95% CL3. 19 ~ 166.2). The results of the other three articles showed that there was no statistically significant correlation between them. But when it comes to gastrointestinal bleeding (GIB)