女人怀孕前的体重如何影响分娩.docx

?每一个案例讲的大致内容是啥，要带着问题和目标去调研，比如说： 1. ?当前案例主要讲什么类型的数据分析？ 2. ?当前案例的分析目标是什么？如何确定的分析目标？ 3. 当前案例的分析对象数据时哪些？这些数据是如何获取和收集的。 4. 当前案例的分析过程以及分析模型是什么样子的？为何选择当前的分析模型？ 对数据进行了怎样的处理 5. 分析结论是什么？ 6. 从这个案例我们可以得到什么启示？ a. ?若给定分析目标，我们如何确定和收集为达到分析目标所需要的数据？ b. ?若没有给定分析目标，只给了一批数据，如何基于这些数据确定分析目标和分析方法 HYPERLINK /tag/complications/ Complications 9:53 AM Jul 10, 2014 HYPERLINK /features/how-a-womans-weight-before-pregnancy-affects-childbirth/ How a Woman’s Weight Before Pregnancy Affects Childbirth By HYPERLINK /contributors/emily-oster/ \o Posts by Emily Oster Emily Oster Earlier this year, The Journal of the American Medical Association (JAMA) published HYPERLINK /article.aspx?articleid= \t _blank a study on how?women’s weight before getting pregnant?affects?their pregnancies. The paper argued that excess weight during pregnancy was associated with large increases in miscarriage and stillbirth. The fact that obesity raises?many pregnancy risks — including fetal death — is generally well known. What made this paper striking, however, was?that it suggested that the risks increase at much lower weights than previously thought: Based on the authors’ conclusions, you’re better off being underweight than normal weight before getting pregnant. I was surprised by this finding in part because I spent a bunch of time looking into these risks while working on my book, “Expecting Better.”?Based on the evidence I reviewed, I found there were?good reasons to try to get within?a normal weight range before?getting pregnant; but if you’re already there, losing another five or 10 pounds isn’t going to matter. The data in the JAMA article suggests something different. In the authors’ main table, they report the absolute risk of stillbirth per 10,000 pregnancies by a woman’s pre-pregnancy body mass index (BMI). We’ve replicated their results in the chart?below: It may be a bit easier to think in weight rather than BMI. Consider a woman who is 5’6” and 155 pounds, which puts her BMI just below 25. What thi