图 书 馆
当前持续时间（向后复发时间）估计怀孕时间的方法The current duration (backward recurrence time) approach to estimating time to pregnancy |
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| 课程网址: | http://videolectures.net/as2011_keiding_pregnancy/ |
| 主讲教师: | Niels Keiding |
| 开课单位: | 哥本哈根大学 |
| 开课时间: | 2011-10-24 |
| 课程语种: | 英语 |
| 中文简介: |  描述 怀孕时间是一对夫妇从开始尝试怀孕到成功的持续时间，被认为是衡量人类自然生殖力的最直接方法之一。用于设计和分析妊娠时间研究的统计工具属于生存分析的一般领域，但其中一些功能需要特别注意。前瞻性设计很难执行，而回顾性（基于怀孕）设计在该领域得到了广泛使用，因此不允许有效地包括尚无子女的夫妇。第三种可能的设计从当前试图怀孕的夫妇的横截面样本开始，使用当前持续时间（向后复发时间）作为估计到怀孕/结束怀孕时间的基础，然后在模型中最方便地进行回归分析。加速故障时间模型。本文在大型电话调查（法国观察站）中调查了在实践中采用这种方法的一些实际和技术统计问题。 |
| 课程简介: | Description Time to pregnancy is the duration from a couple starts trying to become pregnant until they succeed and is considered one of the most direct methods to measure natural fecundity in humans. Statistical tools for designing and analysing time to pregnancy studies belong to the general area of survival analysis, but several features require special attention. Prospective designs are difficult to carry out and retrospective (pregnancy-based) designs, being widely used in this area, do not allow efficiently including couples remaining childless. A third possible design starts from a cross-sectional sample of couples currently trying to become pregnant, using current duration (backward recurrence time) as basis for the estimation of time to pregnancy/end of pregnancy attempt Regression analysis is then most conveniently carried out in the accelerated failure time model. This paper surveys some practical and technical-statistical issues in implementing this approach in practice in a large telephone-based survey, the Observatoire de la fertilité en France (OBSEFF). |
| 关 键 词: | 回顾性设计; 时间模型 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2020-09-27：zkj |
| 最后编审: | 2020-10-22：zyk |
| 阅读次数: | 54 |