Dynamic Measures of Pregnancy Intentions and Subsequent Pregnancy

描述(由申请人提供)：更好地了解怀孕愿望对于减少意外怀孕至关重要。目前最先进的怀孕愿望的概念化和测量受到严重的限制，极大地削弱了我们理解怀孕愿望和随后怀孕之间联系的过程的能力。拟议的项目至少包括三项重大创新：(1)对怀孕愿望的13项详细和细微差别的衡量；(2)对观察期内所有关系(包括短期和/或不稳定的关系)中伴侣怀孕愿望的看法的衡量；(3)对怀孕愿望所有方面的每周衡量，代表这些愿望的动态。我们建议通过四个具体的目标来改善怀孕愿望的概念化、测量和理解：1.调查怀孕愿望的测量属性2.分析伴侣对怀孕愿望的感知的作用3.描述和预测怀孕愿望的动态4.估计动态怀孕愿望对后续怀孕的影响我们建议使用来自关系动态和社会生活(RDSL)研究的独特数据集。RDSL首先对1003名18岁和19岁的女性进行了面对面的基线调查。在接下来的两年半里，这些女性每周提供关于她们怀孕愿望的最新信息，以及关于怀孕经历、关系、避孕用法和相关态度的最新信息。在2012年2月结束的为期两年半的研究期间，这些年轻女性报告了233例怀孕。这里提出的分析不是最初RDSL提案的一部分。

DESCRIPTION (provided by applicant): A better understanding of pregnancy desires is critical for reducing unintended pregnancy. Current state-of- the-art conceptualization and measurement of pregnancy desires suffer from serious limitations that dramatically undermine our ability to understand the processes that link pregnancy desires and subsequent pregnancy. The proposed project includes at least three major innovations: (1) thirteen detailed and nuanced measures of pregnancy desire; (2) measures of perceptions of partners' pregnancy desires across all relationships in the period of observation (including short-lived and/or unstable relationships); (3) weekly measures of all aspects of pregnancy desire, representing the dynamics in these desires. We propose to improve conceptualization, measurement, and understanding of pregnancy desires via four specific aims: 1. Investigate the Measurement Properties of Pregnancy Desires 2. Analyze the Role of Perceptions of Partners' Pregnancy Desires 3. Describe and Predict the Dynamics of Pregnancy Desires 4. Estimate the Influence of Dynamic Pregnancy Desires on Subsequent Pregnancy We propose to use a unique dataset from the Relationship Dynamics and Social Life (RDSL) study. RDSL began with a face-to-face baseline survey of 1,003 18- and 19-year-old women. Over the next 2.5 years, these women provided weekly updates about their desires for pregnancy and about experiences with pregnancy, relationships, contraceptive use, and related attitudes. Over the 2.5-year study period, which ended in February, 2012, the young women reported 233 pregnancies. The analyses proposed here were not part of the original RDSL proposal.