On the validity of retrospective assessments of pregnancy intention
On the validity of retrospective assessments of pregnancy intention
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DOI：
10.1353/dem.2002.0006
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发表时间：
2002-02-01
期刊：
影响因子：
3.5
通讯作者：
Korenman, S
中科院分区：
文献类型：
--
作者：
Joyce, T;Kaestner, R;Korenman, S
关于怀孕意向的信息通常是回顾性地（在孩子出生后）收集的。这篇文章调查了是否对怀孕意图的回顾性评估导致了对意外生育的程度或后果的有偏见的估计。利用全国青年纵向调查的数据，对怀孕期间和出生后确定的怀孕意图进行了比较。为了解决选择性识别或承认怀孕造成的偏差，我们使用数据的纵向特征来确定访谈时的实际怀孕状况，这反过来又被用作怀孕意图的回顾性（相对于前瞻性）报告的工具变量。在对选择性妊娠识别进行校正后，我们发现没有证据表明对妊娠意图的回顾性评估对意外生育的数量或后果产生了误导性的估计。这一发现得到了对一小部分妇女子样本的进一步分析的支持，这些妇女在怀孕期间和出生后都收集了怀孕意向的信息。
Information on pregnancy intention is often gathered retrospectively (after the birth of a child). This article investigates whether the retrospective assessment of pregnancy intention leads to biased estimates of the extent or consequences of unintended fertility. Comparisons are made between pregnancy intentions ascertained during pregnancy and after birth using data from the National Longitudinal Survey of Youth. To address the bias caused by selective recognition or acknowledgment of pregnancy, we used the longitudinal feature of the data to determine actual pregnancy status at the time of interviews, which, in turn, was used as an instrumental variable for the retrospective (versus prospective) reporting of pregnancy intention. After correction for selective pregnancy recognition, we found no evidence that the retrospective assessment of pregnancy intention produces misleading estimates of either the number or the consequences of unintended births. This finding is supported by additional analyses of a small subsample of women for whom information on pregnancy intention was collected both during pregnancy and after birth.