Tierney Katherine
Department of Sociology, Western Michigan University, 1903 W. Michigan Ave, Kalamazoo, MI 49008-5257 USA.
Popul Res Policy Rev. 2022;41(5):2289-2309. doi: 10.1007/s11113-022-09731-5. Epub 2022 Jul 18.
As postponement of first births continues in the United States, women and couples will likely continue to turn to assisted reproductive technologies (ART) to overcome biological barriers to childbearing. This paper uses stochastic projections to estimate the potential impacts of ART on the US total fertility rate (TFR) overall and across sociodemographic groups using publicly available data. Assuming the trends in ART continue and the TFR remains at the mean estimate, the projection shows the ART TFR will rise from 0.023 accounting for 1.29% of the mean projected TFR in 2020 to 0.048 or 2.64% of the TFR by 2040. However, for the TFR of women over 30, this percentage is estimated at 2.68% in 2020 and 5.60% by 2040. Group-level projections quantify stratification by parity, race, and education assuming trends across these groups continue. Overall, the results show that if current trends continue, growth in demand for ART will likely increase, especially at older maternal ages, even as inequalities by race and social class remain. These projections provide a picture of ART births if inequality in access and outcomes is not addressed and highlight the need for attention to policies that address these disparities.
在美国,初育推迟现象持续存在,女性及夫妇可能会继续借助辅助生殖技术(ART)来克服生育方面的生理障碍。本文利用随机预测方法,依据公开数据估算辅助生殖技术对美国总体及不同社会人口群体的总生育率(TFR)的潜在影响。假设辅助生殖技术的发展趋势持续,且总生育率维持在平均估计水平,预测显示辅助生殖技术带来的生育率将从2020年占预计平均总生育率1.29%的0.023升至2040年的0.048,即占总生育率的2.64%。然而,对于30岁以上女性的总生育率而言,这一比例在2020年估计为2.68%,到2040年为5.60%。群体层面的预测在假设这些群体的趋势持续的情况下,对按胎次、种族和教育程度进行的分层进行了量化。总体而言,结果表明,如果当前趋势持续,辅助生殖技术的需求增长可能会加大,尤其是在产妇年龄较大的情况下,即便种族和社会阶层不平等现象依然存在。这些预测描绘了在不解决获取机会和结果不平等问题的情况下辅助生殖技术生育的情况,并凸显了关注解决这些差异的政策的必要性。