Stanford University, Stanford, California, United States of America.
Manitoba Centre for Health Policy, Winnipeg, Manitoba, Canada.
PLoS One. 2019 Feb 6;14(2):e0211284. doi: 10.1371/journal.pone.0211284. eCollection 2019.
Children born to adolescent mothers generally perform more poorly on school readiness assessments than their peers born to adult mothers. It is unknown, however, whether this relationship extends to the grandchildren of these adolescent mothers. This paper examines the multi-generational outcomes associated with adolescent motherhood by testing whether the grandchildren of adolescent mothers also have lower school readiness scores than their peers; we further assessed if this relationship was moderated by whether the child's mother was an adolescent mother.
We used population-based data to conduct the retrospective cohort study of children born in Manitoba, Canada, 2000-2009, whose mothers were born 1979-1997 (n = 11,326). Overall school readiness and readiness on five domains of development were analyzed using logistic regression models.
Compared with children whose mothers and grandmothers were both ≥ 20 at the birth of their first child, those born to grandmothers who were < 20 and mothers who were ≥ 20 years old at the birth of their first child had 39% greater odds of being not ready for school (95% CI: 1.22-1.60). Children whose grandmothers were ≥ 20 and mothers were < 20 at the birth of their first child had 25% greater odds of being not ready for school (95% CI: 1.11-1.41), and children born to grandmothers and mothers who were both <20 at the birth of their first child had 35% greater odds of being not ready for school (95% CI: 1.18-1.54).
These findings suggest a multigenerational effect of adolescent motherhood on school readiness.
与成年母亲所生的孩子相比，青少年母亲所生的孩子在入学准备评估方面的表现通常较差。然而，尚不清楚这种关系是否会延伸到这些青少年母亲的孙辈身上。本文通过检验青少年母亲的孙辈的入学准备得分是否也低于同龄人，来考察与青少年母亲有关的多代人结局；我们进一步评估了孩子的母亲是否为青少年母亲是否会调节这种关系。
我们使用基于人群的数据，对出生于加拿大马尼托巴省的 2000-2009 年的儿童进行了回顾性队列研究，其母亲出生于 1979-1997 年（n=11326）。使用逻辑回归模型分析总体入学准备情况和五个发展领域的准备情况。
与母亲和祖母在第一个孩子出生时均≥20 岁的孩子相比，祖母在第一个孩子出生时<20 岁且母亲在第一个孩子出生时≥20 岁的孩子上学准备不足的可能性高 39%（95%CI：1.22-1.60）。祖母≥20 岁且母亲在第一个孩子出生时<20 岁的孩子上学准备不足的可能性高 25%（95%CI：1.11-1.41），而祖母和母亲在第一个孩子出生时均<20 岁的孩子上学准备不足的可能性高 35%（95%CI：1.18-1.54）。
这些发现表明青少年母亲对入学准备有多代人的影响。
