Department of Neonatology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
Division of Newborn Medicine, Boston Children's Hospital, Boston, Massachusetts, USA.
Acta Paediatr. 2023 Feb;112(2):254-260. doi: 10.1111/apa.16586. Epub 2022 Nov 12.
To test whether poor childhood pulmonary function explains the relationship between extremely preterm (EP) birth and attention-deficit/hyperactivity disorder (ADHD) symptoms in young adulthood.
EPICure birth cohort participants include children born <26 weeks' gestation in the United Kingdom and Ireland in 1995 and their term-born classmates. Predictor was EP birth. Outcomes were inattention/hyperactivity subscale z-scores at 19 years. Forced expiratory volume (FEV1) z-scores in childhood and young adulthood were mediators. We used recursive path analysis to determine the direct effect of EP birth on inattention/hyperactivity and its indirect effect through pulmonary function.
Ninety EP and 47 term-born participants had pulmonary function testing at 11 and 19 years. Inattention z-scores were higher in the EP group (mean difference 0.55 [95% CI 0.11, 0.99]) but not hyperactivity. Compared to term-born peers, EP participants had lower FEV1 z-scores at 11 (mean difference-1.35 [95% CI -1.72, -0.98]) and 19 (mean difference-1.29 [95% CI -1.65, -0.92]). Path models revealed that childhood pulmonary function explained the relationship between EP birth and inattention.
Extremely preterm young adults have increased risk for inattention compared to term-born peers. Poor pulmonary function appears to underlie this risk. The mechanisms responsible remain unclear and warrant further study.
检验儿童时期肺功能较差是否可以解释极早产(EP)与成年早期注意力缺陷多动障碍(ADHD)症状之间的关系。
EPICure 出生队列的参与者包括在 1995 年于英国和爱尔兰胎龄<26 周出生的 EP 儿童及其足月出生的同学。预测因素为 EP 出生。结局为 19 岁时注意力不集中/多动障碍亚量表 z 评分。儿童期和成年早期的用力呼气量(FEV1)z 评分作为中介。我们采用递归路径分析来确定 EP 出生对注意力不集中/多动障碍的直接影响及其通过肺功能的间接影响。
90 名 EP 儿童和 47 名足月出生儿童在 11 岁和 19 岁时进行了肺功能测试。EP 组的注意力不集中 z 评分较高(平均差异 0.55 [95% CI 0.11, 0.99]),但多动障碍评分无差异。与足月出生的同龄人相比,EP 参与者在 11 岁(平均差异-1.35 [95% CI -1.72, -0.98])和 19 岁(平均差异-1.29 [95% CI -1.65, -0.92])时的 FEV1 z 评分较低。路径模型显示,儿童时期的肺功能解释了 EP 出生与注意力不集中之间的关系。
与足月出生的同龄人相比,极早产的年轻人注意力不集中的风险增加。较差的肺功能似乎是这种风险的基础。其潜在机制尚不清楚,需要进一步研究。