From the Clincial Research Centre, Shanghai First Maternity and Infant Hospital (Su), School of Medicine, Tongji University, China; Department of Clinical Medicine-Department of Clinical Epidemiology (Yu, Li), Aarhus University Hospital, Aarhus, Denmark; Department of Biostatistics, School of Public Health, and The Key Laboratory of Public Health Safety of Ministry of Education (Yu), Fudan University; Department of Obstetrics, Shanghai First Maternity and Infant Hospital (Meng, Duan), School of Medicine, Tongji University, Shanghai, China; Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital (Zhao), School of Medicine, Tongji University, Shanghai, China; Department of Public Health Sciences (László), Karolinska Institutet, Stockholm, Sweden; Centre for Public Health Sciences (Valdimarsdóttir), University of Iceland, Reykjavik, Iceland; Department of Medical Epidemiology and Biostatistics (Valdimarsdóttir), Karolinska Institutet, Stockholm, Sweden; Department of Epidemiology (Valdimarsdóttir), Harvard TH Chan School of Public Health, Boston, Massachusetts; Department of Women & Children's Health Care, Shanghai First Maternity and Infant Hospital (Hua), School of Medicine, Tongji University; and Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital (Li), Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Psychosom Med. 2021 Oct 1;83(8):887-893. doi: 10.1097/PSY.0000000000000990.
This study aimed to examine the association of a mother's loss of a close relative before or during pregnancy with intellectual disability (ID) in the offspring.
We performed a nationwide population-based cohort study based on Danish national registries. All live-born singletons born in Denmark during the 1978-2016 period (n = 2,216,601) were followed up starting from birth to 38 years of age. Log-linear Poisson regression was used to estimate the association between maternal bereavement (the death of an older child, a partner, or a parent 1 year before or during pregnancy) and the risk of ID in the offspring.
Maternal bereavement during or before pregnancy was associated with an increased risk of ID (incidence rate ratio [IRR] = 1.15; 95% confidence interval [CI] = 1.04-1.28). The risk of ID was increased by 27% when maternal bereavement occurred during pregnancy (IRR = 1.27; 95% CI = 1.08-1.49). When stratifying on the child's sex, we also observed an increased risk of ID associated with maternal bereavement during pregnancy both for male (IRR = 1.25; 95% CI = 1.02-1.53) and for female (IRR = 1.31; 95% CI = 1.02-1.69), respectively. The IRRs for unnatural death of a relative were also elevated (IRR = 1.22; 95% CI = 0.91-1.64) in general, although the difference was not statistically significant.
Our findings suggest that prenatal stress due to maternal loss of a close relative may increase the risk of offspring's ID of both sexes, in particular when the loss happened during pregnancy.
本研究旨在探讨母亲在妊娠前或妊娠期间失去近亲与后代智力障碍(ID)的关系。
我们进行了一项基于丹麦国家登记处的全国性人群队列研究。所有 1978 年至 2016 年期间在丹麦出生的活产单胎(n=2,216,601)从出生开始随访至 38 岁。采用对数线性泊松回归来估计母亲丧亲(妊娠前或妊娠期间 1 年失去年长子女、伴侣或父母)与后代 ID 风险之间的关系。
母亲在妊娠期间或之前丧亲与 ID 风险增加相关(发病率比[IRR] = 1.15;95%置信区间[CI] = 1.04-1.28)。当母亲在妊娠期间丧亲时,ID 的风险增加了 27%(IRR = 1.27;95% CI = 1.08-1.49)。按孩子的性别分层时,我们还观察到母亲在妊娠期间丧亲与 ID 风险增加相关,无论是男性(IRR = 1.25;95% CI = 1.02-1.53)还是女性(IRR = 1.31;95% CI = 1.02-1.69)。一般来说,亲属非自然死亡的 IRR 也升高(IRR = 1.22;95% CI = 0.91-1.64),尽管差异无统计学意义。
我们的研究结果表明,母亲因失去近亲而导致的产前应激可能会增加男女后代 ID 的风险,尤其是当这种损失发生在妊娠期间时。