Intergenerational Risk Research Articles

Prenatal Cannabis Exposure-An Intergenerational Risk Marker for Neurodevelopment.

Prenatal Cannabis Exposure-An Intergenerational Risk Marker for Neurodevelopment.

Maternal childhood trauma, caregiving behavior, and child cognitive development in the context of drug addiction.

Exposure to childhood trauma confers intergenerational risk on child development. However, the mechanism linking a mother's childhood trauma with her child's cognitive development remains poorly understood. This study recruited 71 mother-child dyads affected by substance use disorder from local, community-based, outpatient substance use treatment programs. Maternal exposure to childhood trauma, caregiving behavior, and child cognitive development were assessed in each mother-child dyad. These were measured through a comprehensive biopsychosocial interview, an observed dyadic interaction coded using the Coding Interactive Behavior system, and the Bayley Scales of Infant and Toddler Development, Screening Test, respectively. We hypothesized that compromised caregiving behavior would mediate a negative relationship between maternal childhood trauma and child cognitive development. Analyses did not support this hypothesis. Specifically, maternal childhood trauma was not significantly associated with child cognitive development nor the four dimensions of maternal caregiving behavior. However, caregiving behavior (specifically maternal sensitivity and limit setting) was associated with child cognitive development, when controlling for maternal childhood trauma and child age. The lack of associations observed suggests that protective factors may buffer the intergenerational impact of childhood trauma. Furthermore, the relationship between quality of caregiving and child cognitive development highlights the importance of interventions which foster sensitive caregiving behaviors that may bolster child cognitive development in the context of maternal substance use disorder and maternal childhood trauma. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Adult mental healthcare professionals’ experiences of family centred conversations with patients who are parents: a qualitative study

BackgroundMany parents with a mental illness report a desire for both recognition of their parental role and support for themselves and their children. However, parents are often fearful of negative judgements from professionals about their ability to be a parent, which inhibits raising concerns about their children with clinical teams. Consequently, an essential first step to supporting families is for professionals to proactively identify which patients are parents, although evidence indicates this is not consistently part of services. Professionals could play a pivotal role in guiding parents about how to talk to their children about their mental illness; this in turn can facilitate family functioning and enable children to access evidence-based interventions. This approach is crucial for mitigating the well-documented intergenerational risk of poorer outcomes and mental illness in children of affected parents. This study aimed to explore adult mental healthcare professionals’ beliefs and experiences of talking with patients about: i) their role as parents ii) communication with their children about mental illness.MethodsSemi-structured qualitative interviews were conducted with 19 adult mental healthcare professionals with 4-30 years’ experience of working with adult patients under the care of NHS adult mental healthcare services in England. Audio recordings were transcribed verbatim and analysed using an inductive coding approach following the principles of thematic analysis.ResultAll participants recognised their responsibility to identify patients’ children through routine safeguarding protocols, but supporting patients around telling their children the diagnosis was less common. Many participants expressed concerns that raising the topic of children with patients could conflict with other parts of their professional role or would not be welcomed. Obstacles to these conversations were identified, across individual, environmental and organisational factors. Potential facilitators included specific staff training and resources for clinical teams and families around how to tell children about mental illness.ConclusionAdult mental healthcare professionals would benefit from enhanced training on the importance and methods of guiding parents to communicate with their children about mental illness. This should include routine identification of which patients are parents and recognition of the impact of an adult’s mental illness on the wider family system.

Linear risk sharing in intergenerational pension

ABSTRACT We introduce and analyze a novel collective defined contribution plan (CDC) that guarantees at least a target benefit as a lump sum upon retirement. The guarantee is provided by the remaining working generations under a pre-determined linear intergenerational risk sharing (IRS) rule. Through a simulation-based study, we show that the CDC scheme consistently outperforms the comparable individual DC scheme (IDC) in terms of risk-adjusted performance. An extensive sensitivity analysis indicates that this outperformance is robust, especially in a ‘double-hit’ scenario where the underlying market dynamics and the demographics are severely worse than expected. Our work indicates that guaranteed retirement benefits can be organized via a CDC scheme with IRS in a way that it is, first, beneficial for all generations to join and, second, resilient against demographic change.

When Interest Rates Go Low, Should Public Debt Go High?

Is deficit finance free when real borrowing rates are routinely lower than growth rates? Specifically, can the government make all generations better off by perpetually taking from the young and giving to the old? We study this in stochastic closed- and open-economy OLG models. Unfortunately, Pareto gains are predicted only for implausible calibrations. Even then, the gains reflect improved inter-generational risk sharing, improved international risk sharing, and beggaring thy neighbor—not intergenerational redistribution, per se. As we show, theoretically and quantitatively, low government borrowing rates suggest state-contingent bilateral transfers between generations––not unconditional, unilateral redistribution from future to current generations. (JEL E43, E62, F41, H55, H63)

Optimal investment strategies and intergenerational risk sharing for target benefit pension plans under habit formation

This paper investigates a stochastic model of a continuous-time target benefit pension system with habit formation, where members' contributions are predetermined and pension payments depend on the financial condition of the system. Moreover, risk sharing among different generations is considered and we incorporate the habitual benefit payment process into the plan manager's objective. Concretely, the plan manager aims to minimize the deviation between actual payments and habitual payments, which can minimize the combined benefit-risk (i.e. deviation from the habitual target) and intergenerational transfers effectively. Furthermore, the pension fund is allowed to invest in a risk-free asset and a risky asset. By employing the martingale method, we derive the optimal investment strategy and the benefit adjustment strategy explicitly. Finally, numerical analysis is provided to illustrate the effects of model parameters on the optimal strategies.

Pathways of Intergenerational Risk: Examining the Association Between Maternal Adverse Childhood Experiences and Child Socio-Emotional and Behavioral Concerns at 8 Years of Age.

Support has been found for the intergenerational transmission of risk from maternal adverse childhood experiences (ACEs) to child outcomes. Less research has focused on longitudinal psychosocial pathways that account for this transmission. In the current study, path analysis examined mediating pathways (i.e., maternal adult attachment insecurity, romantic relationship functioning, and maternal anxiety and depression symptoms) in the association between maternal ACEs and internalizing and externalizing concerns among their child at eight years of age. Participants included 1,994 mother-child dyads from a prospective longitudinal cohort sample. Maternal ACEs were significantly associated directly with child internalizing concerns (β = .06, p = .025) and indirectly via both maternal attachment anxiety and avoidance, lower romantic relationship functioning, and depression, (β = .002, p = .006; β = .003, p = .005, respectively). Maternal ACEs were directly associated with child externalizing concerns (β = .06, p = .018) and indirectly via both maternal attachment anxiety and avoidance, lower romantic relationship functioning, and depression, (β = .001, p = .008; β = .002, p = .010, respectively). This study identified several maternal risk factors that have implications for downstream internalizing and externalizing concerns among their children.

Maternal adverse childhood experiences and infant visual-limbic white matter development

BackgroundMaternal adverse childhood experiences (ACEs) are robust predictors of mental health for both the exposed individual and the next generation; however, the pathway through which such intergenerational risk is conferred remains unknown. The current study evaluated the association between maternal ACEs and infant brain development, including an a priori focus on circuits implicated in emotional and sensory processing. MethodsThe sample included 101 mother-infant dyads from a longitudinal study. Maternal ACEs were assessed with the Adverse Childhood Questionnaire dichotomized into low (0 or 1) and high (≥2) groups. White matter microstructure, as indexed by fractional anisotropy (FA), was assessed using structural magnetic resonance imaging in infants (41.6–46.0 weeks' postconceptional age) within a priori tracts (the cingulum, fornix, uncinate, inferior frontal occipital fasciculus, and inferior longitudinal fasciculus). Exploratory analyses were also conducted across the whole brain. ResultsHigh maternal ACEs (≥2) were associated with decreased infant left inferior longitudinal fasciculus (ILF) FA (F(1,94) = 7.78, p < .006) relative to infants of low ACE mothers. No group difference was observed within the right ILF following correction for multiple comparisons (F(1,95) = 4.29, p < .041). Follow-up analyses within the left ILF demonstrated associations between high maternal ACEs and increased left radial diffusivity (F(1,95) = 5.10, p < .006). Exploratory analyses demonstrated preliminary support for differences in visual processing networks (e.g., optic tract) as well as additional circuits less frequently examined in the context of early life adversity exposure (e.g., corticothalamic tract). ConclusionsMaternal ACEs predict neural circuit development of the inferior longitudinal fasciculus. Findings suggest that early developing sensory circuits within the infant brain are susceptible to maternal adverse childhood experiences and may have implications for the maturation of higher-order emotional and cognitive circuits.

Exploring perceptions of genetic risk and the transmission of substance use disorders

BackgroundSubstance use disorders (SUDs) have been consistently shown to exhibit moderate intergenerational continuity (1–3). While much research has examined genetic and social influences on addiction, less attention has been paid to clients’ and lay persons’ perceptions of genetic influences on the heritability of SUD (4) and implications for treatment.MethodsFor this qualitative study, twenty-six structured Working Model of the Child Interviews (WMCI) were conducted with mothers receiving inpatient SUD treatment. These interviews were thematically analyzed for themes related to maternal perceptions around intergenerational transmission of substance use behaviours.ResultsFindings show that over half of the mothers in this sample were preoccupied with their children’s risk factors for addictions. Among this group, 29% spontaneously expressed concerns about their children’s genetic risk for addiction, 54% shared worries about their children’s propensity for addiction without mentioning the word gene or genetic. Additionally, 37% had challenges in even discussing their children’s future when prompted. These concerns mapped onto internal working models of attachment in unexpected ways, with parents who were coded with balanced working models being more likely to discuss intergenerational risk factors and parents with disengaged working models displaying difficulties in discussing their child’s future.ConclusionThis research suggests that the dominant discourse around the brain-disease model of addictions, in its effort to reduce stigma and self-blame, may have unintended downstream consequences for parents’ mental models about their children’s risks for future addiction. Parents receiving SUD treatment, and the staff who deliver it, may benefit from psychoeducation about the intergenerational transmission of SUD as part of treatment.

Risk cycling in diabetes and autism spectrum disorder: a bidirectional Mendelian randomization study.

The relationship between diabetes mellitus (DM) and autism spectrum disorder (ASD) remains controversial. This study aimed to analyze the causal relationship between different types of DM and ASD by bidirectional Mendelian randomization (MR). Single nucleotide polymorphisms for type 1 diabetes mellitus (T1DM), type 2 diabetes mellitus (T2DM), gestational diabetes mellitus (GDM), and ASD were obtained from genome-wide association studies. Subsequently, inverse variance weighted, MR-Egger, and weighted median were used to test the exposure-outcome causality. Finally, MR-Egger's intercept, Cochran's Q, and leave-one-out method were used to assess horizontal pleiotropy, heterogeneity, and sensitivity of the results, respectively. The positive analysis showed that T2DM was associated with an increased risk of ASD, whereas neither T1DM nor GDM was associated with the risk of ASD. The reverse analysis showed that ASD was associated with an increased risk of T2DM, while it was not associated with the risk of either T1DM or GDM. MR-Egger intercept showed no horizontal pleiotropy (p > 0.05) for these results. Cochran's Q showed no heterogeneity expect for the results of T1DM on the risk of ASD, and leave-one-out sensitivity analysis showed these results were robust. This MR analysis suggests that T2DM and ASD are reciprocal risk factors and that they may create an intergenerational risk cycling in female patients. Aggressive prevention and treatment of T2DM and ASD help to break the trap of this risk cycling. Additionally, this study does not support a causal relationship between T1DM and ASD, as well as GDM and ASD. And more studies are needed in the future to continue to explore the interactions and underlying mechanisms between different types of DM and ASD.

Reforming the Dutch pension system to ensure sustainability

AbstractThe Netherlands is on the brink of reforming its system of occupational pensions as part of a more general reform of its three‐pillar pension system. This reform features important changes to first pillar pension benefits. The focus of this article is however on the coming reform of occupational pensions, the second pillar of the system, which concerns both pension contributions and benefits. This reform is related to a series of reforms that have gradually transformed the pension contract that was dominant 20 years ago, a final salary defined benefit contract, into a collective defined contribution contract. We argue that these reforms are a response to changes in the external environment, such as population ageing and a secular decline of interest rates. The coming reform responds to the call for a pension scheme that is more individualistic, more closely connected to the labour market, and which does not share interest rate risks between generations. The New Pension Contract remains in part collective, since the assets of participants are invested collectively, and a mandatory solidarity fund can be used for intergenerational risk sharing.

Chronic oral disease burden at the first 1000 days: Intergenerational risk factors, BRISA cohort

AbstractObjectiveTo analyze multiple‐causal models, including socioeconomic, obesity, sugar consumption, alcohol smoking, caries, and periodontitis variables in pregnant women with early sugar exposure, obesity, and the Chronic Oral Disease Burden in their offspring around the first 1000 days of life.MethodsThe BRISA cohort study, Brazil, had two assessments: at the 22nd–25th gestational weeks and during the child's second year (n = 1141). We proposed a theoretical model exploring the association between socioeconomic and pregnancy factors (age, smoking, alcohol, sugars, obesity, periodontitis, and caries) and child's variables (sugars and overweight) with the outcome, Chronic Oral Disease Burden (latent variable deduced from visible plaque, gingivitis, and tooth decay), using structural equation modeling.ResultsCaries and periodontitis were correlated in pregnant women. Addictive behaviors in the gestational period were correlated. Obesity (Standardized coefficient ‐ SC = 0.081; p = 0.047) and added sugar consumption (SC = 0.142; p = 0.041) were observed intergenerationally in the pregnant woman‐child dyads. Sugar consumption by the children (SC = 0.210; p = 0.041) increased the Chronic Oral Disease Burden.ConclusionsPoor caries and periodontal indicators were correlated in pregnant women and their offspring. Obesity and sugar consumption act intergenerationally. Oral health in early life may change life trajectory since the worst oral conditions predict main NCDs.

Maternal Borderline Personality Disorder Severity and Parenting Behaviors During Conflict Discussions With Adolescent Offspring

Examining the impact of maternal borderline personality disorder (BPD) on parent-child interactions could elucidate pathways of intergenerational risk and inform intervention. The current study used an expanded version of the Observing Mediational Interactions to investigate (a) associations between maternal BPD symptom severity and mediational parenting behaviors during conflict discussions with clinically referred early adolescent offspring (N = 56, age = 10-15, 54% female) and their mothers, and (b) the potential moderating role of early adolescent BPD symptom severity in those associations. Consistent with hypotheses, mothers with higher levels of BPD symptom severity engaged in fewer positive emotional/attachment-based behaviors and more negative (i.e., invalidating, controlling, coercive, or insensitive) parenting behaviors. Only parent-reported, but not self-reported, adolescent BPD severity moderated these associations; maternal BPD severity was significantly associated only with negative parenting in dyads with low-to-moderate levels of parent-reported adolescent BPD severity. We discuss implications including targeting attachment-based and negative parenting behaviors in intervention.

Maternal suicide risk predicts preschooler emotional and behavioral problems

Maternal history of suicidal thoughts and behaviors (STBs) has been identified as a robust risk factor for offspring emotional and behavioral problems, including risk for offspring STBs. The impact of maternal history of STBs has been well-documented in adolescent and young adult samples, with emerging research highlighting the need to examine early clinical correlates of risk in young children, prior to the emergence of STBs. In an extension of prior work, the current study examined associations between maternal history of STBs and previously identified emotional and behavioral correlates of STBs (negative affect, internalizing problems, attention problems, aggressive behavior) in young children. These associations were examined in a mother-preschooler sample (n = 158, mean preschooler age=41.52 months) with approximately half of mothers endorsing a history of STBs and 20 % of the sample scoring at the threshold that indicates suicide risk. In multivariate models, maternal history of STBs was significantly associated with preschooler aggressive behavior, assessed via mother- (β=0.19) and teacher-report (β=0.21), as well as mother-reported negative affect (β=0.22). Results document a link between maternal history of STBs and increased risk for heightened negative affect and aggressive behavior at home and school during the sensitive preschool period. Findings are discussed within the context of enhancing models of intergenerational transmission suicide risk.

21. How Genes and Environments Modify Intergenerational Risk for Depression – Using Polygenic Scores to Translate Between Rodents and Humans

21. How Genes and Environments Modify Intergenerational Risk for Depression – Using Polygenic Scores to Translate Between Rodents and Humans

Children of trauma survivors: Influences of parental posttraumatic stress and child-perceived parenting

BackgroundResearch has established a negative association between parental posttraumatic stress symptoms (PTSS), including subthreshold symptoms, and child physical and behavioral health outcomes. Such intergenerational transmission of risk has multiple possible mechanisms, including lack of positive parenting, increased negative parenting, shared environmental and contextual risks, and potential biological components such as shared genetics or even transmission of epigenetic risk. MethodThis study examined 93 parent-child dyads (n = 171 participants total) from a mixed Urban-Suburban US metropolitan area to investigate the relations between parental PTSS and child-perceived parenting and child PTSS. We sought to examine interactions between parental PTSS and parenting on child PTSS. ResultsWe found an association between parent and child PTSS, consistent with prior literature showing increased risk for children of trauma survivors. Interestingly, we found effects of positive parenting on diminished child PTSS symptoms only in parents without PTSS, whereas the effect of positive parenting on buffering child symptoms was absent in parents with PTSS.Limitations.The present findings are tempered by the use of self-report data to assess parent and child PTSS, which is not as reliable as clinician assessment of symptoms. Further, the use of survey data limits what is known about the extent of trauma exposure in parents and children, and different measures were used to assess PTSS in parents and kids, which limits comparability of these reported symptoms. DiscussionLimitations notwithstanding, findings suggest joint attention paid to parenting practices and to a parent's recovery, even from subthreshold symptoms of PTSS, as two different but important ways to support trauma survivor parents in their efforts to most optimally parent and protect their children from intergenerational risk.

Examining intergenerational risk factors for conduct problems using polygenic scores in the Norwegian Mother, Father and Child Cohort Study

The aetiology of conduct problems involves a combination of genetic and environmental factors, many of which are inherently linked to parental characteristics given parents’ central role in children’s lives across development. It is important to disentangle to what extent links between parental heritable characteristics and children’s behaviour are due to transmission of genetic risk or due to parental indirect genetic influences via the environment (i.e., genetic nurture). We used 31,290 genotyped mother-father-child trios from the Norwegian Mother, Father and Child Cohort Study (MoBa), testing genetic transmission and genetic nurture effects on conduct problems using 13 polygenic scores (PGS) spanning psychiatric conditions, substance use, education-related factors, and other risk factors. Maternal or self-reports of conduct problems at ages 8 and 14 years were available for up to 15,477 children. We found significant genetic transmission effects on conduct problems for 12 out of 13 PGS at age 8 years (strongest association: PGS for smoking, β = 0.07, 95% confidence interval = [0.05, 0.08]) and for 4 out of 13 PGS at age 14 years (strongest association: PGS for externalising problems, β = 0.08, 95% confidence interval = [0.05, 0.11]). Conversely, we did not find genetic nurture effects for conduct problems using our selection of PGS. Our findings provide evidence for genetic transmission in the association between parental characteristics and child conduct problems. Our results may also indicate that genetic nurture via traits indexed by our polygenic scores is of limited aetiological importance for conduct problems—though effects of small magnitude or effects via parental traits not captured by the included PGS remain a possibility.

Shoulder dystocia by severity in families: A nationwide population study.

Previous studies have established a history of shoulder dystocia as an important risk factor for shoulder dystocia, but studies on shoulder dystocia by severity are scarce. It is unknown if shoulder dystocia tends to be passed on between generations. We aimed to assess the recurrence risk of shoulder dystocia by severity in the same woman and between generations on both the maternal and paternal side. We also assessed the likelihood of a second delivery and planned cesarean section after shoulder dystocia. This was a population-based cohort study, using data from the Medical Birth Registry of Norway. To study recurrence in the same mother, we identified 1 091 067 pairs of first and second, second and third, and third and fourth births in the same mother. To study intergenerational recurrence, we identified an individual both as a newborn and as a mother or father in 824 323 mother-offspring pairs and 614 663 father-offspring pairs. We used Bayesian log-binomial multilevel regression to calculate relative risks (RR) with 95% credible intervals. In subsequent deliveries in the same woman the unadjusted RR of recurrence was 7.05 (95% credible interval 6.39-7.79) and 2.99 (2.71-3.31) after adjusting for possible confounders, including current birthweight. The RRs were higher with severe shoulder dystocia as exposure or outcome. With severe shoulder dystocia as both exposure and outcome, unadjusted and adjusted RR was 20.42 (14.25-29.26) and 6.29 (4.41-8.99), respectively. Women with severe and mild shoulder dystocia and those without had subsequent delivery rates of 71.1, 68.9 and 69.0%, respectively. However, the rates of planned cesarean section in subsequent deliveries for those without shoulder dystocia, mild and severe were 1.3, 5.2 and 16.0%, respectively. On the maternal side the unadjusted inter-generational RR of recurrence was 2.82 (2.25-3.54) and 1.41 (1.05-1.90) on the paternal side. Corresponding adjusted RRs were 1.90 (1.51-2.40) and 1.19 (0.88-1.61), respectively. We found a strong recurrence risk of shoulder dystocia, especially severe, in subsequent deliveries in the same woman. The inter-generational recurrence risk was higher on the maternal than paternal side. Women with a history of shoulder dystocia had more often planned cesarean section.

Case report: The Circle Game

The authors present a rare case of a family in which both the mother, and four decades later the son, committed second-degree murder while suffering from major mental illnesses. The mother had successfully used a mental disorder defence and it was likely that the son who had raised the defence would have qualified also. The mother has a history of adverse childhood experiences. The son had also experienced various severe childhood adversities, though there were no functional impairments, personality dysfunction, suicidality or violent crimes until the onset of treatment-resistant schizoaffective disorder around age 18. His earlier comorbidities included sport-related traumatic brain injuries, sickle cell trait, severe burns, and tardive dyskinesia. His comorbidities around the material time included occasional cannabis use and dementia pugilistica. While awaiting court ruling on criminal responsibility, additional stressors triggered significant deterioration of his schizoaffective disorder and the court found him unfit to stand trial. During rehabilitation, he was severely injured by another accused, which subsequently led to his demise. This case is the first report of intergenerational mental disorder defence and involved almost every facet of criminal forensic psychiatry, which highlights the need for further research on the association between intergenerational ACEs and intergenerational risk for criminal behaviour from a comprehensive and longitudinal perspective.

Abstract 14953: Racial and Ethnic Disparities in Preterm Birth Among Individuals With Hypertensive Disorders of Pregnancy in the United States, 2020-2021

Introduction: Preterm birth (PTB) is a common adverse outcome in pregnancies complicated by hypertensive disorders of pregnancy (HDP). PTB and HDP are each associated with higher risk of cardiovascular disease (CVD) in both the pregnant individual and their offspring. Racial and ethnic disparities have been described individually in PTB and HDP but the frequency of PTB among individuals with HDP, and whether differences exist by maternal race and ethnicity, is not known. Methods: We used cross-sectional data from the National Center for Health Statistics and included nulliparous individuals aged 15-44 years with a singleton, live birth who had new-onset HDP (gestational hypertension or preeclampsia) in the US in 2020 and 2021. We calculated the frequency of PTB (gestational age &lt; 37 weeks) among those with HDP (%), overall and stratified by self-reported maternal race and ethnicity group (American Indian/Alaskan Native [AIAN], non-Hispanic Asian/Pacific Islander [API], Hispanic, non-Hispanic Black [NHB], non-Hispanic White [NHW]). We compared the frequency of PTB in each racial and ethnic group to the referent group (NHW) with age-standardized rate ratios (aRR). Results: Among 302,817 individuals with HDP, 0.7% were AIAN, 0.8% API, 18.7% Hispanic, 15.5% NHB, and 57.2% NHW. The frequency of PTB among individuals with HDP was 17.6% (95% 17.4-17.8) in 2020 and 18.0% (17.8-18.2) in 2021. Significant racial and ethnic differences were observed in the frequency of PTB with HDP in 2020 and 2021 ( Table ). In 2021, compared with NHW individuals, AIAN (aRR 1.2 [1.0-1.4]), Hispanic (aRR 1.1 [1.1-1.2]), and NHB (aRR 1.4 [1.3-1.4]) individuals had a significantly higher risk of PTB with HDP. Conclusions: In 2020-2021, nearly 1 out of 5 nulliparous individuals with HDP also experienced PTB. Identifying and addressing drivers of racial and ethnic differences in the co-occurrence of PTB and HDP may offer an opportunity to mitigate disparities in intergenerational CVD risk.