Factors that May Affect the Health of Siblings of Children Who Have an Intellectual/Developmental Disability

Cultural applicability and desirability of 'Broodles': The first serious game intervention for siblings of children with disabilities

Objective

Serious games can serve as easily accessible interventions to support siblings of children with disabilities, who are at risk of developing mental health problems. The Dutch serious game 'Broodles' was developed for siblings aged 6-9 years. The current study aims to assess the cultural applicability, desirability, feasibility, and acceptability of 'Broodles' in Norway.

Methods

Norwegian siblings (N = 16) aged 6-13 years and parents (N = 12) of children with intellectual disabilities assessed the game. Their feedback data from interviews and questionnaires were sorted using a model of engagement factors in serious games.

Results

At pre-use, participants showed interest in the game, and after initial use the participants were overall positive about the format, content and objectives, including validation of emotions and recognition. The participants had suggestions for improved engagement and feasibility.

Conclusion

The game was found to be culturally applicable, desirable and acceptable, although Norwegian translation is necessary for further evaluation. Recommendations to enhance engagement were provided, including suggestions to play the game with parents or in a group.

Innovation

This initial assessment of the serious game Broodles in a non-Dutch setting shows promise for an innovative way of supporting siblings of children with disabilities.

"Broken fragments or a breathtaking mosaic": A mixed methods study of self-reported attributes and aspirations of siblings of individuals with and without neurodevelopmental conditions

Siblings of individuals with neurodevelopmental conditions (NDCs) experience distinct challenges and have unique strengths compared to siblings of individuals without NDCs. The present study examined attributes and aspirations of siblings of individuals with and without neurodevelopmental conditions, and analyzed the association between qualitative responses and quantitative measures of growth mindset, positive and negative valence, and mental health diagnoses. A novel mixed methods thematic analysis was employed to explore the experiences of 166 siblings (75 NDC and 91 controls, aged 14-26, 66.27% female) completing an online survey as part of a larger study on sibling mental health. The overarching theme described The Process of Self-Actualization and Integration, reflecting the journey siblings undergo in seeking to understand themselves and others amidst psychological challenges. It encompassed three subthemes: Personal Growth and Identity Formation; Connection and Belonginess; and Societal Perspective and Global Consciousness. Qualitative responses were analyzed within a Research Domain Criteria (RDoC) framework, and associations between phenomenology and mental health diagnoses examined. NDC siblings had higher negative valence and lower positive valence embedded in their responses, and quantitatively lower self-reported growth mindset (i.e., beliefs about the capacity for personal growth), compared to control siblings, which correlated with self-reported mental health diagnoses. Findings suggest clinical practice may focus on optimizing self-identified strengths and offer opportunities for self-actualization of hopes and ambitions, while providing support for families to attenuate bioecological factors impacting mental health.

Self-Reported Traumatic Brain Injury and Its Biopsychosocial Risk Factors in Siblings of Individuals with Neurodevelopmental Conditions

Siblings of individuals with neurodevelopmental conditions (NDCs) are situated within a complex system of risk and resilience factors for poor outcomes, many of which overlap with the risk of traumatic brain injury (TBI) and correlate with poorer recovery trajectories. This study used Bayesian analyses to characterize and compare TBI and biopsychosocial risk factors among 632 siblings (207 NDC, 425 controls; mean age 20.54 years, range 10-30, 78.48% female). NDC siblings had a higher self-reported lifetime history of TBI compared to controls (14.98% versus 6.35%), with most reporting more than one TBI, and at an earlier age. TBI history was associated with psychiatric diagnoses and subclinical NDC features. Family and structural factors related to TBI included poorer parent-child relationship, NDC diagnoses of autism or fetal alcohol spectrum disorder, minority ethnicity, and lower income. Findings have implications for health literacy, TBI education and screening, and implementation of family support.

The impact of disability awareness education program for typically developing children on attitudes and behaviors toward siblings with intellectual disabilities

This study aims to investigate the impact of the "Disability Awareness Education Program" implemented for typically developing children with siblings who have intellectual disabilities on the attitudes and behaviors of these children. This study is divided into two stages. The first stage is descriptive, while the second is a quasi-experimental study consisting of pre-, post-intervention, and control groups. The study was carried out on the parents and typically developing siblings of children with intellectual disabilities studying in Special Educational Institutions in a province of Turkey. In the first phase, it was determined that 31 of 913 intellectually disabled children had siblings with typically developing aged 13-15. In the second phase, the education program was applied to typically developing siblings in the intervention group. It was concluded that the education program applied to typically developing children had a positive impact on their attitudes and behaviors toward their siblings with intellectual disabilities.

Short report: Siblings of children with neurodevelopmental disorders, a phenomenological perspective on parental perception

BACKGROUND

Siblings, typically developing brothers and sisters of children with neurodevelopmental disorders (NDD), are at risk for long-term psychosocial difficulties.

OBJECTIVE

The present study aims at obtaining an in-depth insight on the lived experience of siblings of children with NDD through their parents' perspective.

METHODS

Seven mothers and three fathers who signed up their sibling children (12-15 years) to a peer-support intervention participated in a semi-structured videoconference interview according to the Interpretative Phenomenological Analysis (IPA) qualitative approach. Interviews were conducted by trained personnel and independently coded.

RESULTS

Thematic analysis highlighted three core themes and twelve sub-themes: "The complexity of the fraternal relationship" (three sub-themes), "Growing up with diversity" (six sub-themes), and "Me as a sibling" (three sub-themes).

CONCLUSIONS

The study provides insight on parents' perception of the lived experience of their sibling children, thus spreading awareness on the everyday difficulties families with a child with NDD may encounter.

WHAT THIS PAPER ADDS

The present study contributes to the scarce literature on the lived experience of siblings of children with NDD, and notably it is one of the few qualitative studies on the topic which makes use of an IPA interviewing style. This methodological choice allowed for an in-depth understanding of siblings' strengths and struggles as perceived by their own parents, and of how their brother/sister's condition impacted on their family role, socio-emotional development and personality. Recounting siblings' experiences contributes in spreading awareness on the everyday difficulties siblings and their families face when cohabitating with a child with NDD.

Couple relationship experiences of siblings and siblings-in-law of persons with intellectual disabilities

BACKGROUND

This study examined how siblings and siblings-in-law of persons with intellectual disabilities experience the establishment of and processes within the couple relationship.

METHOD

In-depth semi-structured interviews with 12 siblings and 12 siblings-in-law of persons with intellectual disabilities were analysed using thematic analysis.

RESULTS

The participants did not perceive their special siblinghood as detrimental to their couple relationships. Siblings-in-law's prior acquaintance with persons with disabilities and professional support provided to the family of origin emerged as contributing factors. The effect of the siblinghood on the couple relationship was both positive and negative.

CONCLUSIONS

The findings support the importance of the acceptance of others who are different, including in couple relationships when a sibling or sibling-in-law has intellectual disabilities, and underscore the role of professional therapists.

Influence of family strength on life satisfaction of individuals who have a sibling with disability: Mediating effect of disability acceptance

This descriptive correlational study was conducted to examine the mediating effect of disability acceptance on the relationship between family strength and life satisfaction in individuals who have a sibling with a disability. The responses of 144 non-disabled siblings of persons with a disability were analyzed using panel data from the Korea Institute for Persons with Disabilities, and a regression analysis was performed. Family strength and acceptance of disabilities significantly affected the life satisfaction of siblings without disability. Regarding the effect of family strength on life satisfaction, acceptance of a sibling's disability by siblings without disability had a significant mediating effect. Our results suggest that strategies to enhance the acceptance of disabilities and promote family strength are necessary to improve the life satisfaction of individuals without disability as well as their siblings with disabilities. Family-centered interventions are warranted to promote positive acceptance of disabilities.

How my life is unique: Sibling perspectives of autism

LAY ABSTRACT

The impact of autism on the family is an important area of study. Much of the existing literature has focused on the parent perspective, with less emphasis on the experiences of other family members, especially non-autistic siblings. This study aimed to explore the lived experiences of a sample of nine 8- to 17-year-old non-autistic siblings of children and youth on the autism spectrum. We interviewed non-autistic siblings and analysed the written transcripts. Our results revealed the following themes: (1) Role disparities, different expectations; (2) Connection and disconnection; and (3) Our family is (extra)ordinary. Our study findings highlight siblings' unique and collective perspectives regarding their brother or sister on the spectrum within the broader family unit. We discuss the implications of these results on siblings of autistic children and youth.

Neurocognitive and self-reported psychosocial and behavioral functioning in siblings of individuals with neurodevelopmental conditions: a study using remote self-administered testing

OBJECTIVE

This study compared and explored the neurocognitive profiles of siblings of persons with and without neurodevelopmental conditions (NDCs) and associations between objective test performance and self-reported psychosocial functioning.

METHODS

Siblings of persons with and without NDCs (64 NDC and 64 control siblings; mean age 19.88 years, range 11-27 years, 73.44% female, 75.78% White Caucasian) completed self-report questionnaires and self-administered computerized neurocognitive tests of executive functioning (EF). Using Bayesian analyses, we examined cross-sectional associations between self-reported psychosocial functioning and cognitive test performance, and predictors of EF over 15 months.

RESULTS

NDC siblings had poorer working memory, inhibition, attention, and shifting compared to controls, as measured by experimental paradigms on the backward Corsi span, N-Back 2-back task, Stop Signal Task, Sustained Attention to Response Task, and the Wisconsin Card Sorting Test (effect size δ ranging 0.49 to 0.64). Bayesian cross-sectional networks revealed negative emotion reactivity and working memory difficulties were central to the NDC sibling network. Over 15 months, poorer EF (k low test scores) was predicted by negative emotion reactivity, sleep problems, and anxiety, over and above effects of age and subclinical autistic and ADHD traits. Siblings of autistic individuals and persons with fetal alcohol spectrum disorder had higher rates of neurocognitive and psychiatric difficulties than other NDCs and controls (Bayes factors >20).

CONCLUSIONS

Neurocognitive difficulties were associated with transdiagnostic vulnerability to poorer wellbeing in NDC siblings. These findings demonstrate the feasibility of remote online cognitive testing and highlight the importance of individualized prevention and intervention for NDC siblings.

The effectiveness of the serious game "Broodles" for siblings of children with intellectual disabilities and/or visual impairment: study protocol for a randomized controlled trial

BACKGROUND

Siblings of children with disabilities also need support. However, there are only a few evidence-based interventions for these siblings. The current study aims to assess the effectiveness of a newly developed serious game for young siblings of children with intellectual disability (ID) and/or visual impairment (VI). This serious game is hypothesized to improve sibling's quality of life, adjustment to their brother's or sister's disability, and multiple aspects of psychosocial well-being.

METHODS

The intervention consists of a serious game called "Broodles" (in Dutch: "Broedels") that helps children to recognize and deal with thoughts, feelings, and difficult situations. The game consists of eight 20-minute levels that all have the same structure with eight game elements. Each level addresses a domain of sibling quality of life and combines animations, mini-documentaries, fun mini-games, and multiple-choice questions. In addition to the game, siblings make a worksheet after playing each level. In order to support the child, the parents or caregivers receive a short brochure with information and tips. The effectiveness of the intervention will be investigated among a sample of 154 children aged 6-9 years and their parents or caregivers, using a two-arm parallel RCT design. The experimental group will play the serious game "Broodles" over a period of 4 weeks, whereas the control group will be placed on a waiting list. Assessments will take place at three time points: pre-test (week 1), post-test (week 5), and follow-up (weeks 12-14). At each timepoint, children and parents will complete several questionnaires on quality of life and different aspects of psychosocial well-being. In addition, children will make drawings to assess the sibling relationship. Next to that, parents and children will answer closed and open-ended questions about the sibling adjustment to their brother or sister's disability. Finally, parents and children will evaluate the serious game through closed and open-ended questions.

DISCUSSION

This study contributes to the knowledge about sibling interventions and serious games. Additionally, if the serious game is proven to be effective, it will be a readily available, easily accessible, and free of charge intervention for siblings.

TRIAL REGISTRATION

ClinicalTrials.gov, NCT05376007, registered prospectively on April 21, 2022.

Individual-Level Risk and Resilience Factors Associated with Mental Health in Siblings of Individuals with Neurodevelopmental Conditions: A Network Analysis

Siblings of individuals with neurodevelopmental conditions (NDCs) are exposed to unique family environments and experience a range of psychosocial risk and resilience factors. Networks of self-reported risk, resilience, and neuropsychiatric variables were estimated for siblings of individuals with (n = 235) and without (n = 480) NDCs (N = 715, mean age 22.40 years, 76% female, 74% White Caucasian). The NDC group reported more depressive (g = 0.39) and anxious (g = 0.43) symptoms than controls, and 71.5% of the NDC group reported at least one neuropsychiatric diagnosis compared to 36.9% of controls. Self-reported sleep and post-traumatic stress disorders were high amongst NDC siblings. Everyday executive functioning difficulties (cognitive inflexibility, hyperactivity/impulsivity) and emotion dysregulation were the most influential transdiagnostic risk factors for poorer functioning within the NDC group network.

Psychosocial Interventions and Support Groups for Siblings of Individuals with Neurodevelopmental Conditions: A Mixed Methods Systematic Review of Sibling Self-reported Mental Health and Wellbeing Outcomes

Siblings of persons with neurodevelopmental conditions (NDCs) have increased risk of poorer psychosocial functioning. This systematic review evaluated quantitative and qualitative evidence on sibling mental health and wellbeing outcomes following psychosocial interventions and the risk and protective factors associated with post-intervention outcomes. From 2025 identified studies published from 1991 to 2022 across ten databases, 24 studies were included. The largest immediate post-intervention improvements were in self-esteem, social wellbeing and knowledge of NDCs. The most sustained improvements in intervention groups at follow-up periods were in emotional and behavioural adjustment and NDC knowledge. There were positive, but small, differences in favour of the intervention groups on knowledge of NDCs, self-esteem, coping and the sibling relationship as compared to waitlist control groups. Psychosocial interventions for siblings are heterogeneous, and more data, including consideration of unique family circumstances, are needed to improve reporting and replicability, to measure effectiveness and tailor necessary supports.

Risk and resilience factors impacting the mental health and wellbeing of siblings of individuals with neurodevelopmental conditions: A mixed methods systematic review

OBJECTIVE

This pre-registered systematic review synthesised and evaluated the existing literature on self-reported mental health and wellbeing of siblings of individuals with neurodevelopmental conditions (NDCs).

METHODS

From 2437 identified studies published 2000-2022, 81 studies were included: 14 population- or cohort-based, 39 quantitative, 7 mixed method, and 21 qualitative outcome studies.

RESULTS

Seven sibling mental health (any psychiatric disorder, anxiety, depression, bipolar disorder, schizophrenia, internalising and externalising difficulties) and five wellbeing indicators were identified (quality of life, emotional adjustment, social wellbeing, somatic/physical wellbeing, and resilience/growth). Overall, siblings had increased risk of any psychiatric disorder, but they also reported experiences of growth and resilience, primarily in qualitative studies. 41 risk factors and 24 resilience factors associated with these outcomes were identified; the most frequently cited risk factor was symptom severity of the NDC sibling, while the most common resilience factor was adaptive/active coping at the individual sibling level. Studies showed high methodological heterogeneity and 90 different self-report measures were used.

CONCLUSIONS

Sibling mental health indictors are heterogeneous and cumulative risk factors may result in poorer wellbeing. There is a need for consistent reporting of family and sibling characteristics, a strengths-based approach to assessment, and identification of protective and resilience-promoting factors.

General Cognitive Abilities and Psychosocial Development in Children and Adolescents Having a Co-Twin with Down Syndrome

OBJECTIVE

To examine the general cognitive and psychosocial development in children and adolescents having a co-twin with Down syndrome.

STUDY DESIGN

A case control study with an individually matched control group was conducted. Participants included families with twins discordant for Down syndrome as well as with typically developing twins. The group of unaffected co-twins aged 4-16 years was compared with a control group of typically developing twins in terms of general cognitive abilities, behavioral problems, and prosocial behavior. The age and sex and the sex composition of the twins were individually matched. The Sijnders-Oomen nonverbal intelligence test was applied to assess children's IQ, and parents completed the Strength and Difficulties Questionnaire.

RESULTS

The unaffected co-twins did not differ from typically developing twins with respect to their IQ. Concerning the psychosocial development, significantly heightened values in unaffected co-twins twins were only obtained for the conduct problems scale (P = .01; r = 0.45), neither for the total difficulties score nor for the other behavioral problem scales significant differences were found.

CONCLUSIONS

The general cognitive development of the unaffected co-twin of children with Down syndrome is not affected by the presence of their Down syndrome twin. Unaffected co-twins showed increased conduct problems, which is most pronounced in the younger children.

Application of Eco-Friendly Waterborne Polyurethane Composite Coating Incorporated with Nano Cellulose Crystalline and Silver Nano Particles on Wood Antibacterial Board

To endow wood plate with antimicrobial properties, waterborne polyurethane (WPU) coatings incorporated with nano cellulose crystalline (NCC) and silver nanoparticles (AgNPs) were prepared. AgNPs were obtained by the chemical reactions of silver nitrate solution and sodium borohydride solution. The scribe testing results showed that the adhesion of the NCC-WPU composites was improved with the addition of NCC. The adhesion reached its peak when the amount of NCC added was 1%. Scanning electron microscopy (SEM) observation displayed that the NCC dispersed into the WPU without aggregation. NCC was well able to bind WPU and wood cell walls tightly together. Atomic force microscopy (AFM) and ultraviolet-visible (UV-vis) results revealed that WPU/NCC/AgNPs composites were homogeneous. This compatibility was also confirmed by transmission electron microscopy (TEM) analysis. The antibacterial property was improved too. When the adding amount of NCC was 0.5%, and the proportion of silver elements added was 5%, the antibacterial effect was at its best. As a comparison, the antibacterial effect of hybrid colloid without the addition of NCC was far less than that of including NCC. The WPU/NCC/AgNPs composite could be applied as an antibacterial coating in wood materials.