Adult Siblings Who Have a Brother or Sister with Autism: Between-Family and Within-Family Variations in Sibling Relationships

Experiences of siblings of individuals with developmental disabilities: A meta-synthesis of qualitative studies

BACKGROUND

While the impact of developmental disabilities (DD) on the entire family is increasingly recognized, the experiences of typically developing (TD) siblings often remain overlooked. Recently, an understanding of siblings' experiences has been developed through qualitative studies.

OBJECTIVE

This review aims to synthesize existing qualitative evidence regarding the experiences of TD siblings of individuals with DD.

METHODS

A systematic search across four databases (PubMed, CINAHL, PsycINFO, and Web of Science) identified studies reporting empirical qualitative data on the experiences of TD siblings of adolescents and young adults with DD, including English studies from 2014 to 2023. A quality appraisal was performed using the Critical Appraisal Skill Programme (CASP) checklist. The data were synthesized using thematic synthesis.

RESULTS

Nine studies met the inclusion criteria. Six key themes and 13 subthemes were identified from the included articles. These themes included (i) encountered difficulties, (ii) intrapersonal response, (iii) interpersonal interaction, (iv) challenging family dynamics, (v) strategies and support, and (vi) accepting and adapting to my reality.

CONCLUSIONS

This review synthesizes qualitative evidence on the experiences of TD siblings, highlighting how their situation shapes their lives. The findings suggest that TD siblings of individuals with DD experience difficulty due to their sibling's disability. These experiences influence various aspects of their lives, including personal, school/work, and family dynamics, ultimately affecting TD siblings' adaptation processes. Our findings emphasize the need for targeted interventions to support the psychological well-being of TD siblings of individuals with DD.

Correlates of Emotional and Tangible Reciprocity in Adult Siblings of Individuals With Autism

Sibling relationships often involve exchanges of emotional and tangible support. When one sibling has a disability, the nature of the reciprocity of such support may differ from sibling pairs wherein no disability is present. Specifically, when an individual has autism, the nature of emotional and tangible reciprocity is unclear given the potential for a supportive or caregiving role of the sibling without autism. In this study, 256 adult siblings of autistic individuals completed a national survey. Analyses included descriptive statistics describing the nature of reciprocity and hierarchical regressions to identify the correlates of emotional and tangible reciprocity. Overall, participants often reported not giving or receiving much tangible support to/from their autistic sibling while they often gave and, to some extent received, emotional support from their autistic sibling. When the autistic sibling had more asocial behaviors, participants were more likely to provide emotional support than receive it. When participants engaged in more caregiving, they both gave and received more emotional and tangible support. Implications for research and practice are discussed.

Close Relationships Despite the Challenges: Sibling Relationships and Autism

This study explores the experiences of siblings of autistic adolescents within families. Without the novel insights generated from engaging with siblings of autistic adolescents within a qualitative framework, it can be challenging to develop strategies for practicing effectively with this group or structuring interventions with these families. Using a social constructivist approach and qualitative participatory methodology, the exploratory study was conducted using in-depth interviews with ten non-autistic siblings, analyzed via a thematic analysis method. The results reveal a common feeling of uncertainty and apprehension in the relationships, leading siblings to physical and emotional detachment from their autistic brothers or sisters. The research emphasizes the caregiving roles predominantly taken up by sisters, especially when the autistic sibling is a brother with intellectual disability. These roles exert substantial demands, with unclear boundaries suggesting potential role confusion. The findings have important implications for family practice, necessitating the need to address role conflict and promote role clarity. They also underscore the gendered nature of caregiving, advocating for support to sister-siblings in these roles. This study revealed the complexities of sibling relationships in families with a member who is an autistic adolescent sibling. The study suggests interventions that promote open family dialogues for a balanced approach to family roles, providing valuable guidance to practitioners to enhance siblings and family well-being.

Perceived Social Support, Normalization, and Subjective Well-Being Among Family Members of a Child with Autism Spectrum Disorder

The experience of family members of children with autism spectrum disorder (ASD) is not uniform. This study focused on mothers of a child with ASD (Study 1) and typically developing siblings (TDSs) during their emerging adulthood (Study 2). Similarities and differences were explored regarding a proposed model examining the paths of perceived social support (PSS) and normalization (a coping strategy) with subjective well-being: satisfaction with life (SWL) and positive affect (PA). Similarities were found in the paths between PSS, normalization, and SWL, in mothers and TDSs, but differences emerged regarding PA. These findings highlight the importance of PSS as a resource that contributes to normalization and SWL. Professional awareness of family members' PSS and their engagement in normalization is needed.

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.

Examining clinical characteristics of autism and links with parent perceptions of sibling relationship quality

LAY ABSTRACT

Sibling relationship quality is important for the well-being of children on the autism spectrum and their siblings. Little is known, however, about how varied behavior and abilities of children on the autism spectrum may be associated with parent perceptions of domains of sibling relationship quality. We drew data from a subsample of 119 children on the autism spectrum (ages 10-11 years), participating in an ongoing longitudinal study. We looked at how three clinical characteristics (autism symptoms, behavioral difficulties, and communication ability) related to four areas of parent-reported sibling relationship quality (warmth/closeness, conflict, relative status/power, and rivalry). We also examined whether the strength of the association between behavioral difficulties and parent-reported sibling relationship quality was influenced by communication ability. We found that more severe autism symptoms were associated with less conflict and rivalry, and higher communication ability was associated with more relative status/power. We also found that children on the autism spectrum with more behavioral difficulties and weaker communication ability had less warmth/closeness in their sibling relationships. Our findings highlight that it is important to consider autism symptoms, behavioral difficulties, and communication ability, as well as multiple domains of relationship quality, to better understand how parents view the relationships between autistic children and their siblings. Clinically, methods for improving sibling relationships may include teaching conflict resolution strategies to children on the autism spectrum with stronger communication abilities and their siblings, and fostering sibling connection for those with lower communication abilities.

The Quality of Life among Siblings of Autistic Individuals: A Scoping Review

Autism spectrum disorders are a heterogeneous group of neurodevelopmental disorders presenting at a tender age, defined by qualitative deficits in social interactions and communication, thus having a substantial influence on the subject's family unit. Quality of life (QoL) refers to a person's perspective of their life situation, cultural and value background, objectives, expectations, and standards. When focusing on childhood and adolescence, age-related changes should be considered. For this scoping review, the authors used three peer-review literature database sources (PubMed/MEDLINE, Scopus, and ERIC) to delve deeper into components of the QoL of non-autistic siblings of autistic individuals. At the completion of the eligibility phase, 9 studies were included out of the 96 initial records. A total of 4/9 articles (45%) compared the non-autistic siblings of autistic individuals to the siblings of non-autistic people, while 3/9 articles (33%) compared the first group to the non-autistic siblings of patients with other chronic diseases. A total of 5/9 studies adopted specific questionnaires to evaluate QoL. Results from 6/9 articles revealed that the autism condition has varying effects on non-autistic siblings' QoL. According to the considered research, non-autistic siblings of autistic individuals experienced decreased psychological well-being, less perceived social support, increased aggressiveness and conflict-proneness, and higher levels of anxiety and stress impacting their QoL. The present findings provide important implications for additional and more punctual studies in this sector. Furthermore, as being a non-autistic sibling of an autistic individual is commonly undervalued, this review advocates the need to organize and improve support services for siblings.

Predictors of Suicide Attempts of Individuals with Autism and Their Siblings

The occurrence of mood- and anxiety-related conditions among family members of individuals diagnosed with autism spectrum disorder (ASD) increases the risk of suicide attempts and has also created assessment and treatment issues for clinicians and parents. Recorded rates of mental health disorders comorbid with suicide attempts among individuals on the spectrum range from 29% to 52%. The purpose of this study was to investigate the presence of predictors of suicide attempts among sibling dyads (pairs of siblings in which one sibling is on the autism spectrum). Growing evidence in the literature indicates a link between a diagnosis of autism and mental health. A web-based survey was used to collect data from individuals on the spectrum and their siblings. A sample of 144 individuals was finalized for the analyses. Logistic regression analysis was conducted to assess the predictors of suicide attempts in the sample. Depression, anxiety, sexual orientation, and marital status were all used as predictors in the logistic regression analyses. Both levels of anxiety and sexual orientation were found to be significant predictors for suicide attempts. Recommendations for future research, assessment, and treatment are presented.

Sibling Adjustment and Sibling Relationships Associated with Clusters of Needs in Children with Autism: A Novel Methodological Approach

We tested a novel methodological approach to examine associations between characteristics of autistic children and outcomes for siblings. Cluster analysis was used to define five groups of children with autism (n = 168) based on autism symptoms, adaptive behavior, pro-social behavior, and behavior problems. Primary and secondary parent carers, and siblings themselves, reported on sibling relationship quality and psychological adjustment. Siblings of autistic children with a mild symptom profile, high levels of adaptive skills, but high internalizing and externalizing problems had the highest level of these problems themselves and more conflict in their relationship. Siblings of autistic children with the most complex support needs (adaptive skills deficits, severe autism symptoms) reported lower warmth relationships but not elevated internalizing and externalizing problems.

Examination of the Effectiveness and Acceptability of a Play-Based Sibling Intervention for Children with Autism: A Single-Case Research Design

Complementary and reciprocal interactions are a defining feature of sibling relationships for young children. However, the social and communication difficulties of children with autism spectrum disorder (ASD) can make reciprocal play more difficult and play between siblings can be less rewarding. Sibling play can serve an important role in intervention and family cohesiveness, but there is no consistent method for involving siblings in intervention benefitting the sibling dyad. This study evaluated a novel treatment package including training siblings on play strategies to increase positive sibling play in combination with a sibling support group to offer social support for the neurotypical sibling (NT). The effects of the treatment package on NT sibling play and fidelity of implementation of naturalistic play strategies was examined using a concurrent multiple-baseline design across six dyads, five of whom completed the intervention. After behavior skills training, all NT siblings increased the number of strategies they used, and increased the frequency of initiations towards their sibling with ASD. In addition, the percentage of reciprocal play between siblings increased. Generalization probes and follow-up probes demonstrated above-baseline levels of performance across most dyads, indicating that the skills learned generalized across other toys and were maintained over time. Only three of the sibling support group sessions were completed due to the COVID-19 pandemic. Although the effectiveness of the sibling support group cannot be determined, social validity questionnaires suggest siblings and parents valued and liked the support group.

Supplementary Information

The online version contains supplementary material available at 10.1007/s43494-021-00043-5.

Challenges and Growth: Lived Experience of Adolescents and Young Adults (AYA) with a Sibling with ASD

Adolescent and young adult (AYA) siblings of individuals with autism experience unique challenges that can promote both growth and emotional maladjustment. This study explored sibling and parent reports of siblings' lived experiences and identified learning, stressors, and concerns from those experiences. 20 neurotypical (NT) AYA siblings (ages 13-24), and 21 parents were interviewed. Themes that emerged from the data analysis included: (1) learning, empathy, and compassion (2) relationship between the degree of functional impairment and the nature of the sibling relationship; (3) reluctance to share information about siblings with peers; (4) hypervigilance associated with unpredictable behavior; (5) worries and concerns about the future. These findings contribute to the existing literature on the impact and nature of neurotypical siblings' lived experience.

Seeing the siblings: Gender differences in emerging-adult siblings of individuals with autism spectrum disorder

BACKGROUND

The present study focused on typically developing siblings (TDS) in emerging adulthood of individuals with autism spectrum disorder (ASD) and sought insight into how gender may interact with positive and negative affects in this population. In addition, we aimed to explore the gender differences as a moderator in the link between personal resources (i.e., family cohesion and flexibility coping strategy) and positive and negative affects among such TDS. An understanding of gender differences in this population should prove relevant to the development of potential interventions.

METHOD

A total of 116 emerging adult (age 18-29) TDS of younger siblings with ASD (the latter were under the age of 18 at the time of data collection), 80 females and 36 males, participated in the study. All participants completed self-report measures.

RESULTS

Female TDS reported higher negative affect than male TDS, while no differences emerged regarding positive affect. Female siblings reported higher family cohesion and higher flexibility in the forward-focused subscale of flexibility coping strategy, but not in its trauma-focused subscale, compared to male siblings. Additionally, gender moderates the links between family cohesion and positive affect but not negative affect. Gender also moderates the association between flexibility and negative affect, but not positive affect.

CONCLUSIONS

This study highlights the gender differences among TDS in emerging adulthood of individuals with ASD in relation to negative affect, family cohesion, and flexibility coping strategy. Understanding the gender-specific internal and external experiences of TDS as interplaying with their resources, at the unique developmental stage of emerging adulthood, may afford to identify TDS in need and to suggest potential interventions.

Improving the Validity and Generalizability of Adult Autism Research Through Incorporating Family and Cultural Contexts

The relatively nascent empirical knowledge base regarding autism in adulthood provides an opportunity to adopt a contextual approach that conceptualizes autism features, outcomes, and supportive services as interactions between the characteristics of the condition and contextual factors across the life course. Although a contextual approach encompasses many aspects of a person's identity and social ecology, we focus here on the closely interrelated family and cultural contexts, which have been poorly integrated into adult autism research. We argue that designing studies with a priori attention to context (e.g., family and culture) will improve the relevance and comprehensiveness of findings, which in turn will improve construct validity and provide a more accurate understanding of autism-related outcomes in adulthood. Similarly, designing and/or selecting measures that have been validated with culturally and linguistically diverse samples will improve the utility of findings and reduce spurious or null effects. More contextually informed methodologies will lead to improved generalizability and practical applications of findings. We offer concrete guidance regarding how to increase the social ecological perspective within adult autism research as it relates to study conceptualization, methodology, and measurement.

The Sisters' Advantage? Broader Autism Phenotype Characteristics and Young Adults' Sibling Support

Siblings often oversee the well-being of an adult with autism spectrum disorder (ASD). The current study contributes to the literature by examining correlates of support provided to siblings in young adulthood in the context of the broader autism phenotype (BAP). Young adults (n = 866; M_age = 25.43, SD = 2.54; 55% female) reported on support provided to and the BAP characteristics of 1198 different siblings (M_age = 28.56, SD = 8.87; 50% female). Findings showed that young adults provided more emotional and practical support to sisters that they perceived to be higher in BAP characteristics. These findings suggest that sisters who have characteristics associated with ASD may be at an advantage in receiving support.