Evidence from Western developed countries has consistently found that children with sibling(s) showed better perspective-taking (PT) than only children. However, this was not the case in developing countries like China. Our study investigates whether the potentially hindering effect of having sibling(s) on PT persists into adulthood within the context of contemporary Chinese culture. We employed self-report questionnaires to measure PT, perceived parental care, and sibling relationships among Chinese young adults (21.93 ± 2.35 years old). Our findings indicate that in China, (1) having sibling(s) hinders individuals\' PT in adulthood, (2) a potential mechanism for this effect is that having sibling(s) leads individuals to perceive less parental care during early life, and (3) for those with sibling(s), higher sibling intimacy can enhance PT, particularly among older sister-younger brother pairs. These results suggest that in developing countries such as China, while sibling(s) may diminish PT to some extent, factors like parental care and sibling intimacy can serve as protective factors that mitigate the negative impacts of sibling(s) on PT.

Premature aging syndrome is a rare condition characterized by premature aging and death. The exact pathogenic mechanisms underlying most premature aging syndromes are poorly understood. Here, we describe two sibling cases of premature aging syndrome of unknown etiology, with no identified significant genetic mutation, with the primary symptom of a prematurely aged appearance, and a chief complaint of marked short stature. The first patient was an eight-year-old Cambodian boy born to a third-degree consanguineous marriage. He visited our hospital with the chief complaint of short stature. His development was originally normal until he developed pneumonia when he was three years old. Neither of his parents had any symptoms or family history of similar abnormalities, except for his five-year-old sister, who also has a markedly short stature of 80.4 cm and a low body weight of 8.7 kg. Her face showed distinct macrognathia and relative macrocephaly. The brother\'s low-density lipoprotein cholesterol level was high (198 mg/dl), and brain magnetic resonance angiography and carotid ultrasound revealed severe atherosclerotic changes. Whole-exome sequencing results were insignificant for both patients. This case report aims to elucidate the pathogenesis and treatment of progeria. This report indicates the possibility of an unidentified type of premature aging syndrome.

Adolescence is a challenging time at baseline, and a sibling receiving end-of-life care can alter an adolescent\'s life irrevocably. It is imperative for the medical team to understand the unique needs and perspectives of such an adolescent sibling. This in turn facilitates the anticipation of an adolescent\'s grief response, and allows for parents to be appropriately guided. However, more can be done to evaluate the needs of adolescent siblings and improve their support. This can be through establishing a validated needs-based questionnaire, empowering families and the multidisciplinary team to engage siblings, and diverting resources toward culturally sensitive support groups for siblings with critical illness. A framework to involve key players in the adolescent\'s circle is presented.

Younger siblings (SIBS) of children with autism exhibit a wide range of clinical and subclinical symptoms including social, cognitive, language, and adaptive functioning delays. Identifying factors linked with this phenotypic heterogeneity is essential for improving understanding of the underlying biology of the heterogenous outcomes and for early identification of the most vulnerable SIBS. Prevalence of neurodevelopmental (NDD) and neuropsychiatric disorders (NPD) is significantly elevated in families of children with autism. It remains unknown, however, if the family history associates with the developmental outcomes among the SIBS. We quantified history of the NDDs and NPDs commonly reported in families of children with autism using a parent interview and assessed autism symptoms, verbal, nonverbal, and adaptive skills in a sample of 229 SIBS. Multiple regression analyses were used to examine links between family history and phenotypic outcomes, whereas controlling for birth year, age, sex, demographics, and parental education. Results suggest that family history of schizophrenia, depression, anxiety, bipolar disorder, and intellectual disability associate robustly with dimensional measures of social affect, verbal and nonverbal IQ, and adaptive functioning in the SIBS. Considering family history of these disorders may improve efforts to predict long-term outcomes in younger siblings of children with autism and inform about familial factors contributing to high phenotypic heterogenetity in this cohort.

UNASSIGNED: Care burden and sense of coherence (SOC) can facilitate an understanding of how family members interpret their caregiving experiences regarding a relative with psychosis. In informal caregiving, understanding siblings\' experiences in this regard is necessary to mitigate negative emotions and strengthen positive ones. This study investigated whether care burden and SOC mediate the relationship between the disabilities of patients with psychosis and their siblings\' emotions.
UNASSIGNED: A nationwide online survey was used to screen and recruit adult siblings of patients with psychotic disorders. The patients\' disabilities in their work lives, socializing, and family communication, the siblings\' care burden and SOC, and the siblings\' positive and negative emotions were assessed. Structural equation modeling (SEM) was employed to test the path model that illustrated the mediating effects of care burden and SOC on patients\' disabilities and siblings\' emotions.
UNASSIGNED: The sample included 237 siblings aged 42.3 years (mean) with a male-to-female ratio of 0.88 and 237 patients with schizophrenia (80.2%) or schizoaffective disorder (19.8%). In the SEM analyses, care burden connected each of the three disabilities with the two types of emotions through the pathways in which care burden positively predicted both negative and positive emotions. Additionally, SOC functioned as a mediator between disability in family communication and both types of emotions.
UNASSIGNED: Siblings\' negative emotions should be alleviated through interventions aimed at suppressing the care burden and enhancing SOC to address disabilities in patients\' socializing and family communication. Nevertheless, care burden might contribute to their positive emotions.

[This corrects the article DOI: 10.3389/fncel.2022.1096872.].

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.

Despite rising numbers of only children in China, little is known about their family dynamics and well-being in adulthood-for example, how often they marry other only children and whether those in siblingless families have worse or better health than others. Theoretical expectations produce opposing predictions: siblings might provide social and emotional support and reduce parental caregiving pressures, but only children might receive more support from parents and grandparents. Using the 2010 China Family Panel Study, we examine marital sorting on Chinese adults\' number of siblings and test whether sibling availability and sibling sorting are associated with subjective physical and mental health. Despite general perceptions that China has an exceedingly high prevalence of adults with no siblings that might produce very small families, results demonstrate a low prevalence of siblingless couples (i.e., both spouses are only children). Married adults with no siblings or siblings-in-law have better subjective physical health but similar levels of subjective mental health relative to their counterparts with siblings. The health advantages of siblingless marital unions are greater for rural and female adults. Declining sibling prevalence in China will shape future family demographic dynamics but appears less detrimental to population health than sometimes assumed.

BACKGROUND: In families of children with a neurodisability, siblings have unique experiences that can shape their identity. There is limited information about the developmental process of how siblings form their identity. This study aims to understand the identity construction of young siblings who have a sibling with a neurodisability.
METHODS: As part of a patient-oriented research program, we engaged with our Sibling Youth Advisory Council in Canada. In this qualitative case study, data from semi-structured interviews augmented by photo elicitation and graphic elicitation of relational maps were analyzed using reflexive thematic analysis.
RESULTS: Nineteen sibling participants (median age = 19 years, range = 14-33 years) reflected on the uniqueness of their role during childhood. During adolescence and emerging adulthood, they became closer with their sibling with a neurodisability and increased communication with their parents about how to care for their sibling with a neurodisability. These experiences influenced how they explored and began to reconcile their sibling identity with their professional and social identities.
CONCLUSIONS: Siblings of youth with a neurodisability discover their unique identity and require support in this developmental process. Future interventions could evaluate how supports for siblings can have an impact on the positive development of their identity.

UNASSIGNED: Mental and cognitive health is crucial to ensure well-being in older age. However, prolonged periods of stress, grief, and bereavement might compromise mental health balance, leading to profound changes. This study investigated the sex-stratified associations between midlife bereavement experiences (e.g. sibling loss, spousal loss, and multiple losses) and late-life depression (LLD) and cognitive impairment.
UNASSIGNED: Linked data from the Swedish Level-of-Living Survey and the Swedish Panel Study of Living Conditions of the Oldest Old (SWEOLD) were used. Multiple logistic regressions were performed to examine the associations between midlife bereavement and LLD (n = 1078) and cognitive impairment (n = 995), separately.
UNASSIGNED: Sibling loss and multiple losses in midlife were associated with lower odds of LLD, especially among women. Among men, sibling loss in midlife was associated with lower odds of cognitive impairment, while the experience of two losses among women suggested an increased (but non-significant) risk of cognitive impairment. Interaction analyses did not show significant effects between bereavement and gender on LLD and cognitive impairment.
UNASSIGNED: Midlife bereavement might have gendered implications on LLD and cognitive impairment, but associations need to be confirmed by well-powered studies. Further research is warranted to elucidate the association between multiple midlife losses and reduced LLD risk.