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Non-psychopathology Related Outcomes Among Siblings of Individuals with Mental Illness: A Systematic Review. Shivers Carolyn M,Textoris Sophia Clinical child and family psychology review The current study consists of a systematic review of the quantitative literature on siblings of individuals with mental illness (MI). Despite the prevalence of mental illness, little is known about how siblings are specifically affected in areas of psychosocial, emotional, and behavioral outcomes. The review yielded 56 studies that examined outcomes such as behavior problems, the sibling relationship, caregiving experiences, and knowledge of mental illness among siblings. The majority of studies from the initial search were focused on siblings-as-comparison group, examining siblings for risk factors for developing mental illness. In total, the study samples covered a sibling age range of 6-81 and a patient age range of 4-84. About half (k = 27) of the included studies had samples primarily composed of siblings of individuals with schizophrenia, leaving other MI diagnoses such as depression, anxiety, and mood disorders underrepresented. However, results from comparison studies were mixed-half found that the MI-Sibs had fewer negative outcomes than the comparison group, and half found that MI-Sibs had more negative outcomes. Multiple factors, including female sibling gender, greater severity of MI symptoms, and belief in the patient's ability to control their own behavior, were all related to more negative outcomes for MI-Sibs. Future work will focus on expanding the representativeness of MI-Sibs samples and analyzing experiences of both the sibling and the individual with MI. 10.1007/s10567-020-00331-3
Aetiology of shame and its association with adolescent depression and anxiety: results from a prospective twin and sibling study. Journal of child psychology and psychiatry, and allied disciplines BACKGROUND:Shame is considered a maladaptive self-conscious emotion that commonly co-occurs alongside depression and anxiety. Little is known, however, about the aetiology of shame and its associations with depression and anxiety. We estimated, for the first time, genetic and environmental influences on shame and on its associations with depression and anxiety in adolescence. METHODS:The sample was twin and sibling pairs from the Genesis 1219 Study (Time 1, N = 2,685; males 42.8%, M  = 14.95, SD = 1.67, age range: 12-21; Time 2, N = 1618; males 39.7%, M  = 16.97, SD = 1.64, age range: 14-23). Participants completed validated questionnaires to measure shame (at Time 1), depression and anxiety (at Times 1 and 2). RESULTS:Shame was moderately to strongly associated with concurrent depression and anxiety. Prospectively, shame was significantly associated with an increase in depression, but not anxiety. Genetic analyses revealed that shame was moderately heritable with substantial nonshared environmental influence. The associations between shame and concurrent depression and anxiety were primarily accounted for by overlapping genetic influences. Prospectively, the association between shame and later depression was primarily accounted for by genetic and nonshared environmental influences shared with earlier depression. The unique association between shame and later depression was mostly explained by common nonshared environmental influences. CONCLUSIONS:The findings offer novel evidence regarding aetiology of shame-although moderately heritable, shame in adolescents may also result from nonshared environmental factors. Genetic and nonshared environmental influences contribute to the co-occurrence of shame with depression and anxiety. 10.1111/jcpp.13465
Bidirectional association between migraine and depression among probands and unaffected siblings: A nationwide population-based study. Chen Mu-Hong,Pan Tai-Long,Lin Wei-Chen,Huang Kai-Lin,Hsu Ju-Wei,Li Cheng-Ta,Tsai Shih-Jen,Su Tung-Ping,Chen Tzeng-Ji,Bai Ya-Mei Journal of affective disorders BACKGROUND:Evidence suggests a bidirectional association between migraine and depression in individuals and in twins. However, whether a bidirectional association between migraine and depression also occurs among siblings (probands and unaffected nontwin siblings) remains unknown. METHODS:Using the Taiwan National Health Insurance Research Database, we examined the data of 1504 probands with migraine, 1595 unaffected siblings, and 6380 nonmigrainous controls born before 2000 to identify new-onset depression for the period between 1996 and 2011. Conversely, 31824 probands with depression, 34325 unaffected siblings, and 137300 nondepressive controls were examined for the identification of new-onset migraine. RESULTS:Logistic regression analyses demonstrated that compared with the controls, patients with migraine (odds ratio [OR]: 4.09; 95% confidence interval [CI]: 3.75-4.46) and unaffected siblings (OR: 1.40; 95% CI: 1.24-1.58) were more likely to develop depression during the follow-up period. Moreover, patients with depression and unaffected siblings had a 4.13-fold (95% CI: 3.18-5.36) and 1.45-fold (95% CI: 1.03-2.05) increased risk of migraine. DISCUSSION:The bidirectional association between migraine and depression among probands and unaffected siblings suggests a familial coaggregation of these two conditions. Additional studies are required to investigate the genetic and environmental etiologies for this coaggregation. 10.1016/j.jad.2020.10.056
Parental Bonding and Relationships with Friends and Siblings in Adolescents with Depression. International journal of environmental research and public health According to attachment theory, the quality of the early child-parent bond determines the child's interpersonal relationships later in life. Utilising data from The First Experimental Study of Transference Work-In Teenagers (FEST-IT), the current paper investigated the connection between the self-reported quality of bonding with mother and father and the self-reported importance of relationships with friends and siblings in adolescents with depression. The scales employed were the Parental Bonding Instrument (PBI) and the Adolescent Relationship scale (ARS). A Pearson's correlation tested the relationship between the reported levels of maternal and paternal care and control, and the reported importance of friendship and relationship with siblings. Results revealed a statistically significant negative correlation between high levels of maternal control and importance of friendship, and a statistically significant positive correlation between high levels of paternal care and importance of relationships with siblings. The results are in line with Bowlby's theory of attachment. 10.3390/ijerph19116530