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Siblings of children with chronic disorders are at increased risk of experiencing family communication problems and poorer mental health. We assessed initial feasibility, acceptability, and outcomes of SIBS; a manual-based group intervention for siblings and parents of children with chronic disorders, aiming to improve parent-sibling communication and sibling mental health. Ninety-nine siblings aged 8-16 years (M = 11.5 years, SD = 2.0; 54.5% girls) and parents (63.6% mothers) of children with chronic disorders participated in three separate group sessions for siblings and parents and two joint sessions with integrated sibling-parent dialogues. We assessed participant satisfaction post-intervention and checked for group leader manual adherence. We measured the following outcomes at baseline, three, and six months post-intervention in an open trial:(1) parent-sibling communication quality; (2) sibling emotional and behavioral problems; (3) sibling adaptation to the disorder; and (4) sibling disorder knowledge. Using growth curve modeling, we found significant improvement in parentsibling communication quality (p = 0.001), emotional and behavioral problems (p = 0.009), adaptation to the disorder (p = 0.003), and disorder knowledge (p = 0.000) from baseline to follow-up (effect sizes d = 0.22 to 0.64). Improvement in sibling-reported emotional and behavioral problems and adaptation to the disorder was partly explained by communication quality. User satisfaction was high and manual adherence was good. Our evaluation yields support for the SIBS intervention, with initial evidence of acceptability, feasibility, and beneficial outcomes. Our study suggests targeting parent-sibling communication may be a beneficial way of improving siblings' mental health.

Siblings' emotional experiences are characterized by diverse and contradictory feelings. Interventions to promote emotional health in siblings of children with rare disorder should address this complexity.

The authors tested the hypothesis that experiencing sexual coercion and engaging in sexually coercive behavior are positively associated in a representative sample totaling almost 4,000 Swedish or Norwegian male high school students (estimated response rate 80%). In both surveys, youths who had experienced sexual coercion were approximately three times more likely to engage in sexually coercive behavior than those without such experience (10%-12% vs. 4%). The association between sexual coercion experience and sexually coercive behavior was attenuated but remained significant and moderately strong in both surveys when controlling for nonsexual antisocial behavior, substance use, and noncoercive sexual behavior in multivariate logistic regression models. The population attributable fraction (proportion of sexually coercive behavior that can be explained by sexual coercion experience) was 18%-25%. The findings support a robust link between having been sexually coerced and engaging in coercive sexual behavior in the general population.