Abstract
BackgroundInsecure attachment is associated with mental health morbidity. We explored associations between parent and offspring attachment style in a longitudinal study of families with a depressed parent. MethodsParents (N = 169) with a DSM-IV mood disorder and their adult offspring (N = 267), completed the Adult Attachment Questionnaire at one or more time points during up to 9.7 years of follow-up. Linear mixed effects models explored associations between parent and offspring anxious and avoidant attachment scores. Residualized models accounted for parent and offspring depression severity. ResultsAvoidant attachment scores were associated between parents and offspring with (p = .034) and without (p = .012) adjustment for baseline age and sex of parent and offspring. Depressed father-offspring relationships showed more avoidant attachment in offspring compared to depressed mother-offspring pairs (p = .010). After accounting for depression severity, parent average residualized avoidant attachment scores did not significantly correlate with those of offspring (unadjusted p = .052; adjusted p = .085), though the effect sizes did not change substantially, and 75 % of the correlation was retained. Parent-son relationships exhibited stronger avoidant attachment correlations compared to parent-daughter pairs (p = .048). LimitationsSmall sub-sample of fathers, parent and offspring assessments not always completed at the same time, and use of a self-report attachment style instrument. ConclusionsFamilial transmission of insecure avoidant attachment, a risk factor for negative mental health outcomes, merits research as a potential treatment target. In this preliminary study, its transmission to offspring seemed mostly independent of depression. Depressed fathers and their sons may deserve focus to reduce insecure avoidant attachment and improve clinical course.
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