The purpose of this study is to examine the mediating role of parenting stress (both parental distress and stress due to dysfunctional interactions in the mother-daughter relationship [PSDI]) in the link between childhood attention-deficit/hyperactivity disorder (ADHD) status and several important young adult outcomes. The diverse sample comprised 140 girls with ADHD and 88 age- and ethnicity-matched comparisons, evaluated at ages 6-12 years and followed prospectively for five years (M age = 14.2) and 10 years (M age = 19.6). The PSDI experienced by a mother during her daughter's adolescence mediated the link between her daughter's childhood ADHD status and adult externalizing and internalizing symptoms. PSDI also mediated the link between ADHD status and young adult nonsuicidal self-injury and had an indirect effect in the relation between childhood ADHD and young adult depressive symptoms. The mediating role of PSDI with respect to internalizing symptoms and depressive symptoms remained in place even when covarying adolescent internalizing/depressive symptoms. Parenting stress, particularly related to maternal perceptions of dysfunctional interactions with adolescent daughters, serves as a key mediator in the association between childhood ADHD status and important domains of young adult functioning. Minimizing parenting stress and dysfunctional mother-daughter interactions during adolescence might reduce the risk of adverse adult outcomes for girls with ADHD.

Using an all-female sample, we examined trajectories of executive functioning (EF) performance from childhood through emerging adulthood-and their prediction of key emerging-adult outcomes. One hundred forty girls carefully diagnosed with attention deficit/hyperactivity disorder (ADHD) and 88 matched comparison girls were administered EF measurements assessing global EF, response inhibition, and verbal working memory during childhood (M age = 9.5 years), adolescence (M age = 14.1 years), the earliest years of adulthood (M age = 19.6 years), and the end of emerging adulthood (M age = 25.6 years). Retention rates were excellent. Hierarchical linear modeling was used to estimate growth curves for each EF measure. The linear EF slopes were then used to explore how changes in EF interacted with each participant's persistence/remission of ADHD over time to influence behavioral, emotional, and academic impairment in emerging adulthood. Although all women experienced absolute improvements in EF performance across time, women with histories of ADHD consistently lagged behind comparison women, even if their ADHD symptoms had remitted by early adulthood. However, EF performance over time did not significantly influence the link between ADHD status and (a) maternal reports of associated behavioral and emotional impairment or (b) objective measures of academic achievement. These findings indicate that EF deficits should be considered when developing and implementing treatments for ADHD through emerging adulthood. Future research should be aimed at understanding the mechanisms behind these observed trajectory differences.

Objective

To examine the aspects of parenting stress-parental distress [PD] and parental stress due to dysfunctional interactions [PSDI]-reported by mothers of girls with attention-deficit/hyperactivity disorder (ADHD) in both childhood and adolescence and to understand their associations with internalizing and externalizing symptoms in adolescence.

Design

The diverse sample comprised 120 girls with ADHD and 81 age- and ethnicity-matched comparison girls, evaluated at ages 6-12 years and followed prospectively for 5 years. Basic demographics, oppositionality, childhood behavioral outcomes and symptoms, and key parenting practice were covaried in the analyses.

Results

Longitudinally, PD during the participants' childhood was positively associated with adolescent externalizing and internalizing behaviors, even when statistically controlling for parallel childhood behaviors. PSDI during adolescence was associated with contemporaneous adolescent depressive symptoms and externalizing behaviors, but PD was associated with only internalizing behaviors. With respect to moderation by diagnostic group, PSDI (in childhood) was associated with adolescent internalizing symptoms only in girls with ADHD. However, associations between PD in childhood and internalizing behaviors were stronger in the comparison than the ADHD sample.

Conclusions

Minimizing early dysfunctional interactions might reduce internalizing behaviors in girls with ADHD. Interventions targeting parental distress may be beneficial for girls, regardless of ADHD status.