Prediction of childhood ADHD symptoms to quality of life in young adults: adult ADHD and anxiety/depression as mediators.
Persistent adult ADHD and anxiety or depression—not the childhood diagnosis—drive poor adult quality of life.
01Research in Context
What this study did
Researchers followed young Taiwanese men with childhood ADHD into adulthood. They asked: do adult ADHD and anxiety or depression explain why these men report poor quality of life?
They used a mediation model to test if adult symptoms carry most of the damage.
What they found
Adult ADHD plus anxiety or depression explained over 70 percent of the link. Childhood ADHD alone did not predict adult quality of life once these adult symptoms were counted.
In plain words, the problems that stick around—not the old diagnosis—shape how life feels.
How this fits with other research
Liang et al. (2021) looked at mothers of kids with ADHD in Taiwan. Maternal depression, not child severity, drove moms’ low quality of life. Both studies show that mood symptoms, not ADHD labels, erode well-being.
Zaguri-Vittenberg et al. (2025) studied adolescents with ADHD plus motor problems. Adding a second condition deepened quality-of-life hits. Together, the papers say co-occurring issues—anxiety, depression, or motor delays—multiply the damage.
Abu Raya-Ghanayem et al. (2025) found teens who see ADHD as a positive part of their identity enjoy better quality of life. This sounds opposite to the negative story, but it isn’t. Yang et al. (2013) measured men who still had full symptoms; Noor measured identity, not symptom level. When symptoms stay strong, mood matters most. When identity is positive, social life improves.
Why it matters
If you serve adults with ADHD, screen for anxiety and depression first. Treating these co-occurring conditions may lift quality of life more than targeting ADHD symptoms alone. Share this finding with parents and clients to set clear priorities.
Want CEUs on This Topic?
The ABA Clubhouse has 60+ free CEUs — live every Wednesday. Ethics, supervision & clinical topics.
Join Free →Add a brief anxiety and depression screener to your intake for adult ADHD clients.
02At a glance
03Original abstract
Childhood attention-deficit/hyperactivity disorder (ADHD) symptoms may persist, co-occur with anxiety and depression (ANX/DEP), and influence quality of life (QoL) in later life. However, the information about whether these persistent ADHD and ANX/DEP mediate the influence of childhood ADHD on adverse QoL in adulthood is lacking. This study aimed to determine whether adult ADHD symptoms and/or ANX/DEP mediated the association between childhood ADHD and QoL. We assessed 1382 young men aged 19-30 years in Taiwan using self-administered questionnaires for retrospective recall of ADHD symptoms at ages 6-12, and assessment of current ADHD and ANX/DEP symptoms, and QoL. We conducted mediation analyses and compared the values of mediation ratio (PM) by adding mediators (adult ADHD and ANX/DEP), individually and simultaneously into a regression model with childhood ADHD as an independent variable and QoL as a dependent variable. Our results showed that both adult ADHD and ANX/DEP symptoms significantly mediated the association between childhood ADHD and QoL (PM=0.71 for ANX/DEP, PM=0.78 for adult ADHD symptoms, and PM=0.91 for both). The significance of negative correlations between childhood ADHD and four domains of adult QoL disappeared after adding these two mediators in the model. Our findings suggested that the strong relationship between childhood ADHD and adult life quality can be explained by the presence of persistent ADHD symptoms and co-occurring ANX/DEP. These two mediators are recommended to be included in the assessment and intervention for ADHD to offset the potential adverse life quality outcome in ADHD.
Research in developmental disabilities, 2013 · doi:10.1016/j.ridd.2013.06.011