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Risk factors for comorbid oppositional defiant disorder in attention-deficit/hyperactivity disorder
Siri D S Noordermeer1, Marjolein Luman2, Wouter D Weeda3
1Clinical Neuropsychology Section, Vrije Universiteit Amsterdam, Van der Boechorststraat 1, 1081 BT, Amsterdam, The Netherlands. s.d.s.noordermeer@vu.nl.
Insights
Identifying risk factors for attention-deficit/hyperactivity disorder (ADHD) with oppositional defiant disorder (ODD) is crucial. Adverse life events, parental ADHD, criticism, peer affiliation, and socioeconomic status are key predictors for ADHD + ODD.
Area of Science:
- Child and Adolescent Psychiatry
- Developmental Psychology
- Behavioral Neuroscience
Background:
- Oppositional defiant disorder (ODD) frequently co-occurs with attention-deficit/hyperactivity disorder (ADHD).
- The co-occurrence of ADHD and ODD (ADHD + ODD) is associated with a significantly poorer prognosis.
- Identifying risk factors for ADHD + ODD is vital for developing effective early interventions.
Purpose of the Study:
- To investigate pre- and perinatal, transgenerational, and postnatal risk factors associated with ADHD + ODD.
- To differentiate risk factors for ADHD-only versus ADHD + ODD.
- To inform the development of targeted preventive strategies for comorbid ODD in ADHD.
Main Methods:
- A case-control study design was employed, matching participants on age, gender, and ADHD subtype.
- Risk factors assessed included perinatal variables (e.g., birth weight, maternal smoking), transgenerational factors (parental ADHD, warmth, criticism), and postnatal factors (SES, adverse life events, peer affiliation).
- Three models were analyzed: ADHD-only vs. controls, ADHD + ODD vs. controls, and ADHD + ODD vs. ADHD-only.
Main Results:
- Adverse life events and parental ADHD were identified as risk factors for both ADHD-only and ADHD + ODD.
- Higher levels of adverse life events were a stronger predictor for ADHD + ODD compared to ADHD-only.
- Parental criticism, deviant peer affiliation, and lower parental socioeconomic status (SES) were significant risk factors specifically for ADHD + ODD.
- Maternal smoking during pregnancy was a minor risk factor for ADHD-only, while higher birth weight was a minor risk factor for ADHD + ODD.
Conclusions:
- The findings underscore the significant role of adverse life events, parental factors (ADHD, criticism), peer affiliation, and SES in the development of comorbid ODD in individuals with ADHD.
- These identified risk factors provide a foundation for developing targeted preventive interventions.
- Parent-focused interventions are recommended to address these critical developmental influences.
Abstract:
Oppositional defiant disorder (ODD) is highly prevalent in attention-deficit/hyperactivity disorder (ADHD). Individuals with both ADHD and ODD (ADHD + ODD) show a considerably worse prognosis compared with individuals with either ADHD or ODD. Therefore, identification of risk factors for ADHD + ODD is essential and may contribute to the development of (early) preventive interventions. Participants were matched for age, gender, and ADHD-subtype (diagnostic groups), and did not differ in IQ. Predictors included pre- and perinatal risk factors (pregnancy duration, birth weight, maternal smoking during pregnancy), transgenerational factors (parental ADHD; parental warmth and criticism in diagnostic groups), and postnatal risk factors (parental socioeconomic status [SES], adverse life events, deviant peer affiliation). Three models were assessed, investigating risk factors for ADHD-only versus controls (N = 86), ADHD + ODD versus controls (N = 86), and ADHD + ODD versus ADHD-only (N = 90). Adverse life events and parental ADHD were risk factors for both ADHD + ODD and ADHD-only, and more adverse life events were an even stronger risk factor for comorbid ODD compared with ADHD-only. For ADHD + ODD, but not ADHD-only, parental criticism, deviant peer affiliation, and parental SES acted as risk factors. Maternal smoking during pregnancy acted as minor risk factor for ADHD-only, while higher birth weight acted as minor risk factor for ADHD + ODD. No effects of age were present. Findings emphasise the importance of these factors in the development of comorbid ODD. The identified risk factors may prove to be essential in preventive interventions for comorbid ODD in ADHD, highlighting the need for parent-focused interventions to take these factors into account.
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