Implications of changes for the field: ADHD.

This article provides a thorough discussion of the proposed DSM-5 changes and their implications for current and future approaches to assessment, identification, and service delivery for children and adolescents with ADHD. Educational and clinical implications are discussed with special attention to the individual impact of the changes, diagnostic prevalence rates, and associated societal costs. Developmental period is considered as an important factor in the potential impact of the DSM-5 changes. The authors conclude that the DSM-5 proposed revisions may improve diagnostic sensitivity and specificity; yet the overall impact of these changes remains largely unknown as many were not empirically validated. The authors suggest that the cumulative impact of the set of changes be considered when finalizing the DSM-5 revisions.

A discrete choice conjoint experiment to evaluate parent preferences for treatment of young, medication naive children with ADHD.

The current study examined treatment preferences of 183 parents of young (average age = 5.8 years, SD = 0.6), medication naive children with ADHD. Preferences were evaluated using a discrete choice experiment in which parents made choices between different combinations of treatment characteristics, outcomes, and costs. Latent class analysis yielded two segments of parents: (a) medication avoidant parents constituted 70.5% of the sample whose treatment decisions were strongly influenced by a desire to avoid medication, and (b) outcome oriented parents constituted 29.5% of the sample whose treatment decisions were most influenced by a desire for positive treatment outcomes. Parents in the outcome oriented segment were more stressed and depressed, had lower socioeconomic status and education, were more likely to be single parents, and had more disruptive and impaired children. Simulations predicted that parents would prefer treatments with behavior therapy over treatments with stimulant medication only.

Late adolescent and young adult outcomes of girls diagnosed with ADHD in childhood: an exploratory investigation.

OBJECTIVE: To characterize the late adolescent and young adult outcomes of girls diagnosed with ADHD in childhood. METHOD: The study included 58 women from a larger longitudinal study of ADHD. A total of 34 (M = 19.97 years old) met DSM criteria for ADHD in childhood, whereas the remaining 24 (M = 19.83 years old) did not. Self- and parent-reports of psychopathology, delinquency, interpersonal relationships, academic achievement, job performance, and substance use were collected. RESULTS: The findings suggest that girls with ADHD experience difficulties in late adolescence and young adulthood, such as more conflict with their mothers, being involved in fewer romantic relationships, and experiencing more depressive symptoms than comparison women. However, differences did not emerge in all domains, such as job performance, substance use, and self-reported ADHD symptomatology. CONCLUSION: The findings of this study add to the literature on the negative late adolescent and young adult outcomes associated with childhood ADHD in women.

The Estimated Annual Cost of ADHD to the U.S. Education System.

The purpose of this study was to examine and monetize the educational outcomes of students with ADHD. Data were examined from the Pittsburgh ADHD Longitudinal Study (PALS), a follow-up study of children diagnosed with ADHD in childhood and recontacted for follow-up in adolescence and young adulthood. A comprehensive educational history was obtained for all participants from Kindergarten through 12th grade. Annual economic impact was derived from costs incurred through special education placement, grade retention, and disciplinary incidents. Results indicated that, as compared to students without ADHD, students with ADHD incurred a higher annual cost to the U.S. Education system. Specifically, a student with ADHD incurred an average annual incremental cost to society of $5,007, as compared to $318 for students in the comparison group. These results suggest that prevention and intervention strategies are greatly needed to offset the large financial impact of educating youth with ADHD.

The efficacy and tolerability of methylphenidate and behavior modification in children with attention-deficit/hyperactivity disorder and severe mood dysregulation.

OBJECTIVES: This study examines the tolerability and efficacy of methylphenidate (MPH) and behavior modification therapy (BMOD) in children with attention-deficity/hyperactivity disorder (ADHD) and severe mood dysregulation (SMD). METHODS: Children (ages 5-12) from a summer program for ADHD were screened for SMD and additional manic-like symptoms using structured assessments and direct clinical interview with the Young Mania Rating Scale (YMRS). The SMD group was comprised of 33 subjects with SMD and elevated YMRS scores (mean = 23.7). They underwent weekly mood assessments plus the daily ADHD measures that are part of the program. The comparison group (n = 68) was comprised of the rest of the program participants. Using a crossover design, all subjects in both groups were treated with three varying intensities of BMOD (no, low, high) each lasting 3 weeks, with MPH dose (placebo, 0.15 mg/kg t.i.d., 0.3mg/kg t.i.d., and 0.6 mg/kg t.i.d.) varying daily within each behavioral treatment. RESULTS: Groups had comparable ADHD symptoms at baseline, with the SMD group manifesting more oppositional defiant disorder/conduct disorder (ODD/CD) symptoms (p < 0.001). Both groups showed robust improvement in externalizing symptoms (p < 0.001). There was no evidence of differential treatment efficacy or tolerability. Treatment produced a 34% reduction in YMRS ratings in SMD subjects (p - 0.001). However, they still exhibited elevated YMRS ratings, more ODD/CD symptoms (p < 0.001), and were more likely to remain significantly impaired at home than non-SMD subjects (p < 0.05). CONCLUSIONS: MPH and BMOD are tolerable and effective treatments for children with ADHD and SMD, but additional treatments may be needed to optimize their functioning.

The economic impact of attention-deficit/hyperactivity disorder in children and adolescents.

Using a cost of illness (COI) framework, this article examines the economic impact of attention-deficit/hyperactivity disorder (ADHD) in childhood and adolescence. Our review of published literature identified 13 studies, most conducted on existing databases by using diagnostic and medical procedure codes and focused on health care costs. Two were longitudinal studies of identified children with ADHD followed into adolescence. Costs were examined for ADHD treatment-related and other health care costs (all but 1 study addressed some aspect of health care), education (special education, 2 studies; disciplinary costs: 1 study), parental work loss (2 studies), and juvenile justice (2 studies). Based on this small and as yet incomplete evidence base, we estimated annual COI of ADHD in children and adolescents at $14,576 per individual (2005 dollars). Given the variability of estimates across studies on which that number is based, a reasonable range is between $12,005 and $17,458 per individual. Using a prevalence rate of 5%, a conservative estimate of the annual societal COI for ADHD in childhood and adolescence is $42.5 billion, with a range between $36 billion and $52.4 billion. Estimates are preliminary because the literature is incomplete; many potential costs have not been assessed in extant studies. Limitations of the review and suggestions for future research on COI of ADHD are provided.

The economic impact of attention-deficit/hyperactivity disorder in children and adolescents.

Using a cost of illness (COI) framework, this article examines the economic impact of attention-deficit/hyperactivity disorder (ADHD) in childhood and adolescence. Our review of published literature identified 13 studies, most conducted on existing databases by using diagnostic and medical procedure codes and focused on health care costs. Two were longitudinal studies of identified children with ADHD followed into adolescence. Costs were examined for ADHD treatment-related and other health care costs (all but 1 study addressed some aspect of health care), education (special education, 2 studies; disciplinary costs: 1 study), parental work loss (2 studies), and juvenile justice (2 studies). Based on this small and as yet incomplete evidence base, we estimated annual COI of ADHD in children and adolescents at $14,576 per individual (2005 dollars). Given the variability of estimates across studies on which that number is based, a reasonable range is between $12,005 and $17,458 per individual. Using a prevalence rate of 5%, a conservative estimate of the annual societal COI for ADHD in childhood and adolescence is $42.5 billion, with a range between $36 billion and $52.4 billion. Estimates are preliminary because the literature is incomplete; many potential costs have not been assessed in extant studies. Limitations of the review and suggestions for future research on COI of ADHD are provided.