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J Am Acad Child Adolesc Psychiatry. 2019 Apr;58(4):423-432. doi: 10.1016/j.jaac.2018.11.014. Epub 2019 Feb 2.

Attention-Deficit/Hyperactivity Disorder, School Performance, and Effect of Medication.

Author information

1
Karolinska Institutet, Stockholm, Sweden. Electronic address: andreas.jangmo@ki.se.
2
Karolinska Institutet, Stockholm, Sweden; Child and Adolescent Clinic, Stockholm County Council, Stockholm, Sweden.
3
Karolinska Institutet, Stockholm, Sweden.
4
Karolinska Institutet, Stockholm, Sweden; Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden.
5
Uppsala University, Uppsala, Sweden.
6
Karolinska Institutet, Stockholm, Sweden; University of North Carolina at Chapel Hill, NC.
7
Karolinska Institutet, Stockholm, Sweden; Indiana University, Bloomington, IN.
8
Karolinska Institutet, Stockholm, Sweden; School of Medical Sciences, Örebro University, Örebro, Sweden.

Abstract

OBJECTIVE:

Individuals with attention-deficit/hyperactivity disorder (ADHD) are at increased risk for poor school performance, and pharmacological treatment of ADHD may have beneficial effects on school performance. Conclusions from previous research have been limited by small sample sizes, outcome measures, and treatment follow-up. The current study analyzed school performance in students with ADHD compared to students without ADHD, and the association between pharmacological treatment of ADHD and school performance.

METHOD:

A linkage of Swedish national registers covering 657,720 students graduating from year 9 of compulsory school provided measures of school performance, electronically recorded dispensations of ADHD medication, and potentially confounding background factors such as parental socioeconomic status. Primary measures of school performance included student eligibility to upper secondary school and grade point sum.

RESULTS:

ADHD was associated with substantially lower school performance independent of socioeconomic background factors. Treatment with ADHD medication for 3 months was positively associated with all primary outcomes, including a decreased risk of no eligibility to upper secondary school, odds ratio = 0.80, 95% confidence interval (CI) = 0.76-0.84, and a higher grade point sum (range, 0.0-320.0) of 9.35 points, 95% CI = 7.88-10.82; standardized coefficient = 0.20.

CONCLUSION:

ADHD has a substantial negative impact on school performance, whereas pharmacological treatment for ADHD is associated with higher levels in several measures of school performance. Our findings emphasize the importance of detection and treatment of ADHD at an early stage to reduce the negative impact on school performance.

KEYWORDS:

ADHD; medication; school performance; treatment

PMID:
30768391
DOI:
10.1016/j.jaac.2018.11.014

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