Abstract
Objective
With dual focus on structured, objective quantification of parent observations of child’s behavior and identifying behaviors most amenable to change, this report examines Parent Target Problems (PTP) as a secondary outcome in a randomized clinical trial (RCT) of children with attention-deficit/ hyperactivity disorder (ADHD) in which one primary outcome, Clinical Global Impression-Improvement, showed a significant advantage of multinutrients over placebo and the other, Likert-type parent ratings, showed significant improvement in both groups, without significant difference between them.
Method
In a multisite 8-week RCT of broad-spectrum micronutrients (“multinutrients”), parents of children ages 6–12 (N = 126, 73% male, 88% white) with ADHD and emotional dysregulation nominated their child’s most concerning problem(s) at baseline and quantified them by frequency, duration, impairment, and consequences. At subsequent visits, parents re-quantified the problem(s). Blinded child psychiatrists independently reviewed the PTPs and rated change at two timepoints compared to baseline. PTPs were grouped into 9 categories. Mean ratings were compared between active and placebo groups and explored by category.
Results
By week 8, a significant separation favored multinutrients: 38% of the multinutrient group were “definitely improved” or better, compared to 25% of the placebo group, and ratings of “no change” or “worse” occurred in 35% with placebo versus 23% with multinutrients (p = 0.04). Inattention (72.2%) and emotional dysregulation (69.1%) were the most frequently reported PTP categories. Inattention and internalizing symptoms improved more with multinutrients than placebo (p = 0.01, d = 0.55; p = 0.03, d = 0.80, respectively). The multinutrient advantage was not significant for 7 other symptoms, including hyperactivity/impulsivity, aggression, autistic symptoms, or emotional dysregulation/irritable oppositionality.
Conclusions
This secondary analysis found that the multinutrients, compared to placebo, were associated with improvements in parental concerns overall, and in two domains specifically: inattention and internalizing symptoms (anxiety/depression), but not in seven domains: hyperactivity/impulsivity, aggression, autistic symptoms or physiological symptoms, peer relationships or emotional dysregulation/irritable oppositionality.


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Acknowledgements
Thank you to the parents and children who participated in the study. The study was supported through private donations to the Nutrition and Mental Health Research Fund, managed by the Foundation for Excellence in Mental Health Care (FEMHC), plus a direct grant from FEMHC, and from the Gratis Foundation. Authors also received support from the National Institutes of Health (NIH) National Center for Complementary and Integrative Health (NCCIH) K2390281846 and T32AT002688 to Oregon Health & Science University (OHSU) and NIH-NCCIH 5R90AT00892403 to the National University for Natural Medicine; the National Center for Advancing Translational Sciences of the NIH, UL1TR000128, UL1TR002369; 8UL1TR000090-05 at OHSU and Ohio State University; OHSU’s Department of Child and Adolescent Psychiatry; the Department of Behavioral Health and Psychiatry and the Research Institute at Nationwide Children’s Hospital, the Department of Psychiatry and Behavioral Health as well as the Department of Human Sciences at Ohio State University. Dr. Gracious received support from the Jeffrey Fellowship. In Canada, funding was received through the Nutrition and Mental Health Fund, administered by the Calgary Foundation. Dr. Leung is supported by the Emmy Droog Chair in Complementary and Alternative Healthcare. The study funders had no role in the design or reporting of the study. The authors report no competing interests to share although Dr. Arnold has received research funding from Supernus Pharmaceuticals, Roche/Genentech Pharmaceuticals, Otsuka Pharmaceuticals, Axial, Yamo Pharmaceuticals, MapLight Therapeutics, Myndlift, Young Living Essential Oils and National Institute of Health (USA, R01 MH 100144), has consulted with Pfizer Pharmaceuticals, Yamo, and CHADD, and been on advisory boards for Otsuka and Roche/Genentech. Supplement and matched placebo were provided by Hardy Nutritionals, who had no input into design, data collection, data analysis, interpretation, or reporting.
Study data may be made available on request by contacting the corresponding author.
Correspondence to:
Jeanette Johnstone, PhD, MA.
Assistant Professor, Oregon Health & Science University.
3181 SW Sam Jackson Park Road, DC7P.
Portland, OR 97239.
(503) 494–3700.
jojeanet@ohsu.edu.
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Ms. Tost, along with Drs. Johnstone and Arnold, wrote the preliminary manuscript draft. All authors contributed to editing. Drs. Arnold, Williams and Gracious rated the PTPs. Dr. Srikanth conducted all analyses and prepared the tables and figures.
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Tost, G., Srikanth, P., Bruton, A. et al. Problems most concerning to parents of children with ADHD and emotional dysregulation in a randomized controlled trial of multinutrients: MADDY secondary analysis. Eur Child Adolesc Psychiatry 33, 4335–4347 (2024). https://doi.org/10.1007/s00787-024-02463-1
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DOI: https://doi.org/10.1007/s00787-024-02463-1

