Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a highly heritable neurodevelopmental disorder, and comorbidity with other mental diseases is common. Specifically, adult ADHD (aADHD) is highly comorbid with major depressive disorder (MDD). A genetic correlation between ADHD and MDD might underlie the risk of comorbidity of both disorders. However, whether patients with ADHD and comorbid MDD differ genetically from those without comorbid MDD is currently unclear. We therefore studied the genetic background of an aADHD cohort including 352 patients with lifetime MDD and 349 patients with no history of depression, assessed by SCID-I. Polygenic risk scores for ADHD (PRS-ADHD) and MDD (PRS-MDD) were derived from large-scale genome-wide association studies. These PRS were first regressed using aADHD patients (n = 894) vs. healthy controls (n = 1026), and then using comorbidity and dimensional traits in the aADHD cohort. Both PRS-ADHD and PRS-MDD were associated with ADHD (PRS-ADHD: OR = 1.59, p < 0.0001; PRS-MDD: OR = 1.41, p < 0.0001), but only PRS-MDD was associated with comorbid MDD in aADHD patients (OR = 1.34, p < 0.001). Notably, patients with a history of combined MDD and anxiety disorders had the highest PRS-MDD. ADHD patients with a history of MDD had higher odds for other internalizing disorders, showed significantly more inattentive symptoms, higher neuroticism scores, lower childhood social confidence, and were more often treated as psychiatric inpatients. These findings suggest that comorbidity between aADHD and MDD is associated with genetic susceptibility to MDD, rather than neurodevelopmental factors intrinsic to ADHD pathophysiology. Our results also strengthen the view that comorbid MDD in aADHD is linked to an inattentive-internalizing rather than an impulsive-externalizing psychopathological factor.
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The data that support the findings of this study are available from the corresponding author upon reasonable request.
References
Kittel-Schneider S, Arteaga-Henriquez G, Vasquez AA, Asherson P, Banaschewski T, Brikell I, et al. Non-mental diseases associated with ADHD across the lifespan: fidgety philipp and pippi longstocking at risk of multimorbidity? Neurosci Biobehav Rev. 2021.
McGough JJ, Smalley SL, McCracken JT, Yang M, Del’Homme M, Lynn DE, et al. Psychiatric comorbidity in adult attention deficit hyperactivity disorder: findings from multiplex families. Am J Psychiatry. 2005;162:1621–7.
Franke B, Michelini G, Asherson P, Banaschewski T, Bilbow A, Buitelaar JK, et al. Live fast, die young? a review on the developmental trajectories of ADHD across the lifespan. Eur Neuropsychopharmacol. 2018;28:1059–88.
Ahnemark E, Di Schiena M, Fredman AC, Medin E, Soderling JK, Ginsberg Y. Health-related quality of life and burden of illness in adults with newly diagnosed attention-deficit/hyperactivity disorder in Sweden. BMC Psychiatry. 2018;18:223.
Choi WS, Woo YS, Wang SM, Lim HK, Bahk WM. The prevalence of psychiatric comorbidities in adult ADHD compared with non-ADHD populations: a systematic literature review. PLoS One. 2022;17:e0277175.
Hartman CA, Larsson H, Vos M, Bellato A, Libutzki B, Solberg BS, et al. Anxiety, mood, and substance use disorders in adult men and women with and without attention-deficit/hyperactivity disorder: a substantive and methodological overview. Neurosci Biobehav Rev. 2023;151:105209.
McIntosh D, Kutcher S, Binder C, Levitt A, Fallu A, Rosenbluth M. Adult ADHD and comorbid depression: a consensus-derived diagnostic algorithm for ADHD. Neuropsychiatr Dis Treat. 2009;5:137–50.
Powell V, Agha SS, Jones RB, Eyre O, Stephens A, Weavers B, et al. ADHD in adults with recurrent depression. J Affect Disord. 2021;295:1153–60.
Meinzer MC, Pettit JW, Waxmonsky JG, Gnagy E, Molina BS, Pelham WE. Does childhood attention-deficit/hyperactivity disorder (ADHD) predict levels of depressive symptoms during emerging adulthood?. J Abnorm Child Psychol. 2016;44:787–97.
McIntyre RS, Kennedy SH, Soczynska JK, Nguyen HT, Bilkey TS, Woldeyohannes HO, et al. Attention-deficit/hyperactivity disorder in adults with bipolar disorder or major depressive disorder: results from the international mood disorders collaborative project. Prim Care Companion J Clin Psychiatry. 2010;12:PCC.09m00861.
Blackman GL, Ostrander R, Herman KC. Children with ADHD and depression: a multisource, multimethod assessment of clinical, social, and academic functioning. J Atten Disord. 2005;8:195–207.
Fabbri C, Hagenaars SP, John C, Williams AT, Shrine N, Moles L, et al. Genetic and clinical characteristics of treatment-resistant depression using primary care records in two UK cohorts. Mol Psychiatry. 2021;26:3363–73.
Sternat T, Fotinos K, Fine A, Epstein I, Katzman MA. Low hedonic tone and attention-deficit hyperactivity disorder: risk factors for treatment resistance in depressed adults. Neuropsychiatr Dis Treat. 2018;14:2379–87.
Bron TI, Bijlenga D, Verduijn J, Penninx BW, Beekman AT, Kooij JJ. Prevalence of ADHD symptoms across clinical stages of major depressive disorder. J Affect Disord. 2016;197:29–35.
Sprooten E, Franke B, Greven CU. The P-factor and its genomic and neural equivalents: an integrated perspective. Mol Psychiatry. 2021;27:38–48.
Caspi A, Houts RM, Belsky DW, Goldman-Mellor SJ, Harrington H, Israel S, et al. The p factor: one general psychopathology factor in the structure of psychiatric disorders?. Clin Psychol Sci. 2014;2:119–37.
Biederman J, Newcorn J, Sprich S. Comorbidity of attention deficit hyperactivity disorder with conduct, depressive, anxiety, and other disorders. Am J Psychiatry. 1991;148:564–77.
Kebets V, Favre P, Houenou J, Polosan M, Perroud N, Aubry JM, et al. Fronto-limbic neural variability as a transdiagnostic correlate of emotion dysregulation. Transl Psychiatry. 2021;11:545.
Biederman J, Mick E, Faraone SV. Depression in attention deficit hyperactivity disorder (ADHD) children: “true” depression or demoralization?. J Affect Disord. 1998;47:113–22.
Humphreys KL, Katz SJ, Lee SS, Hammen C, Brennan PA, Najman JM. The association of ADHD and depression: mediation by peer problems and parent-child difficulties in two complementary samples. J Abnorm Psychol. 2013;122:854–67.
Powell V, Riglin L, Hammerton G, Eyre O, Martin J, Anney R, et al. What explains the link between childhood ADHD and adolescent depression? investigating the role of peer relationships and academic attainment. Eur Child Adolesc Psychiatry. 2020;29:1581–91.
Faraone SV, Larsson H. Genetics of attention deficit hyperactivity disorder. Mol Psychiatry. 2019;24:562–75.
Kendler KS, Gatz M, Gardner CO, Pedersen NL. A Swedish national twin study of lifetime major depression. Am J Psychiatry. 2006;163:109–14.
Fernandez-Pujals AM, Adams MJ, Thomson P, McKechanie AG, Blackwood DH, Smith BH, et al. Epidemiology and heritability of major depressive disorder, stratified by age of onset, sex, and illness course in generation scotland: scottish family health study (GS:SFHS). PLoS One. 2015;10:e0142197.
Rydell M, Taylor MJ, Larsson H. Genetic and environmental contributions to the association between ADHD and affective problems in early childhood-A Swedish population-based twin study. Am J Med Genet B Neuropsychiatr Genet. 2017;174:538–46.
Segenreich D, Paez MS, Regalla MA, Fortes D, Faraone SV, Sergeant J, et al. Multilevel analysis of ADHD, anxiety and depression symptoms aggregation in families. Eur Child Adolesc Psychiatry. 2015;24:525–36.
Chen TJ, Ji CY, Wang SS, Lichtenstein P, Larsson H, Chang Z. Genetic and environmental influences on the relationship between ADHD symptoms and internalizing problems: a Chinese twin study. Am J Med Genet B Neuropsychiatr Genet. 2016;171:931–7.
Anttila V, Bulik-Sullivan B, Finucane HK, Walters RK, Bras J, Duncan L, et al. Analysis of shared heritability in common disorders of the brain. Science. 2018;360:eaap8757.
Du Rietz E, Coleman J, Glanville K, Choi SW, O’Reilly PF, Kuntsi J. Association of polygenic risk for attention-deficit/hyperactivity disorder with co-occurring traits and disorders. Biol Psychiatry Cogn Neurosci Neuroimaging. 2018;3:635–43.
Powell V, Martin J, Thapar A, Rice F, Anney RJL. Investigating regions of shared genetic variation in attention deficit/hyperactivity disorder and major depressive disorder: a GWAS meta-analysis. Sci Rep. 2021;11:7353.
Hindley G, Frei O, Shadrin AA, Cheng W, O’Connell KS, Icick R, et al. Charting the landscape of genetic overlap between mental disorders and related traits beyond genetic correlation. Am J Psychiatry. 2022;179:833–43.
Demontis D, Walters GB, Athanasiadis G, Walters R, Therrien K, Nielsen TT, et al. Genome-wide analyses of ADHD identify 27 risk loci, refine the genetic architecture and implicate several cognitive domains. Nat Genet. 2023;55:198–208.
Cao Z, Yang H, Ye Y, Zhang Y, Li S, Zhao H, et al. Polygenic risk score, healthy lifestyles, and risk of incident depression. Transl Psychiatry. 2021;11:189.
Gross-Lesch S, Dempfle A, Reichert S, Jans T, Geissler J, Kittel-Schneider S, et al. Sex- and Subtype-Related Differences in the Comorbidity of Adult ADHDs. J Atten Disord. 2016;20:855–66.
Nutt D. Anxiety and depression: individual entities or two sides of the same coin?. Int J Psychiatry Clin Pract. 2004;8:19–24.
Batterham PJ, Christensen H, Calear AL. Anxiety symptoms as precursors of major depression and suicidal ideation. Depress Anxiety. 2013;30:908–16.
Jacob CP, Gross-Lesch S, Reichert S, Geissler J, Jans T, Kittel-Schneider S, et al. Sex- and subtype-related differences of personality disorders (Axis II) and personality traits in persistent ADHD. J Atten Disord. 2016;20:1056–65.
Sheehan DV, Lecrubier Y, Sheehan KH, Amorim P, Janavs J, Weiller E, et al. The mini-international neuropsychiatric interview (M.I.N.I.): the development and validation of a structured diagnostic psychiatric interview for DSM-IV and ICD-10. J Clin Psychiatry. 1998;59:22–33.
Chmitorz A, Neumann RJ, Kollmann B, Ahrens KF, Ohlschlager S, Goldbach N, et al. Longitudinal determination of resilience in humans to identify mechanisms of resilience to modern-life stressors: the longitudinal resilience assessment (LORA) study. Eur Arch Psychiatry Clin Neurosci. 2021;271:1035–51.
Ward MF, Wender PH, Reimherr FW. The Wender Utah Rating Scale: an aid in the retrospective diagnosis of childhood attention deficit hyperactivity disorder. Am J Psychiatry. 1993;150:885–90.
First MB, Spitzer RL, Gibbon M, Williams JBW Structured Clinical Interview for DSM-IV Axis I Disorders, Clinician Version (SCID-CV). Washington, DC: American Psychiatric Press; 1996.
Richter P, Werner J, Heerlein A, Kraus A, Sauer H. On the validity of the beck depression inventory. A review Psychopathology. 1998;31:160–8.
Costa PT, McCrae RR Revised NEO Personality Inventory (NEO-PI-R) and NEO Five Factor Inventory: Professional manual. Odessa, FL: Psychological Assessment Resources. 1992.
Calamia M, Hill BD, Musso MW, Pella RD, Gouvier WD. Factor structure and clinical correlates of the 61-item Wender Utah Rating Scale (WURS). Atten Defic Hyperact Disord. 2018;10:177–88.
Chang CC, Chow CC, Tellier LC, Vattikuti S, Purcell SM, Lee JJ. Second-generation PLINK: rising to the challenge of larger and richer datasets. Gigascience. 2015;4:7.
Ge T, Chen CY, Ni Y, Feng YA, Smoller JW. Polygenic prediction via bayesian regression and continuous shrinkage priors. Nat Commun. 2019;10:1776.
Howard DM, Adams MJ, Clarke TK, Hafferty JD, Gibson J, Shirali M, et al. Genome-wide meta-analysis of depression identifies 102 independent variants and highlights the importance of the prefrontal brain regions. Nat Neurosci. 2019;22:343–52.
Choi SW, O’Reilly PF. PRSice-2: polygenic risk score software for biobank-scale data. Gigascience. 2019;8:giz082.
Ayano G, Tsegay L, Gizachew Y, Necho M, Yohannes K, Abraha M, et al. Prevalence of attention deficit hyperactivity disorder in adults: umbrella review of evidence generated across the globe. Psychiatry Res. 2023;328:115449.
Wray NR, Ripke S, Mattheisen M, Trzaskowski M, Byrne EM, Abdellaoui A, et al. Genome-wide association analyses identify 44 risk variants and refine the genetic architecture of major depression. Nat Genet. 2018;50:668–81.
Baxter AJ, Scott KM, Vos T, Whiteford HA. Global prevalence of anxiety disorders: a systematic review and meta-regression. Psychol Med. 2013;43:897–910.
Choi SW, Mak TS, O’Reilly PF. Tutorial: a guide to performing polygenic risk score analyses. Nat Protoc. 2020;15:2759–72.
Penninx BW, Pine DS, Holmes EA, Reif A. Anxiety disorders. Lancet. 2021;397:914–27.
Quenneville AF, Kalogeropoulou E, Nicastro R, Weibel S, Chanut F, Perroud N. Anxiety disorders in adult ADHD: a frequent comorbidity and a risk factor for externalizing problems. Psychiatry Res. 2022;310:114423.
Coombes BJ, Landi I, Choi KW, Singh K, Fennessy B, Jenkins GD, et al. The genetic contribution to the comorbidity of depression and anxiety: a multi-site electronic health records study of almost 178 000 people. Psychol Med. 2023;53:7368–74.
Riglin L, Leppert B, Dardani C, Thapar AK, Rice F, O’Donovan MC, et al. ADHD and depression: investigating a causal explanation. Psychol Med. 2021;51:1890–7.
Gundel LK, Pedersen CB, Munk-Olsen T, Dalsgaard S. Longitudinal association between mental disorders in childhood and subsequent depression - a nationwide prospective cohort study. J Affect Disord. 2018;227:56–64.
Sahmurova A, Arikan S, Gursesli MC, Duradoni M. ADHD symptoms as a stressor leading to depressive symptoms among university students: the mediating role of perceived stress between ADHD and depression. Int J Env Res Public Health. 2022;19:11091.
Becker SP, Mehari KR, Langberg JM, Evans SW. Rates of peer victimization in young adolescents with ADHD and associations with internalizing symptoms and self-esteem. Eur Child Adolesc Psychiatry. 2017;26:201–14.
Roy A, Hartman CA, Veenstra R, Oldehinkel AJ. Peer dislike and victimisation in pathways from ADHD symptoms to depression. Eur Child Adolesc Psychiatry. 2015;24:887–95.
Powell V, Riglin L, Ng-Knight T, Frederickson N, Woolf K, McManus C, et al. Investigating friendship difficulties in the pathway from adhd to depressive symptoms. can parent-child relationships compensate?. Res Child Adolesc Psychopathol. 2021;49:1031–41.
Demontis D, Walters RK, Martin J, Mattheisen M, Als TD, Agerbo E, et al. Discovery of the first genome-wide significant risk loci for attention deficit/hyperactivity disorder. Nat Genet. 2019;51:63–75.
Du Rietz E, Pettersson E, Brikell I, Ghirardi L, Chen Q, Hartman C, et al. Overlap between attention-deficit hyperactivity disorder and neurodevelopmental, externalising and internalising disorders: separating unique from general psychopathology effects. Br J Psychiatry. 2021;218:35–42.
Soler Artigas M, Sanchez-Mora C, Rovira P, Vilar-Ribo L, Ramos-Quiroga JA, Ribases M. Mendelian randomization analysis for attention deficit/hyperactivity disorder: studying a broad range of exposures and outcomes. Int J Epidemiol. 2023;52:386–402.
Garcia-Argibay M, Brikell I, Thapar A, Lichtenstein P, Lundstrom S, Demontis D, et al. Attention-deficit/hyperactivity disorder and major depressive disorder: evidence from multiple genetically informed designs. Biol Psychiatry. 2023.
O’Connell KS, Coombes BJ. Genetic contributions to bipolar disorder: current status and future directions. Psychol Med. 2021;51:2156–67.
Shen X, Howard DM, Adams MJ, Hill WD, Clarke TK, Major Depressive Disorder Working Group of the Psychiatric Genomics C, et al. A phenome-wide association and Mendelian Randomisation study of polygenic risk for depression in UK Biobank. Nat Commun. 2020;11:2301.
Rajagopal VM, Duan J, Vilar-Ribo L, Grove J, Zayats T, Ramos-Quiroga JA, et al. Differences in the genetic architecture of common and rare variants in childhood, persistent and late-diagnosed attention-deficit hyperactivity disorder. Nat Genet. 2022;54:1117–24.
Rice F, Riglin L, Thapar AK, Heron J, Anney R, O’Donovan MC, et al. Characterizing developmental trajectories and the role of neuropsychiatric genetic risk variants in early-onset depression. JAMA Psychiatry. 2019;76:306–13.
Grotzinger AD, Mallard TT, Akingbuwa WA, Ip HF, Adams MJ, Lewis CM, et al. Genetic architecture of 11 major psychiatric disorders at biobehavioral, functional genomic and molecular genetic levels of analysis. Nat Genet. 2022;54:548–59.
Sevincok D, Ozbay HC, Ozbek MM, Tunagur MT, Aksu H. ADHD symptoms in relation to internalizing and externalizing symptoms in children: the mediating role of sluggish cognitive tempo. Nord J Psychiatry. 2020;74:265–72.
So FK, Chavira D, Lee SS. ADHD and ODD dimensions: time varying prediction of internalizing problems from childhood to adolescence. J Atten Disord. 2022;26:932–41.
Takeda T, Ambrosini PJ, deBerardinis R, Elia J. What can ADHD without comorbidity teach us about comorbidity?. Res Dev Disabil. 2012;33:419–25.
Jangmo A, Brikell I, Kuja-Halkola R, Feldman I, Lundstrom S, Almqvist C, et al. The association between polygenic scores for attention-deficit/hyperactivity disorder and school performance: The role of attention-deficit/hyperactivity disorder symptoms, polygenic scores for educational attainment, and shared familial factors. JCPP Adv. 2021;1:e12030.
Ronald A, de Bode N, Polderman TJC. Systematic review: how the Attention-Deficit/Hyperactivity disorder polygenic risk score adds to our understanding of ADHD and associated traits. J Am Acad Child Adolesc Psychiatry. 2021;60:1234–77.
Acknowledgements
We would like to thank all funding agencies that supported our research. We are grateful to all patients for their participation in the study and their constant enthusiasm despite the challenges of living with ADHD.
Funding
This work was supported by the Deutsche Forschungsgemeinschaft (CRC 1193 subproject Z03; DFG CRU 125), the DYNAMIC center, which is funded by the LOEWE program of the Hessian Ministry of Science and Arts (Grant Number: LOEWE1/16/519/03/09.001(0009)/98), and the EU Horizon 2020 Research and Innovation Programme under Grant No. 667302 (CoCA) and No. 728018 (Eat2beNICE), and by the ECNP Network ‘ADHD across the Lifespan’ (https://www.ecnp.eu/researchinnovation/ECNP-networks/List-ECNP-Networks/). FS was supported by the Hector foundation II. This publication was supported by the Open Access Publication Fund of the University of Würzburg. None of the funding sources had a role in study design; in the collection, analysis and interpretation of data; in the writing of the report; and in the decision to submit the paper for publication. Open Access funding enabled and organized by Projekt DEAL.
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GCZ and TMK wrote the first draft of the manuscript and carried out the statistical analyses. GCZ, TMK, and AR designed the study. KL, KPL, AR, and SKS had a supervisory role. RVM, CPJ, KFA, RJN, MMP, BK, FS, OT, HW and MR were involved in data collection and analysis. All authors contributed to manuscript writing and approved the final version of the manuscript.
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CPJ received speakers’ fees from derCampus, Daiichi Sankyo, Janssen-Cilag, Eli Lilly and Co, Shire, Novartis, and Medice. AR has received honoraria for lectures and/or advisory boards from Janssen, Boehringer Ingelheim, COMPASS, SAGE/Biogen, LivaNova, Medice, Shire/Takeda, MSD and cyclerion. Also, he has received research grants from Medice and Janssen. SKS has received speaker’s honoraria from Takeda, Medice and Janssen. None of the other authors reports any financial conflict of interest related to this work.
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Kranz, T.M., McNeill, R.V., Jacob, C.P. et al. Adult ADHD with comorbid major depression shows a distinguishable polygenic pattern and negative cognitive style. Transl Psychiatry (2026). https://doi.org/10.1038/s41398-026-04008-3
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DOI: https://doi.org/10.1038/s41398-026-04008-3


