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Six-Year Outcome in Subjects Diagnosed with Attention-Deficit/Hyperactivity Disorder as Adults
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Psykiatri, Akademiska sjukhuset.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Psykiatri, Akademiska sjukhuset.
2018 (Engelska)Ingår i: European Archives of Psychiatry and Clinical Neuroscience, ISSN 0940-1334, E-ISSN 1433-8491, Vol. 268, nr 4, s. 337-347Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

There are very few studies on the long-term outcome in subjects diagnosed with ADHD as adults. The objective of the present study was to assess this and relate the outcome to whether there was current medication or not and to other potential predictors of favourable outcome. A prospective clinical cohort of adults diagnosed with ADHD according to DSM-IV criteria was followed-up on an average of 6 years after first evaluation (n = 124; mean age 42 years, 51% males). ADHD symptom trajectories were assessed as well as medication, global functioning, disability, health-related quality of life, and alcohol and drug consumption at follow-up. Ninety percent of those diagnosed were initially treated pharmacologically and half of them discontinued treatment. One-third reported remission, defined as not fulfilling any ADHD subtype and a GAF-value last year ≥ 70, which was not affected by comorbidity at baseline. Current medication was not associated with remission. Subjects evaluated and first diagnosed with ADHD as adults are functionally improved at follow-up 6 years later despite a high percentage of psychiatric comorbidity at baseline. Half dropped out of medication, and there was no difference in ADHD remission between subjects with on-going medication at follow-up or subjects without medication, although current medication was related to a higher degree of self-reported global improvement.

Ort, förlag, år, upplaga, sidor
2018. Vol. 268, nr 4, s. 337-347
Nationell ämneskategori
Psykiatri
Forskningsämne
Psykiatri
Identifikatorer
URN: urn:nbn:se:uu:diva-327890DOI: 10.1007/s00406-017-0850-6.ISI: 000432412500003PubMedID: 29143159OAI: oai:DiVA.org:uu-327890DiVA, id: diva2:1130811
Forskningsfinansiär
VetenskapsrådetTillgänglig från: 2017-08-11 Skapad: 2017-08-11 Senast uppdaterad: 2018-07-30Bibliografiskt granskad
Ingår i avhandling
1. Attention Deficit/Hyperactivity Disorder in Adults: Prevalence, Psychiatric Comorbidities and Long-term Outcome
Öppna denna publikation i ny flik eller fönster >>Attention Deficit/Hyperactivity Disorder in Adults: Prevalence, Psychiatric Comorbidities and Long-term Outcome
2017 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Attention Deficit/Hyperactivity Disorder (ADHD) was originally thought to occur only in children, but is increasingly recognised as causing functional impairment also in adulthood. The overall aim of this thesis was to achieve a comprehensive understanding of ADHD in adulthood.

A questionnaire based on the DSM-IV criteria of ADHD, reported childhood symptoms, reading and spelling problems, difficulties and suffering and general assessment of functioning (GAF) was distributed to three samples: the general population (GP), outpatient psychiatry (OPP) and female prison inmates. Symptoms consistent with ADHD were more than three times higher in the OPP sample than in the GP sample (6.6 versus 2.1%). ADHD symptoms and related problems occurred in 50% of the prison inmates.

A cohort of 168 patients diagnosed with ADHD in adulthood was interviewed about current ADHD symptoms and psychiatric comorbidity on axis I and II. The lifetime prevalence of psychiatric comorbidity on axis I was 92% and current comorbidity, including autism spectrum disorders and Tourette’s syndrome, was 47%. The sex-specific pattern of the comorbid disor-ders was similar to that in the general population. Forty-six per cent of the patients endorsed the specific criteria for at least one personality disorder.

After a mean follow-up of six years, there was remission of adult ADHD in about 30% of the patients, regardless of whether there was ongoing medication or not. There were no differences in function and quality of life, except for global general improvement, which was better in patients currently on medication.

The most prevalent long-term side effects of pharmacological treatment with mainly stimulants were decreased appetite, dry mouth, anxiousness/restlessness and an increase in pulse frequency. The discontinuation rate was about 50%: 29% discontinued because of a perceived lack of effect, followed by elevated mood or hypomania (11%). No detectable evidence of tolerance and increased need for dosage over time was observed.

To conclude, Symptoms of ADHD is highly overrepresented in OPP and in female inmates compared with the GP. Furthermore, adults diagnosed with ADHD have a high lifetime prevalence of psychiatric comorbidity. Long-term pharmacological treatment with stimulants is safe with relatively mild and tolerable adverse effects. Continued medication, however, is not related to remission.

Ort, förlag, år, upplaga, sidor
Uppsala: Acta Universitatis Upsaliensis, 2017. s. 67
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 1353
Nyckelord
ADHD, adults, prevalence, inmates, psychiatric comorbidity, long-term outcome, side effects, adverse events, stimulants, atomoxetine.
Nationell ämneskategori
Psykiatri
Forskningsämne
Psykiatri
Identifikatorer
urn:nbn:se:uu:diva-327892 (URN)978-91-513-0029-0 (ISBN)
Disputation
2017-09-30, Gunnesalen, Ing 10, Akademiska sjukhuset, Uppsala, 09:15 (Svenska)
Opponent
Handledare
Tillgänglig från: 2017-09-07 Skapad: 2017-08-11 Senast uppdaterad: 2017-09-08

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