ADHD: Adults with ADHD

 
         
 

compiledby Teresa Binstock for
Generation Rescue
June 2008

Adults with ADHD

 

1. Cross-national prevalence and correlates of adult attention-deficit hyperactivity disorder

Fayyad J et al.
Br J Psychiatry. 2007 May;190:402-9.
http://bjp.rcpsych.org/cgi/reprint/190/5/402

BACKGROUND: Little is known about the epidemiology of adult attention-deficit hyperactivity disorder (ADHD). AIMS: To estimate the prevalence and correlates of DSM-IV adult ADHD in the World Health Organization World Mental Health Survey Initiative. METHOD: An ADHD screen was administered to respondents aged 18-44 years in ten countries in the Americas, Europe and the Middle East (n=11422). Masked clinical reappraisal interviews were administered to 154 US respondents to calibrate the screen. Multiple imputation was used to estimate prevalence and correlates based on the assumption of cross-national calibration comparability. RESULTS: Estimates of ADHD prevalence averaged 3.4% (range 1.2-7.3%), with lower prevalence in lower-income countries (1.9%) compared with higher-income countries (4.2%). Adult ADHD often co-occurs with other DSM-IV disorders and is associated with considerable role disability. Few cases are treated for ADHD, but in many cases treatment is given for comorbid disorders. CONCLUSIONS: Adult ADHD should be considered more seriously in future epidemiological and clinical studies than is currently the case.
    PMID: 17470954


2.
Impact of psychometrically defined deficits of executive functioning in adults with attention deficit hyperactivity disorder

Biederman J, Petty C, Fried R, Fontanella J, Doyle AE, Seidman LJ, Faraone SV.
Am J Psychiatry. 2006 Oct;163(10):1730-8.
http://ajp.psychiatryonline.org/cgi/content/full/163/10/1730

OBJECTIVE: The association between deficits in executive functioning and functional outcomes was examined among adults with attention deficit hyperactivity disorder (ADHD). METHOD: Subjects were adults who did (N=213) and did not (N=145) meet DSM-IV criteria for ADHD. The authors defined having deficits in executive functioning as having at least two measures of executive functioning with scores 1.5 standard deviations below those of matched comparison subjects. RESULTS: Significantly more adults with ADHD had deficits of executive functioning than comparison subjects. Deficits of executive functioning were associated with lower academic achievement, irrespective of ADHD status. Subjects with ADHD with deficits of executive functioning had a significantly lower socioeconomic status and a significant functional morbidity beyond the diagnosis of ADHD alone. CONCLUSIONS: Psychometrically defined deficits of executive functioning may help identify a subgroup of adults with ADHD at high risk for occupational and academic underachievement. More efforts are needed to identify cost-effective approaches to screen individuals with ADHD for deficits of executive functioning.
PMID: 17012683


3.
Diagnosing adult attention deficit hyperactivity disorder: are late onset and subthreshold diagnoses valid?

Faraone SV, Biederman J, Spencer T, Mick E, Murray K, Petty C, Adamson JJ, Monuteaux MC.
Am J Psychiatry. 2006 Oct;163(10):1720-9.
http://ajp.psychiatryonline.org/cgi/content/full/163/10/1720

OBJECTIVE: Diagnosing attention deficit hyperactivity disorder (ADHD) in adults is difficult when diagnosticians cannot establish an onset before the DSM-IV criterion of age 7 or if the number of symptoms recalled does not achieve DSM's diagnosis threshold. METHOD: The authors addressed the validity of DSM-IV's age-at-onset and symptom threshold criteria by comparing four groups of adults: 127 subjects with full ADHD who met all DSM-IV criteria for childhood-onset ADHD, 79 subjects with late-onset ADHD who met all criteria except the age-at-onset criterion, 41 subjects with subthreshold ADHD who did not meet full symptom criteria for ADHD, and 123 subjects without ADHD who did not meet any criteria. The authors hypothesized that subjects with late-onset and subthreshold ADHD would show patterns of psychiatric comorbidity, functional impairment, and familial transmission similar to those seen in subjects with full ADHD. RESULTS: Subjects with late-onset and full ADHD had similar patterns of psychiatric comorbidity, functional impairment, and familial transmission. Most children with late onset of ADHD (83%) were younger than 12. Subthreshold ADHD was milder and showed a different pattern of familial transmission than the other forms of ADHD. CONCLUSIONS: The data about the clinical features of probands and the pattern of transmission of ADHD among relatives found little evidence for the validity of subthreshold ADHD among such subjects, who reported a lifetime history of some symptoms that never met DSM-IV's threshold for diagnosis. In contrast, the results suggested that late-onset adult ADHD is valid and that DSM-IV's age-at-onset criterion is too stringent.
PMID: 17012682


4.
The prevalence and correlates of adult ADHD in the United States: results from the National Comorbidity Survey Replication

Kessler RC et al.
Am J Psychiatry. 2006 Apr;163(4):716-23.
http://ajp.psychiatryonline.org/cgi/content/full/163/4/716

OBJECTIVE: Despite growing interest in adult attention deficit hyperactivity disorder (ADHD), little is known about its prevalence or correlates. METHOD: A screen for adult ADHD was included in a probability subsample (N=3,199) of 18-44-year-old respondents in the National Comorbidity Survey Replication, a nationally representative household survey that used a lay-administered diagnostic interview to assess a wide range of DSM-IV disorders. Blinded clinical follow-up interviews of adult ADHD were carried out with 154 respondents, oversampling those with positive screen results. Multiple imputation was used to estimate prevalence and correlates of clinician-assessed adult ADHD. RESULTS: The estimated prevalence of current adult ADHD was 4.4%. Significant correlates included being male, previously married, unemployed, and non-Hispanic white. Adult ADHD was highly comorbid with many other DSM-IV disorders assessed in the survey and was associated with substantial role impairment. The majority of cases were untreated, although many individuals had obtained treatment for other comorbid mental and substance-related disorders. CONCLUSIONS: Efforts are needed to increase the detection and treatment of adult ADHD. Research is needed to determine whether effective treatment would reduce the onset, persistence, and severity of disorders that co-occur with adult ADHD.
PMID: 16585449


5.
What happens when children with attention deficit/hyperactivity disorder grow up?

Newton-Howes G.
J R Soc Med. 2004 Nov;97(11):531-5.
http://jrsm.rsmjournals.com/cgi/content/full/97/11/531
PMID: 15520147


6.
Attention-deficit/hyperactivity disorder in adults: a survey of current practice in psychiatry and primary care

Faraone SV, Spencer TJ, Montano CB, Biederman J.
Arch Intern Med. 2004 Jun 14;164(11):1221-6.
http://archinte.ama-assn.org/cgi/content/full/164/11/1221

BACKGROUND: Recognition and treatment of attention-deficit/hyperactivity disorder (ADHD) in adults in psychiatry and primary care have faced many obstacles. METHODS: Review by 50 psychiatrists and 50 primary care practitioners (PCPs) of 537 and 317 medical records, respectively, of adults diagnosed as having ADHD. Information on other psychiatric disorders, time of onset of ADHD, source of referral, use of referrals for diagnosis, ADHD treatment, and use of drug holidays was recorded. RESULTS: Forty-five percent of the patient records reviewed by psychiatrists and 65% reviewed by PCPs indicated previous diagnoses of ADHD. Only 25% of the adults with ADHD had been first diagnosed as having the disorder in childhood or adolescence. A diagnosis of ADHD was the initial cause for referral in 80% of psychiatric patients and 60% of PCP patients. Most patients with previously diagnosed and undiagnosed ADHD were self-referred. Among patients who had not received a prior diagnosis, 56% complained about ADHD symptoms to other health professionals without being diagnosed; PCPs were the least aggressive in diagnosing ADHD. In psychiatric and PCP settings, there was a statistical difference in the use of pharmacotherapy (91% vs 78%, respectively) and the proportion of patients taking drug holidays (24% vs 17%, respectively); most drug holidays were initiated by the patient (57%). Stimulants were the treatment of choice for adult ADHD (84% treated with stimulants). CONCLUSION: Data contained within this medical record review suggest that adult ADHD is a substantial source of morbidity in both psychiatric and PCP settings.
PMID: 15197048


7.
Attention deficit hyperactivity disorder in adulthood

Toone B.
J Neurol Neurosurg Psychiatry. 2004 Apr;75(4):523-5.
http://jnnp.bmj.com/cgi/content/full/75/4/523
PMID: 15026486

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8.
Assessment and management of attention-deficit hyperactivity disorder in adults

Weiss M, Murray C.
CMAJ. 2003 Mar 18;168(6):715-22.
http://www.cmaj.ca/cgi/content/full/168/6/715

Attention-deficit hyperactivity disorder (ADHD) is estimated to affect 2%-6% of adults. The symptoms in adults with ADHD mirror those in children with the disorder and are associated with significant educational, occupational and interpersonal difficulties. Double-blind, placebo-controlled trials have established that adult ADHD is responsive to stimulant medication treatment. New medications and psychotherapeutic approaches are being developed in an effort to achieve optimal treatment effects in this population. We review the available literature and provide an approach to the assessment and management of ADHD in adults.
PMID: 12642429


9.
Prevalence of attention deficit/hyperactivity disorder among adults in obesity treatment

Altfas JR.
BMC Psychiatry. 2002 Sep 13;2:9.
http://www.biomedcentral.com/1471-244X/2/9

BACKGROUND: Bariatric patients showing poor "focus" during treatment more often failed to lose weight or maintain reduced weight. Evaluation of these patients identified a number having attention deficit/hyperactivity disorder (ADHD), evidently a potent factor limiting successful weight control. After searches found no published reports describing comorbid ADHD and obesity, this report was conceived to begin exploring the prevalence and characteristics of these patients. METHOD: Clinical records of 215 patients receiving obesity treatment during 2000 were reviewed. Data collected and analyzed included age, sex, beginning and ending body mass index (BMI), number of clinic visits, months of treatment, and diagnostic category (ADHD, some ADHD symptoms, non-ADHD). DSM-IV criteria were used, except age of onset was modified to <= 12 years. RESULTS: Whole sample ADHD prevalence was 27.4% (CI:21.1,32.9), but 42.6% (CI: 36.3% to 48.9%) for BMI >= 40. Mean weight loss among obese patients with ADHD (OB+ADHD) was 2.6 BMI (kg/m2) vs. 4.0 for non-ADHD (NAD) (p < 0.002). For BMI >= 40, OB+ADHD had BMI loss 2.9 vs. 7.0 (NAD) (p < 0.004). OB+ADHD had more clinic visits, with a trend toward longer treatment duration. CONCLUSIONS: ADHD was highly prevalent among obese patients and highest in those with extreme obesity. Comorbid obesity and ADHD symptoms rendered treatment less successful compared to NAD counterparts. Reasons for the comorbidity are unknown, but may involve brain dopamine or insulin receptor activity. If replicated in further studies, these findings have important implications for treatment of severe and extreme obesity.
PMID: 12227832


10.
The pathophysiology, medical management and dental implications of adult attention-deficit/hyperactivity disorder

Friedlander AH, Yagiela JA, Mahler ME, Rubin R.
J Am Dent Assoc. 2007 Apr;138(4):475-82.
http://jada.ada.org/cgi/content/full/138/4/475

BACKGROUND: Few published reports in the dental literature have focused on adult attention-deficit/hyperactivity disorder (ADHD) and its dental implications. TYPES OF STUDIES REVIEWED: The authors conducted a MEDLINE search for the period 2000 through 2005 using the terms "adult" and "attention-deficit" to define ADHD's pathology, medical treatment and dental implications. RESULTS: ADHD is a developmental condition that affects slightly more than 4 percent of the adult U.S. population. Its symptoms include inattention, hyperactivity and impulsivity that can cause personal, social, occupational and leisure-time dysfunction. Medications used to treat the disorder include stimulants, selective noradrenergic uptake inhibitors and tricyclic antidepressants. CLINICAL IMPLICATIONS: The oral health of people with ADHD may be compromised by inattention and impulsivity that impair home care regimens and can lead to cigarette addiction, which may cause oral cancer and damage the periodontium, and excessive ingestion of caffeinated sugar-laden soft drinks that promote dental caries. To safely care for this patient population, dentists must be familiar with the stimulant and nonstimulant medications used to treat adult ADHD, because these drugs can cause adverse orofacial and systemic reactions and interact adversely with dental therapeutic agents.
PMID: 17403737


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