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6.55 A META-ANALYSIS OF POTENTIALLY MODIFIABLE RISK FACTORS FOR CHILDHOOD ATTENTION-DEFICIT/HYPERACTIVITY DISORDER: CHEMICAL EXPOSURES AND FACTORS RELATED TO PARENTING Joseph R. Holbrook, PhD, Centers for Disease Control and Prevention, 4770 Buford Highway, E-88, Atlanta, GA 30341; Angelika Hartl Claussen, PhD; Rebecca H. Bitsko, PhD; Mary E. Mortensen, MD; Brenna S. O’Masta, MPH; Brion S. Maher, PhD; Audrey A. Cerles, BA; Katherine McGowan; Georgina Peacock, MD; Margaret A. Rush, PhD Objectives: Both the physical and socioemotional environment impact child development, and risk factors in each of these categories may increase risk of ADHD. As part of a larger ADHD risk factor meta-analysis project, this paper reports on meta-analyses conducted to examine the potential impact of 1) early exposure to specific chemicals and 2) parenting factors on the later development of ADHD or ADHD symptoms. Methods: A review of the chemical exposure literature and parenting literature respectively identified 51 and 26 studies with sufficient information to include in the analyses. Individual risk factors that were evaluated in three or more studies were analyzed. Chemical exposures included: Brominated flame retardants (BFRs), which can be present in household items, such as upholstery, carpet padding, and mattresses; Lead (may be present in paint in older homes); Chemicals potentially ingested through the diet, including cadmium, polychlorinated biphenyls (PCBs), and hexachlorobenzene; and Organophosphates, a common group of pesticides. Parenting factors included: Parenting quality (sensitivity/warmth, intrusion/reactivity, and negative/harsh discipline); and Maltreatment (general maltreatment and physical abuse). Results: Childhood lead exposure was the most heavily studied chemical exposure, and it was consistently strongly associated with ADHD symptoms. Other statistically significant chemical exposures were organophosphates, PCBs, and BFRs. All of the parenting factors showed a significant association with ADHD, with the exception of physical abuse and negative/harsh discipline. Conclusions: Numerous chemical exposures and parenting factors were found through this meta-analysis to be associated with modest, increased risk of ADHD. Findings support the continued need for primary prevention and targeted screening for childhood exposure to lead and other chemicals as potential avenues to prevent or reduce ADHD symptomatology among children. In addition, supporting positive parenting may represent an opportunity to improve ADHD symptoms.
EPI PAT RF http://dx.doi.org/10.1016/j.jaac.2016.09.374
6.56 DIAGNOSTIC STABILITY AND FUNCTIONAL OUTCOMES OF CHILDREN WITH ATTENTIONDEFICIT/HYPERACTIVITY DISORDER AT AGE 10 YEARS: A THREE-YEAR CONTROLLED LONGITUDINAL STUDY Daryl Efron, MD, Murdoch Childrens Research Institute, Flemington Road, Parkville, Melbourne, 3052, Australia; Jan Nicholson, PhD; Vicki Anderson, PhD; Philip Hazell, MD; Brad Jongeling, MD; Tim Silk, PhD; Obioha C. Ukoumunne, PhD; Alisha Gulenc; Emma Sciberras, PhD Objectives: Most longitudinal ADHD studies have examined clinical cohorts, often with a broad age range at baseline precluding the measurement of developmentally sensitive outcomes. This community-based study examined the diagnostic stability and three year outcomes of a sample of children with ADHD and non-ADHD controls recruited at age 7, and investigated differences in outcomes by ADHD persistence and gender. Methods: Children with ADHD (n¼179) and matched non-ADHD controls (n¼212) aged 7 were originally recruited through 43 Melbourne schools,
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using a two-stage screening (parent and teacher Conners 3 ADHD index) and case confirmation (Diagnostic Interview Schedule for Children, Version IV; [DISC-IV]) procedure. Two-thirds in each group were boys. Children were reassessed 3 years later (mean age: 10.5; SD¼.5) to examine diagnostic persistence (DISC-IV), mental health disorders (DISC-IV), academic performance (Wide Range Achievement Test 4) and social functioning (parent or teacher reported Peer Problems on Strengths and Difficulties Questionnaire). Linear and logistic regression were used for all analyses. Results: Sixty-seven percent of children with ADHD continued to meet diagnostic criteria for ADHD three years later. Children with ADHD at age 7 had more externalizing (49 percent vs 10 percent, p<0.001), anxiety (22 percent vs 5 percent, p<0.01) and mood (6 percent vs 0 percent, p¼0.03) disorders at follow-up, as well as poorer word reading (mean difference (MD) 10.6; 95% CI 7.4, 13.8; p<0.001), math performance (MD 12.2; 95% CI 9.1, 15.3; p<0.001) and social functioning (71 vs 27 percent; p<.001) compared to non-ADHD controls. Compared to children with remitted ADHD, children with persistent ADHD had increased odds of externalizing disorders (OR 3.5; 95% CI 1.4, 8.6; p¼0.007), however had better word reading (MD 5.5; 95% CI 0.2, 10.8; p¼.04). Outcomes were similar for boys and girls with ADHD, except that boys were more likely to have persistent ADHD than girls (74 vs 50 percent; p¼.01). Conclusions: One-third of children identified with ADHD at age 7 do not meet ADHD diagnostic criteria three years later. Children with ADHD identified at age 7 have substantially poorer mental health, academic and social outcomes than controls at age 10.
ADHD DEV LONG Supported by the National Health and Medical Research Council Project grant 1008522 http://dx.doi.org/10.1016/j.jaac.2016.09.375
6.57 COMPLEXITY OF IDENTIFYING ATTENTIONDEFICIT/HYPERACTIVITY DISORDER AND COMORBIDITIES IN A DISADVANTAGED LATINO POPULATION Andrea Spencer, MD, Psychiatry, Massachusetts General Hospital Chelsea Healthcare Center, 151 Everett Ave, Chelsea, MA 02150; Cindy Chiang, BA; Natalie Plasencia, BA; Joseph Biederman, MD; Carolina Gebara, MD; Rebecca Cronin, MD; Mary Lyons Hunter, PhD; Michael Murphy, EdD; Michael Jellinek, MD Objectives: Underserved, minority children are at risk for under-identification of ADHD and comorbidities, and suffer disproportionately from poor outcomes. The goal of this study was to evaluate the clinical validity of parent report screening tools to identify ADHD and comorbidities in a sample of socioeconomically disadvantaged Latino children referred for psychiatric consultation, and to examine the effect of demographics on scores and diagnoses. Methods: Variables extracted by chart review included demographics, diagnoses, and standardized questionnaire results. Analyses assessed agreement between the Pediatric Symptom Checklist Attention Scale (PSC-AS), Child Behavior Checklist ADHD Subscale (CBCL-ADHD), and ADHD diagnosis by a child psychiatrist. Results: Over half of patients were referred for ADHD symptoms, and ninety of the 157 patients evaluated were diagnosed with ADHD, almost all with comorbidities and more than half with multiple comorbidities. Patients with non-English speaking parents were less likely to have completed PSC’s and had lower PSC-AS scores. All measures using recommended cut-offs had low sensitivity for ADHD. The PSC-35 had the strongest association with ADHD diagnosis and was least affected by comorbidity, while the CBCL-ADHD scale was more sensitive to highly comorbid ADHD. Using Receiver Operating Characteristics (ROC) curve analysis with the PSC-AS data, a cut-off of 3 provided the most balanced sensitivity and specificity trade-off (sensitivity 0.87, specificity 0.49). Conclusions: Findings suggest that parent-report tools using published cutoff scores have low sensitivity in this population and that non-English speaking parents may under-report symptoms. Therefore, disadvantaged
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Latino children with ADHD may not be recognized and not treated. Pediatricians should consider using the PSC-35 to screen for ADHD with a lower cut-off point on the PSC AS subscale, followed by careful evaluation to assess for comorbidities. Further research is needed to improve the evaluation of ADHD in disadvantaged, Latino children, and to understand the impact of acculturation and education on diagnosis.
ADHD CC ETHN Supported by the Fuss Family Fund and the Louis Gerstner III Research Scholar Award http://dx.doi.org/10.1016/j.jaac.2016.09.376
6.58 SUBGROUPS IDENTIFICATION OF ATTENTION-DEFICIT/HYPERACTIVITY DISORDER IN DIMENSIONS OF SYMPTOM SEVERITY AND INTELLIGENCE USING TOPOLOGICAL DATA ANALYSIS AND THEIR FUNCTIONAL NETWORK MODULAR ORGANIZATIONS Eunjoo Kim, MD, Department of Psychiatry, Yonsei University, 250 Seoungsan-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea; Jungeun Song, MD; Sunghyon Kyeong; Seul Bee Lee Objectives: ADHD is a clinically heterogenous condition, with deficits in multiple neuropsychological processes and related brain systems. The identification of subgroups with distinct patterns of clinical manifestation may lead to development of better-targeted intervention for individualized treatment. The two main objectives of this study were to: 1) to identify distinct clinical phenotypes based on a symptom severity and intelligence quotient (IQ) of children and adolescents with ADHD; and 2) to investigate whether neuroimaging findings validates identified phenotypes. Methods: Using resting state fMRI data from the ADHD-200 Consortium, 90 Typically developing controls (TDCs) and 114 children with ADHD from the NYU dataset and 100 TDCs and 71 children with ADHD from the PKU dataset was included in this study. Parent-rated ADHD symptom ratings and IQ were used as input features in topological data analysis (TDA) to identify subgroups within the sample. External validators including resting- state functional connectivity and network segregation and integration measures were reported for each subgroups of the ADHD sample to address the biological meaningfulness of the identified subtypes. Results: The TDA suggested three subgroups: One TDC and two ADHD, labeled as mild ADHD (m ADHD) and severe ADHD (s ADHD) groups. The brain networks of each group demonstrated that sADHD subgroup showed decreased functional integration and increased functional segregation compared with both mADHD and controls. In the analysis of functional network modular organization, the s ADHD group displayed increased intramodule connectivity within the default mode network (DMN), visual network (VN), basal ganglia network (BGN) and a decreased inter-module connectivity between the DMN and VN, and an increased inter-module functional connectivity density (FCD)s between the salience network (SN) and temporal network (TN), and between the executive control network (ECN) and BGN, relative to TDC and m ADHD group. Conclusions: We demonstrated that the use of common clinical phenotypes (symptom severity and IQ) and TDA is an informative approach for understanding the heterogeneity in ADHD. Also, whole-brain intrinsic functional connectivity showed that our classification of m ADHD and s ADHD group may be neurobiologically valid.
ADHD DAM IMAGS http://dx.doi.org/10.1016/j.jaac.2016.09.377
6.59 EFFECTS OF LONG-ACTING METHYLPHENIDATE ON NESFATIN-1 LEVELS IN MALE CHILDREN WITH ATTENTION-DEFICIT/ HYPERACTIVITY DISORDER
Hamiyet _Ipek Toz, MD, Child and Adolescent Psychiatry Department, Bakirkoy Mental Health Research and Training Hospital, Yedikule Mh. Haci Evhaddin Cd., Atilgan Sitesi. A1 Blok. € D:10, Istanbul 34290, Turkey; Ozhan Yalcin, MD; Hilal Adaletli, MD
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Objectives: Underlying pathophysiological mechanisms of appetite and weight loss or decreased rate of weight gain related with psychostimulants for the treatment of ADHD have not been fully clarified yet. Nesfatin-1, discovered in recent years, released by mainly hypothalamus, is a peptide responsible for the appetite regulation, weight loss and metabolic regulation. We aimed to investigate whether there is an association between nesfatin-1 and etiopathogenesis of ADHD, treatment response and metabolic side effects of MPH by comparing pre-and post-treatment serum levels of Nesfatin1 in prepubertal boys with ADHD. Methods: 33 boys who were diagnosed with ADHD according to DSM IV-TR criterias in Bakirkoy Mental Health Research and Training Hospital, Child and Adolescent Psychiatry outpatient clinic, were included in the study. All participants were already applied to clinical interview and K-SADS. The appetite level of the patients was evaluated by Turkish version of Children’s Eating Behaviour Questionnaire (CEBQ). ADHD symptoms were evaluated by Conners’ Teacher and Parent Rating Scale. The patients’ nesfatin-1 levels, biochemical metabolic parameters, anthropometric measures were determined before and after MPH treatment. Results: There was no significant change in serum Nesfatin-1 levels between pre-and post-treatment in the patient group. There were significant decreases in weight, body mass index (BMI), BMI percentile, waist circumferences (WC), WC percentiles of patients after the treatment. There was no significant correlation between Nesfatin-1 levels and BMI, BMI percentile, WC. Food responsiveness and enjoyment of food subscales scores and total scores of CEBQ after the treatment were significantly lower than the pretreatment levels. There was no significant correlation between serum nesfatin-1 level and the subscales of CEBQ both pre-and post-treatment except for the slowness in eating subscale of CEBQ. Conclusions: In light of the findings of our study, although MPH associated loss of appetite was observed, there was no clear evidence that this anorexic side effect is through Nesfatin directly. Although the variations in anthropometric body measures after the treatment was observed, there was no clear evidence that these changes could be related to direct effect of Nesfatin.
ADHD MAE STIM http://dx.doi.org/10.1016/j.jaac.2016.09.378
6.60 DEMOGRAPHICS OF CHILDREN WITH ATTENTION-DEFICIT/HYPERACTIVITY DISORDER AND TREATMENT MODALITIES: AN ANALYSIS OF NATIONAL AMBULATORY MEDICAL CARE SURVEY DATA FROM 2009 - 2012 Jaclyn Dietzold, MD, Psychiatry, Temple University, 100 E. Lehigh Ave, MAB Building, Suite 105, Philadelphia, PA 19125; Anisha Garg, MD, Temple University, 100 E. Lehigh Ave, MAB Building, Suite 105, Philadelphia, PA 19125; Ian Peters, DO, MPH; Christopher Combs, PhD; Rachel M. Peters, MPH; Mary F. Morrison, MD, MS Objectives: Wide variation in ADHD diagnostic and treatment practices exists across providers in the US for children. This study describes the demographics of children with ADHD, and examines what factors influenced treatment. Methods: The National Ambulatory Medical Care Survey (NAMCS) is a comprehensive survey performed yearly on outpatient US visits. For this study, NAMCS data from 2009 to 2012 was used. Participants were included if they were between the ages of 5 and 18 and carried a diagnosis of ADHD (ICD9 codes 314.00/314.01). Treatment was considered as receiving a stimulant, psychotherapy/mental health counselling, or both. Data was analyzed in SAS 9.1 by chi-squared tests. Results: From 2009 to 2012 there were 53,051,522 outpatient encounters involving children with ADHD. Of those visits, 65 percent were male, 87 percent were white, 59.9 percent were between the ages of 13-18, and most had either private insurance (54.1 percent) or Medicaid/Children’s Health Insurance Program (CHIP) (26.7 percent). About 36.6 percent had a
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