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ADHD subtypes

Alberto José Cerrillo-Urbina, Antonio García-Hermoso, Vicente Martínez-Vizcaíno, María Jesús Pardo-Guijarro, Abel Ruiz-Hermosa, Mairena Sánchez-López
BACKGROUND: The aims of our study were to: (i) determine the prevalence of children aged 4 to 6 years with probable Attention-Deficit/Hyperactivity Disorder (ADHD) symptoms in the Spanish population; and (ii) analyse the association of probable ADHD symptoms with sex, age, type of school, origin (native or foreign) and socio-economic status in these children. METHODS: This cross-sectional study included 1189 children (4 to 6 years-old) from 21 primary schools in 19 towns from the Ciudad Real and Cuenca provinces, Castilla-La Mancha region, Spain...
March 15, 2018: BMC Pediatrics
Kim C M Bul, Lisa L Doove, Ingmar H A Franken, Saskia Van der Oord, Pamela M Kato, Athanasios Maras
OBJECTIVE: The aim of the current study was to identify which subgroups of children with Attention Deficit Hyperactivity Disorder (ADHD) benefitted the most from playing a Serious Game (SG) intervention shown in a randomized trial to improve behavioral outcomes. METHOD: Pre-intervention characteristics [i.e., gender, age, intellectual level of functioning, medication use, computer experience, ADHD subtype, severity of inattention problems, severity of hyperactivity/impulsivity problems, comorbid Oppositional Defiant Disorder (ODD) and Conduct Disorder (CD) symptoms] were explored as potential moderators in a Virtual Twins (VT) analysis to identify subgroups for whom the SG intervention was most effective...
2018: PloS One
Cheima Bouziane, Matthan W A Caan, Hyke G H Tamminga, Anouk Schrantee, Marco A Bottelier, Michiel B de Ruiter, Sandra J J Kooij, Liesbeth Reneman
Several diffusion tensor imaging (DTI) studies in attention deficit hyperactivity disorder (ADHD) have shown a delay in brain white matter (WM) development. Because these studies were mainly conducted in children and adolescents, these WM abnormalities have been assumed, but not proven to progress into adulthood. To provide further insight in the natural history of WM maturation delay in ADHD, we here investigated the modulating effect of age on WM in children and adults. 120 stimulant-treatment naive male ADHD children (10-12 years of age) and adults (23-40 years of age) with ADHD (according to DSM-IV; all subtypes) were included, along with 23 age and gender matched controls...
2018: NeuroImage: Clinical
Hui-Feng Zhang, Lan Shuai, Jin-Song Zhang, Yu-Feng Wang, Teng-Fei Lu, Xin Tan, Jing-Xue Pan, Li-Xiao Shen
Background: Previous studies have found that schoolchildren with attention-deficit/hyperactivity disorder (ADHD) showed difficulties in neuropsychological function. This study aimed to assess neuropsychological function in Chinese preschoolers with ADHD using broad neuropsychological measures and rating scales and to test whether the pattern and severity of neuropsychological weakness differed among ADHD presentations in preschool children. Methods: The 226 preschoolers (163 with ADHD and 63 controls) with the age of 4-5 years were included and assessed using the Behavior Rating Scale of Executive Function-Preschool Version (BRIEF-P) and a series of tests to investigate neuropsychological function...
March 20, 2018: Chinese Medical Journal
V Richarte, K Rosales, M Corrales, M Bellina, C Fadeuilhe, E Calvo, P Ibanez, C Sanchez-Mora, M Ribases, J A Ramos-Quiroga
INTRODUCTION: Attention deficit hyperactivity disorder (ADHD) has a complex aetiology, mainly attributed to a number of susceptibility genes and environmental factors. Genetic association studies, however, have been inconsistent and have identified genetic variants with a moderate effect that explain a small proportion of the estimated inheritability of the disorder (< 10%). Recent studies suggest that the gut microbiota and diet play an important role in the development and symptoms of different mental disorders...
March 1, 2018: Revista de Neurologia
Sara Boxhoorn, Eva Lopez, Catharina Schmidt, Diana Schulze, Susann Hänig, Christine M Freitag
Attention problems are observed in attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD). Most neuropsychological studies that compared both disorders focused on complex executive functions (EF), but missed to contrast basic attention functions, as well as ASD- and ADHD subtypes. The present study compared EF as well as basic attention functioning of children with the combined subtype (ADHD-C), the predominantly inattentive subtype (ADHD-I), and autism spectrum disorder without ADHD (ASD-) with typically developing controls (TD)...
March 6, 2018: European Child & Adolescent Psychiatry
Nilfer Sahin, Hatice Altun, Ergül Belge Kurutas, Damla Balkan
Objective: In this study, we aimed to evaluate vitamin D and vitamin D receptor levels in children with attention-deficit/hyperactivity disorder (ADHD). Patients and methods: In this cross-sectional study, a total of 80 children including 40 ADHD patients (aged 6-12 years; 28 males and 12 females) and 40 age-, sex-, and season of blood collection-matched controls (aged 6-12 years; 25 males and 15 females) were enrolled. Serum vitamin D and vitamin D receptor levels and calcium, phosphorus, and alkaline phosphatase were measured...
2018: Neuropsychiatric Disease and Treatment
Tanya E Froehlich, Stephen P Becker, Todd G Nick, William B Brinkman, Mark A Stein, James Peugh, Jeffery N Epstein
OBJECTIVE: To examine whether sluggish cognitive tempo (SCT) symptomatology moderates dose response to methylphenidate and whether the impact of SCT on medication response is distinct from attention-deficit/hyperactivity disorder (ADHD) subtype effects. METHODS: Stimulant-naive children with ADHD predominantly inattentive type (ADHD-I; n = 126) or ADHD combined type (ADHD-C; n = 45) aged 7-11 years were recruited from the community from September 2006 to June 2013 to participate in a prospective, randomized, double-blind, 4-week crossover trial of long-acting methylphenidate...
February 27, 2018: Journal of Clinical Psychiatry
Yoichiro Kubo, Tetsufumi Kanazawa, Yasuo Kawabata, Koyuki Tanaka, Tatsushi Okayama, Miho Fujta, Atsushi Tsutsumi, Shingo Yokota, Hiroshi Yoneda
OBJECTIVE: The prevalence of attention deficit/hyperactivity disorder (ADHD) in school-age children is 7.2%, and ADHD is divided into clinical subtypes. METHODS: The current study explored whether specific cognitive profiles as assessed using the Wechsler Intelligence Scale for Children (WISC)-IV could be obtained for each clinical ADHD subtype (ADHD-Inattentive type and ADHD-Combined type) and investigated the correlation between WISC scores and parental age at their children's birth or birthweight...
February 2018: Psychiatry Investigation
Hisham Ramy, Mona El Sheikh, Marwa Sultan, Rasha Bassim, Maissa Eid, Ramy Ali, Marwa El Missiry
BACKGROUND: Attention deficit hyperactivity disorder (ADHD) is one of the most common childhood psychiatric disorders. Severity of symptoms is associated with more behavioral problems, poor academic performance, and persistence of symptoms into adulthood. METHODS: To examine the clinical and social correlates that may be identified as risk factors associated with ADHD severity in a sample of adolescent ADHD school students. A total of 925 students were recruited from two public and two private schools from eastern Cairo...
February 1, 2018: Clinical Child Psychology and Psychiatry
Mamun Al-Amin, Artyom Zinchenko, Thomas Geyer
OBJECTIVE: Attention-deficit hyperactivity disorder (ADHD) is accompanied by reduction of total hippocampal volume. However, disorder-related fine-grained structural alterations of hippocampal subfields remain unclear. METHOD: Here we compared hippocampal subfield volumes in a large sample of patients with ADHD and healthy controls. We used T1-weighted structural 3-Tesla MRI images of 880 individuals (7-21 years old) from the ADHD-200 database. The images were acquired from 553 healthy individuals and 327 children and adolescents with combined (N = 196) and inattentive (N = 131) ADHD subtypes...
February 7, 2018: Brain Research
Huey-Ling Chiang, Wei-Chih Kao, Mei-Chun Chou, Wen-June Chou, Yen-Nan Chiu, Yu-Yu Wu, Susan Shur-Fen Gau
School dysfunction is observed in youths with autism spectrum disorder (ASD), but the factors moderating their school dysfunction have not been well explored. This study investigated school functions in youths with ASD in Taiwan, stratified by personal characteristics including demographics, ASD subtypes, intelligence profiles, and the presence of attention-deficit hyperactivity disorder (ADHD). We recruited 160 youths (aged 6-18 years, 87.5% boys) with a clinical diagnosis of ASD and 160 age and gender-matched typically developing (TD) youths...
February 10, 2018: Autism Research: Official Journal of the International Society for Autism Research
Annet Bluschke, Jacqueline Schuster, Veit Roessner, Christian Beste
It is far from conclusive what distinguishes the inattentive (ADD) and the combined (ADHD-C) subtype of ADHD on the neuronal level. Theoretical considerations suggest that especially interval timing processes may dissociate these subtypes from each other. Combining high-density EEG recordings with source localization analyses, we examine whether there are ADHD-subtype specific modulations of neurophysiological processes subserving interval timing in matched groups of ADD (n = 16), ADHD-C (n = 16) and controls (n = 16)...
February 1, 2018: Scientific Reports
Faten N AlZaben, Mohammad G Sehlo, Waleed A Alghamdi, Haythum O Tayeb, Doaa A Khalifa, Abdulrahman T Mira, Abdulaziz M Alshuaibi, Mosab A Alguthmi, Ahmad A Derham, Harold G Koenig
To determine the prevalence of attention deficit hyperactivity disorder (ADHD), subtypes of ADHD, and psychiatric, academic, and behavioral comorbidity in public primary school students in Jeddah, Saudi Arabia.  Methods: This is a cross-sectional study. A simple random sample of 6 primary government schools in Jeddah, Saudi Arabia, was identified (3 male, 3 female), and a random sample of classes in each of grades 1-6 were selected. Between July and November 2016, teachers in these classes were asked to complete the Vanderbilt ADHD scale on all students in their classes...
January 2018: Saudi Medical Journal
Nicholas I Goldenson, Rubin Khoddam, Matthew D Stone, Adam M Leventhal
Objective: Recently, use of alternative tobacco products, such as electronic cigarettes (e-cigarettes) and hookah (water-pipe tobacco), has increased among adolescents. It is unknown whether attention-deficit hyperactivity disorder (ADHD) symptoms are associated with initiation of alternative tobacco product use. Methods: Ninth grade high school students who never used any tobacco product at baseline (N = 1,921) participated in a longitudinal survey from 2014 to 2015...
January 2, 2018: Journal of Pediatric Psychology
Ibrahim Durukan, Koray Kara, Mahmoud Almbaideen, Dursun Karaman, Hesna Gül
BACKGROUND: Recent studies showed that individuals with neurodevelopmental disorders and their relatives have problems to express and recognize emotions but there is a lack of studies concerning alexithymia levels and relationships between parental alexithymia and depression-anxiety symptoms in these groups. OBJECTIVE: We aimed to determine alexithymia, depression, anxiety levels of parents in children with pervasive developmental disorders and ADHD, also examine if there is a positive correlation between child's neurodevelopmental problem's severity and parental scores...
December 31, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
Lu Liu, Wai Chen, Li Sun, Jia Cheng, Yi Su, Daniel Rudaizky, Hai-Mei Li, Li Yang, Qiu-Jin Qian, Yu-Feng Wang
OBJECTIVE: This study evaluated the concurrent validity of emotional lability (EL) in children with ADHD. METHOD: A total of 2,015 children with ADHD and 745 typically developed controls (TDCs) were assessed and compared on EL. RESULTS: ADHD participants expressed higher EL scores than TDCs, not influenced by gender or IQ. Higher levels of EL symptoms were found in children with comorbid oppositional defiant disorder (ODD) and with ADHD-combined subtype...
December 1, 2017: Journal of Attention Disorders
Jayde T Hooven, Benjamin N Fogel, James G Waxmonsky, Deepa L Sekhar
The American Academy of Pediatrics published attention deficit hyperactivity disorder (ADHD) guidelines, but significant variability exists in care. This exploratory study aimed to understand barriers to compliance with primary care office contacts for ADHD medication management. The study was conducted at a single academic medical center via retrospective chart review between 6/1/15 and 5/31/16 in combination with telephone interviews. Participants included 306 children 6-12 years old with an ADHD-related ICD-9/ICD-10 diagnosis...
December 8, 2017: Attention Deficit and Hyperactivity Disorders
Fang-Fen Yuan, Xue Gu, Xin Huang, Yu-Wei Hou, Yan Zhong, Jun Lin, Jing Wu
Attention-deficit/hyperactivity disorder (ADHD) is an early onset childhood neurodevelopmental disorder with high heritability. A number of genetic risk factors and environment factors have been implicated in the pathogenesis of ADHD. Genes encoding for subtypes of voltage-dependent K channels (Kv) and accessory proteins to these channels have been identified in genome-wide association studies (GWAS) of ADHD. We conducted a two-stage case-control study to investigate the associations between five key genes (KChIP4, KChIP1, DPP10, FHIT, and KCNC1) and the risk of developing ADHD...
2017: PloS One
Huaiqiang Sun, Ying Chen, Qiang Huang, Su Lui, Xiaoqi Huang, Yan Shi, Xin Xu, John A Sweeney, Qiyong Gong
Purpose To identify cerebral radiomic features related to diagnosis and subtyping of attention deficit hyperactivity disorder (ADHD) and to build and evaluate classification models for ADHD diagnosis and subtyping on the basis of the identified features. Materials and Methods A consecutive cohort of 83 age- and sex-matched children with newly diagnosed and never-treated ADHD (mean age 10.83 years ± 2.30; range, 7-14 years; 71 boys, 40 with ADHD-inattentive [ADHD-I] and 43 with ADHD-combined [ADHD-C, or inattentive and hyperactive]) and 87 healthy control subjects (mean age, 11...
November 22, 2017: Radiology
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