TY - JOUR
T1 - ADHD in a school sample of Brazilian adolescents
T2 - A study of prevalence, comorbid conditions, and impairments
AU - Rohde, Luis A.
AU - Biederman, Joseph
AU - Busnello, Elus A.
AU - Zimmermann, Heloisa
AU - Schmitz, Marcelo
AU - Martins, Silvia
AU - Tramontina, Silza
N1 - Funding Information:
Accrptedjanuary 5, /999. Dr. Biederman is Chief Pediatric Psychopf",rmdcoloKY Unit, Massacbusats Genera] Hospital, and Professor of Psychiatry. Haruard Medical School, Boston. Dr. Busnello is Professor ofPsychiatrv: Dr. Rohdeis Professor ofChild Psvcbiatrv: Drs. Zimmermann, Schmitz. Martins, and Tramontina are residents in Child andAdolescentPsychiatry, FederalUniversityofRioGrandedoSuI,Brazil. This work was partially supported by II research [und of the Hospital de Clinicasde PortoAlegre. Reprintrequests to Dr. Rohde, Serviro de Psiquiatria tid Inplllcid eAdolescrncia. Hospitalde Clinicasde Porto Alc.,!!,e, Rua Ramiro Barcelos, 2350, Porto Alegre, Rio Grandedo SuI, Brazil 90035·003.
PY - 1999
Y1 - 1999
N2 - Objective: To evaluate the prevalence, comorbid conditions, and impairments of attention-deficit/hyperactivity disorder (ADHD) among young adolescents in Porto Alegre, Brazil. Method: 1,013 students aged 12 to 14 years were evaluated at 64 state schools, using a screening instrument based on the 18 DSM-IV ADHD symptoms. All positive screened students (n = 99) and a random subset of negative screened subjects (n = 92) had a psychiatric evaluation carried out within a hospital setting or at home. Results: The prevalence of ADHD was estimated to be 5.8% (95% confidence interval = 3.2- 10.6), and the comorbidity with other disruptive behavior disorders was high (47.8%). Youths with ADHD (n = 23) had significantly higher rates of school repetitions, suspensions, and expulsions (p < .01) than controls (n = 168). No association was identified between ADHD and alcohol, marijuana, and inhalant use. Conclusion: The results extend to adolescents well-documented findings in children, indicating that ADHD is quite prevalent in early adolescence and affected youths are at high risk for impairment and dysfunction in multiple domains.
AB - Objective: To evaluate the prevalence, comorbid conditions, and impairments of attention-deficit/hyperactivity disorder (ADHD) among young adolescents in Porto Alegre, Brazil. Method: 1,013 students aged 12 to 14 years were evaluated at 64 state schools, using a screening instrument based on the 18 DSM-IV ADHD symptoms. All positive screened students (n = 99) and a random subset of negative screened subjects (n = 92) had a psychiatric evaluation carried out within a hospital setting or at home. Results: The prevalence of ADHD was estimated to be 5.8% (95% confidence interval = 3.2- 10.6), and the comorbidity with other disruptive behavior disorders was high (47.8%). Youths with ADHD (n = 23) had significantly higher rates of school repetitions, suspensions, and expulsions (p < .01) than controls (n = 168). No association was identified between ADHD and alcohol, marijuana, and inhalant use. Conclusion: The results extend to adolescents well-documented findings in children, indicating that ADHD is quite prevalent in early adolescence and affected youths are at high risk for impairment and dysfunction in multiple domains.
KW - Attention-deficit/hyperactivity disorder
KW - Hyperactivity
KW - Inattention
UR - http://www.scopus.com/inward/record.url?scp=0033043278&partnerID=8YFLogxK
U2 - 10.1097/00004583-199906000-00019
DO - 10.1097/00004583-199906000-00019
M3 - Article
AN - SCOPUS:0033043278
SN - 0890-8567
VL - 38
SP - 716
EP - 722
JO - Journal of the American Academy of Child and Adolescent Psychiatry
JF - Journal of the American Academy of Child and Adolescent Psychiatry
IS - 6
ER -