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The NIMH Diagnostic Interview Schedule for Children: Parent is a highly structured interview designed to assess DSM-IV psychiatric disorders and symptoms in children and adolescents aged 6 to 17 years. The DISC was designed to be given by lay interviewers for epidemiological research. It has a parent and a child version, both of which ask about the child's psychiatric symptoms.
The NIMH Diagnostic Interview Schedule for Children is a highly structured interview designed to assess DSM-IV psychiatric disorders and symptoms in children and adolescents aged 6 to 17 years. The DISC was designed to be given by lay interviewers for epidemiological research. It has a parent and a child version, both of which ask about the child's psychiatric symptoms. The interview was administered using a laptop computer (Computerized DISC, or CDISC). The DISC items are organized by diagnosis. The parents are asked if their child had specific symptoms during the past year, and answer follow-up questions in case of positive endorsement. The DISC generates symptoms counts and diagnoses. The diagnoses covered as part of the Fast Track data collection were: simple and social phobia, separation anxiety, panic disorder, conduct disorder, oppositional defiant disorder, attention deficit/hyperactivity disorder, anorexia nervosa, bulimia, enuresis, encopresis, tic disorders, major depression, dysthymia, mania, hypomania and substance abuse/dependence. The responses to most of the DISC questions are coded as No (0), Yes (1), Not Applicable (8), or Don't know (9). They were then recoded so that both Not applicable and Don't know responses were rescored as No's.
The scoring procedures to create scales for the Fast Track data were mostly derived from the work of the DISC group at Columbia University (overseen by David Shaffer, M.D. Prudence Fisher, M.S. and John Piacentini, Ph.D). The variables names were changed to match Fast Track format, and some changes were made to the programming so that diagnosis scores would more closely match DSM criteria, or to limit missing data. Three types of summary scores were created from the DISC items, diagnosis, diagnosis + impairment and criterion count scores. Diagnosis variables are scored 1=meet diagnosis criteria, 0=does not meet the diagnosis criteria. Diagnosis + impairment variables are scored 1=subject has disorder and it caused some type of impairment in his/her life. 0=either did not meet the criteria, or met the criteria but had not impairment to his/her life. Finally, a criterion (or symptom) count variable is created that indicates the number of diagnostic criteria a subject met for a given disorder.
It is recommended that the analyst uses either the diagnosis variables in a categorical-type analyses or symptom counts for more continuous type analyses. There have been numerous studies using the CDISC that the analyst can refer to for comparison of results and method used.
Raw Dataset Name: PyY
Scored Dataset Name: CDSySPc
Anxiety, Mood, Conduct Disorder, Disruptive Behavior, Obsessive Compulsive, Oppositional Defiant, Panic, Separation Anxiety, Eating Disorder, Alcohol Abuse, Substance Abuse.