The validity and reliability of the diagnosis of hyperkinetic disorders in the Danish Psychiatric Central Research Registry

TY - JOUR

T1 - The validity and reliability of the diagnosis of hyperkinetic disorders in the Danish Psychiatric Central Research Registry

AU - Mohr-Jensen, C

AU - Koch, S Vinkel

AU - Briciet Lauritsen, M

AU - Steinhausen, H-C

N1 - Copyright © 2016 Elsevier Masson SAS. All rights reserved.

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Objective: To validate the diagnosis of hyperkinetic disorders (HD) in the Danish Psychiatric Central Research Registry (DPCRR) for children and adolescents aged 4 to 15 given in the years 1995 to 2005. Method: From a total of 4568 participants, a representative random subsample of n = 387 patients were used to validate the diagnosis. Patient files were systematically scored for the presence of ICD-10 criteria for HD and oppositional defiant disorder/conduct disorder (ODD/CD; F91). Further to this, an inter-rater reliability study was also conducted, whereby two experienced child and adolescent psychiatrists who were blind to patients discharge diagnoses, rated a random subsample of n = 101 participants. Results: Information was available for 372 out of 387 patients. Out of n = 372 available files, n = 324 (86.8%) were evaluated to fulfil diagnostic criteria for HD. Due to missing information it was not possible to reach a conclusion for 5.1% of the cases, 3.8% of the diagnoses were registration errors, and in 4.3% of the files the diagnosis had to be rejected. Inter-rater agreement was high (κ = 0.83, z = 10.9, P < .001). The validity of hyperkinetic disorders, unspecified (F90.9) was lower and comorbid CD/ODD were under-diagnosed in the sample. All participants fulfilling HD criteria also fulfilled DSM-5-criteria for ADHD. Conclusion: The risk of misclassification of patients with HD in the DPCRR is relatively low, with the exception of the diagnosis of hyperkinetic disorders, unspecified (F90.9).

AB - Objective: To validate the diagnosis of hyperkinetic disorders (HD) in the Danish Psychiatric Central Research Registry (DPCRR) for children and adolescents aged 4 to 15 given in the years 1995 to 2005. Method: From a total of 4568 participants, a representative random subsample of n = 387 patients were used to validate the diagnosis. Patient files were systematically scored for the presence of ICD-10 criteria for HD and oppositional defiant disorder/conduct disorder (ODD/CD; F91). Further to this, an inter-rater reliability study was also conducted, whereby two experienced child and adolescent psychiatrists who were blind to patients discharge diagnoses, rated a random subsample of n = 101 participants. Results: Information was available for 372 out of 387 patients. Out of n = 372 available files, n = 324 (86.8%) were evaluated to fulfil diagnostic criteria for HD. Due to missing information it was not possible to reach a conclusion for 5.1% of the cases, 3.8% of the diagnoses were registration errors, and in 4.3% of the files the diagnosis had to be rejected. Inter-rater agreement was high (κ = 0.83, z = 10.9, P < .001). The validity of hyperkinetic disorders, unspecified (F90.9) was lower and comorbid CD/ODD were under-diagnosed in the sample. All participants fulfilling HD criteria also fulfilled DSM-5-criteria for ADHD. Conclusion: The risk of misclassification of patients with HD in the DPCRR is relatively low, with the exception of the diagnosis of hyperkinetic disorders, unspecified (F90.9).

KW - Journal Article

U2 - 10.1016/j.eurpsy.2016.01.2427

DO - 10.1016/j.eurpsy.2016.01.2427

M3 - Journal article

C2 - 27061373

SN - 0924-9338

VL - 35

SP - 16

EP - 24

JO - European Psychiatry

JF - European Psychiatry

ER -