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Christopher Gillberg - One of the best experts on this subject based on the ideXlab platform.
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the autism tics ad hd and other comorbidities a tac Telephone Interview convergence with the child behavior checklist cbcl
Nordic Journal of Psychiatry, 2010Co-Authors: Sara Lina Hansson Hallerod, Tomas Larson, Ola Stahlberg, Eva Carlstrom, Carina Gillberg, Henrik Anckarsater, Maria Rastam, Paul Lichtenstein, Christopher GillbergAbstract:Objective: To compare Telephone Interview screening for child psychiatric/neuropsychiatric disorders using the inventory of Autism-Tics, Attention deficit/hyperactivity disorder (AD/HD) and other Comorbidities (A-TAC) with results from the Child Behavior Checklist (CBCL). Background: The A-TAC is a parent Telephone Interview focusing on autism spectrum disorders (ASDs) and co-existing problems, developed for lay Interviewers. Subjects and methods: A-TAC Telephone Interviews and CBCL questionnaires were obtained from parents of 106 Swedish twin pairs aged 9 and 12 years. Results: Correlations between A-TAC modules and CBCL scales aimed at measuring similar concepts were generally significant albeit modest, with correlation coefficients ranging from 0.30 through 0.55. Conclusion: The A-TAC has convergent validity with the CBCL in several problem areas, but the A-TAC also provides more detailed and specific assessments of ASD symptoms and related neuropsychiatric problems.
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The Autism - Tics, AD/HD and other Comorbidities inventory (A-TAC): further validation of a Telephone Interview for epidemiological research
BMC Psychiatry, 2010Co-Authors: Tomas Larson, Ola Stahlberg, Eva Carlstrom, Carina Gillberg, Henrik Anckarsater, Maria Rastam, Paul Lichtenstein, Björn Kadesjö, Christopher GillbergAbstract:Background Reliable, valid, and easy-to-administer instruments to identify possible caseness and to provide proxies for clinical diagnoses are needed in epidemiological research on child and adolescent mental health. The aim of this study is to provide further validity data for a parent Telephone Interview focused on Autism - Tics, Attention-deficit/hyperactivity disorder (AD/HD), and other Comorbidities (A-TAC), for which reliability and preliminary validation data have been previously reported. Methods Parents of 91 children clinically diagnosed at a specialized Child Neuropsychiatric Clinic, 366 control children and 319 children for whom clinical diagnoses had been previously assigned were Interviewed by the A-TAC over the phone. Interviewers were blind to clinical information. Different scores from the A-TAC were compared to the diagnostic outcome. Results Areas under ROC curves for Interview scores as predictors of clinical diagnoses were around 0.95 for most disorders, including autism spectrum disorders (ASDs), attention deficit/hyperactivity disorder (AD/HD), tic disorders, developmental coordination disorders (DCD) and learning disorders, indicating excellent screening properties. Screening cut-off scores with sensitivities above 0.90 (0.95 for ASD and AD/HD) were established for most conditions, as well as cut-off scores to identify proxies to clinical diagnoses with specificities above 0.90 (0.95 for ASD and AD/HD). Conclusions The previously reported validity of the A-TAC was supported by this larger replication study using broader scales from the A-TAC-items and a larger number of diagnostic categories. Short versions of algorithms worked as well as larger. Different cut-off levels for screening versus identifying proxies for clinical diagnoses are warranted. Data on the validity for mood problems and oppositional defiant/conduct problems are still lacking. Although the A-TAC is principally intended for epidemiological research and general investigations, the instrument may be useful as a tool to collect information in clinical practice as well.
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the autism tics ad hd and other comorbidities inventory a tac further validation of a Telephone Interview for epidemiological research
BMC Psychiatry, 2010Co-Authors: Tomas Larson, Ola Stahlberg, Eva Carlstrom, Carina Gillberg, Henrik Anckarsater, Maria Rastam, Paul Lichtenstein, Björn Kadesjö, Christopher GillbergAbstract:Reliable, valid, and easy-to-administer instruments to identify possible caseness and to provide proxies for clinical diagnoses are needed in epidemiological research on child and adolescent mental health. The aim of this study is to provide further validity data for a parent Telephone Interview focused on Autism - Tics, Attention-deficit/hyperactivity disorder (AD/HD), and other Comorbidities (A-TAC), for which reliability and preliminary validation data have been previously reported. Parents of 91 children clinically diagnosed at a specialized Child Neuropsychiatric Clinic, 366 control children and 319 children for whom clinical diagnoses had been previously assigned were Interviewed by the A-TAC over the phone. Interviewers were blind to clinical information. Different scores from the A-TAC were compared to the diagnostic outcome. Areas under ROC curves for Interview scores as predictors of clinical diagnoses were around 0.95 for most disorders, including autism spectrum disorders (ASDs), attention deficit/hyperactivity disorder (AD/HD), tic disorders, developmental coordination disorders (DCD) and learning disorders, indicating excellent screening properties. Screening cut-off scores with sensitivities above 0.90 (0.95 for ASD and AD/HD) were established for most conditions, as well as cut-off scores to identify proxies to clinical diagnoses with specificities above 0.90 (0.95 for ASD and AD/HD). The previously reported validity of the A-TAC was supported by this larger replication study using broader scales from the A-TAC-items and a larger number of diagnostic categories. Short versions of algorithms worked as well as larger. Different cut-off levels for screening versus identifying proxies for clinical diagnoses are warranted. Data on the validity for mood problems and oppositional defiant/conduct problems are still lacking. Although the A-TAC is principally intended for epidemiological research and general investigations, the instrument may be useful as a tool to collect information in clinical practice as well.
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psychiatric Telephone Interview with parents for screening of childhood autism tics attention deficit hyperactivity disorder and other comorbidities a tac preliminary reliability and validity
British Journal of Psychiatry, 2005Co-Authors: Sara Lina Hansson, Carina Gillberg, Maria Rastam, Christopher Gillberg, Annika Svanstrom Rojvall, Henrik AnckarsaterAbstract:Background Reliable, valid and easily administered screening instruments would greatly facilitate large-scale neuropsychiatric research. Aims To test a parent Telephone Interview focused on autism – tics, attention-deficit hyperactivity disorder (ADHD) and other comorbidities (A–TAC). Method Parents of 84 children in contact with a child neuropsychiatric clinic and 27 control children were Interviewed. Validity and interrater and test – retest reliability were assessed. Results Interrater and test – retest reliability were very good. Areas under receiver operating characteristics curves between Interview scores and clinical diagnoses were around 0.90 for ADHD and autistic spectrum disorders, and above 0.70 for tics, learning disorders and developmental coordination disorder. Using optimal cut-off scores for autistic spectrum disorder and ADHD, good to excellent kappa levels for Interviews and clinical diagnoses were noted. Conclusions The A–TAC appears to be a reliable and valid instrument for identifying autistic spectrum disorder, ADHD, tics, learning disorders and developmental coordination disorder.
Henrik Anckarsater - One of the best experts on this subject based on the ideXlab platform.
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the autism tics ad hd and other comorbidities a tac Telephone Interview convergence with the child behavior checklist cbcl
Nordic Journal of Psychiatry, 2010Co-Authors: Sara Lina Hansson Hallerod, Tomas Larson, Ola Stahlberg, Eva Carlstrom, Carina Gillberg, Henrik Anckarsater, Maria Rastam, Paul Lichtenstein, Christopher GillbergAbstract:Objective: To compare Telephone Interview screening for child psychiatric/neuropsychiatric disorders using the inventory of Autism-Tics, Attention deficit/hyperactivity disorder (AD/HD) and other Comorbidities (A-TAC) with results from the Child Behavior Checklist (CBCL). Background: The A-TAC is a parent Telephone Interview focusing on autism spectrum disorders (ASDs) and co-existing problems, developed for lay Interviewers. Subjects and methods: A-TAC Telephone Interviews and CBCL questionnaires were obtained from parents of 106 Swedish twin pairs aged 9 and 12 years. Results: Correlations between A-TAC modules and CBCL scales aimed at measuring similar concepts were generally significant albeit modest, with correlation coefficients ranging from 0.30 through 0.55. Conclusion: The A-TAC has convergent validity with the CBCL in several problem areas, but the A-TAC also provides more detailed and specific assessments of ASD symptoms and related neuropsychiatric problems.
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The Autism - Tics, AD/HD and other Comorbidities inventory (A-TAC): further validation of a Telephone Interview for epidemiological research
BMC Psychiatry, 2010Co-Authors: Tomas Larson, Ola Stahlberg, Eva Carlstrom, Carina Gillberg, Henrik Anckarsater, Maria Rastam, Paul Lichtenstein, Björn Kadesjö, Christopher GillbergAbstract:Background Reliable, valid, and easy-to-administer instruments to identify possible caseness and to provide proxies for clinical diagnoses are needed in epidemiological research on child and adolescent mental health. The aim of this study is to provide further validity data for a parent Telephone Interview focused on Autism - Tics, Attention-deficit/hyperactivity disorder (AD/HD), and other Comorbidities (A-TAC), for which reliability and preliminary validation data have been previously reported. Methods Parents of 91 children clinically diagnosed at a specialized Child Neuropsychiatric Clinic, 366 control children and 319 children for whom clinical diagnoses had been previously assigned were Interviewed by the A-TAC over the phone. Interviewers were blind to clinical information. Different scores from the A-TAC were compared to the diagnostic outcome. Results Areas under ROC curves for Interview scores as predictors of clinical diagnoses were around 0.95 for most disorders, including autism spectrum disorders (ASDs), attention deficit/hyperactivity disorder (AD/HD), tic disorders, developmental coordination disorders (DCD) and learning disorders, indicating excellent screening properties. Screening cut-off scores with sensitivities above 0.90 (0.95 for ASD and AD/HD) were established for most conditions, as well as cut-off scores to identify proxies to clinical diagnoses with specificities above 0.90 (0.95 for ASD and AD/HD). Conclusions The previously reported validity of the A-TAC was supported by this larger replication study using broader scales from the A-TAC-items and a larger number of diagnostic categories. Short versions of algorithms worked as well as larger. Different cut-off levels for screening versus identifying proxies for clinical diagnoses are warranted. Data on the validity for mood problems and oppositional defiant/conduct problems are still lacking. Although the A-TAC is principally intended for epidemiological research and general investigations, the instrument may be useful as a tool to collect information in clinical practice as well.
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the autism tics ad hd and other comorbidities inventory a tac further validation of a Telephone Interview for epidemiological research
BMC Psychiatry, 2010Co-Authors: Tomas Larson, Ola Stahlberg, Eva Carlstrom, Carina Gillberg, Henrik Anckarsater, Maria Rastam, Paul Lichtenstein, Björn Kadesjö, Christopher GillbergAbstract:Reliable, valid, and easy-to-administer instruments to identify possible caseness and to provide proxies for clinical diagnoses are needed in epidemiological research on child and adolescent mental health. The aim of this study is to provide further validity data for a parent Telephone Interview focused on Autism - Tics, Attention-deficit/hyperactivity disorder (AD/HD), and other Comorbidities (A-TAC), for which reliability and preliminary validation data have been previously reported. Parents of 91 children clinically diagnosed at a specialized Child Neuropsychiatric Clinic, 366 control children and 319 children for whom clinical diagnoses had been previously assigned were Interviewed by the A-TAC over the phone. Interviewers were blind to clinical information. Different scores from the A-TAC were compared to the diagnostic outcome. Areas under ROC curves for Interview scores as predictors of clinical diagnoses were around 0.95 for most disorders, including autism spectrum disorders (ASDs), attention deficit/hyperactivity disorder (AD/HD), tic disorders, developmental coordination disorders (DCD) and learning disorders, indicating excellent screening properties. Screening cut-off scores with sensitivities above 0.90 (0.95 for ASD and AD/HD) were established for most conditions, as well as cut-off scores to identify proxies to clinical diagnoses with specificities above 0.90 (0.95 for ASD and AD/HD). The previously reported validity of the A-TAC was supported by this larger replication study using broader scales from the A-TAC-items and a larger number of diagnostic categories. Short versions of algorithms worked as well as larger. Different cut-off levels for screening versus identifying proxies for clinical diagnoses are warranted. Data on the validity for mood problems and oppositional defiant/conduct problems are still lacking. Although the A-TAC is principally intended for epidemiological research and general investigations, the instrument may be useful as a tool to collect information in clinical practice as well.
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psychiatric Telephone Interview with parents for screening of childhood autism tics attention deficit hyperactivity disorder and other comorbidities a tac preliminary reliability and validity
British Journal of Psychiatry, 2005Co-Authors: Sara Lina Hansson, Carina Gillberg, Maria Rastam, Christopher Gillberg, Annika Svanstrom Rojvall, Henrik AnckarsaterAbstract:Background Reliable, valid and easily administered screening instruments would greatly facilitate large-scale neuropsychiatric research. Aims To test a parent Telephone Interview focused on autism – tics, attention-deficit hyperactivity disorder (ADHD) and other comorbidities (A–TAC). Method Parents of 84 children in contact with a child neuropsychiatric clinic and 27 control children were Interviewed. Validity and interrater and test – retest reliability were assessed. Results Interrater and test – retest reliability were very good. Areas under receiver operating characteristics curves between Interview scores and clinical diagnoses were around 0.90 for ADHD and autistic spectrum disorders, and above 0.70 for tics, learning disorders and developmental coordination disorder. Using optimal cut-off scores for autistic spectrum disorder and ADHD, good to excellent kappa levels for Interviews and clinical diagnoses were noted. Conclusions The A–TAC appears to be a reliable and valid instrument for identifying autistic spectrum disorder, ADHD, tics, learning disorders and developmental coordination disorder.
Deborah Blacker - One of the best experts on this subject based on the ideXlab platform.
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development and validation of a structured Telephone Interview for dementia assessment stida the nimh genetics initiative
Journal of Geriatric Psychiatry and Neurology, 1997Co-Authors: Linda W. Duke, Janet L. Foster, Nancy A. Sharrow, Marshall F. Folstein, Lindy E. Harrell, Susan S Bassett, Heather Cody, Marilyn S Albert, Deborah BlackerAbstract:As part of the NIMH Genetics Initiative Alzheimer's Disease (AD) Study Group, a brief structured Telephone Interview to distinguish individuals with normal cognitive functioning from those with changes in cognition and daily functioning suggestive of early AD was developed. The Structured Telephone Interview for Dementia Assessment (STIDA), yields a dementia score between 0 and 81 (higher scores indicating greater impairment). Subscales corresponding to the subscales of the Clinical Dementia Rating Scale (CDR) can be derived. The STIDA performed well as a screening instrument for mildly demented individuals. When a score of 10 or more (based on informant Interview and subject testing) was used to identify mildly impaired individuals, the STIDA had a sensitivity of .93 and a specificity of .92 for a clinician-derived CDR of 0.5 or more. The STIDA was also capable of accurately assessing the level of dementia. STIDA-derived CDR ratings agreed with clinician-derived CDR scores in 23 of 28 cases, corresponding to an unweighted kappa of.71 and a weighted kappa of.81. A much-abbreviated short STIDA that could be administered directly to the subject was able to detect possible impairment with a sensitivity of .93 and a specificity of.77. These results suggest that the short STIDA provides a sensitive and fairly specific Telephone screen for dementia, and that the full STIDA, consisting of an Interview with a knowledgeable informant and subject testing, approximates the success of a face-to-face clinical Interview, and provides reliable and valid screening and staging of dementia over the Telephone.
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Development and validation of a Structured Telephone Interview for Dementia Assessment (STIDA): the NIMH Genetics Initiative.
Journal of Geriatric Psychiatry and Neurology, 1997Co-Authors: Rodney C.p. Go, Linda W. Duke, Heather A. Cody, Janet L. Foster, Nancy A. Sharrow, Marshall F. Folstein, Lindy E. Harrell, Marilyn Albert, Susan S Bassett, Deborah BlackerAbstract:As part of the NIMH Genetics Initiative Alzheimer's Disease (AD) Study Group, a brief structured Telephone Interview to distinguish individuals with normal cognitive functioning from those with changes in cognition and daily functioning suggestive of early AD was developed. The Structured Telephone Interview for Dementia Assessment (STIDA), yields a dementia score between 0 and 81 (higher scores indicating greater impairment). Subscales corresponding to the subscales of the Clinical Dementia Rating Scale (CDR) can be derived. The STIDA performed well as a screening instrument for mildly demented individuals. When a score of 10 or more (based on informant Interview and subject testing) was used to identify mildly impaired individuals, the STIDA had a sensitivity of .93 and a specificity of .92 for a clinician-derived CDR of 0.5 or more. The STIDA was also capable of accurately assessing the level of dementia. STIDA-derived CDR ratings agreed with clinician-derived CDR scores in 23 of 28 cases, correspondin...
Tomas Larson - One of the best experts on this subject based on the ideXlab platform.
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the autism tics ad hd and other comorbidities a tac Telephone Interview convergence with the child behavior checklist cbcl
Nordic Journal of Psychiatry, 2010Co-Authors: Sara Lina Hansson Hallerod, Tomas Larson, Ola Stahlberg, Eva Carlstrom, Carina Gillberg, Henrik Anckarsater, Maria Rastam, Paul Lichtenstein, Christopher GillbergAbstract:Objective: To compare Telephone Interview screening for child psychiatric/neuropsychiatric disorders using the inventory of Autism-Tics, Attention deficit/hyperactivity disorder (AD/HD) and other Comorbidities (A-TAC) with results from the Child Behavior Checklist (CBCL). Background: The A-TAC is a parent Telephone Interview focusing on autism spectrum disorders (ASDs) and co-existing problems, developed for lay Interviewers. Subjects and methods: A-TAC Telephone Interviews and CBCL questionnaires were obtained from parents of 106 Swedish twin pairs aged 9 and 12 years. Results: Correlations between A-TAC modules and CBCL scales aimed at measuring similar concepts were generally significant albeit modest, with correlation coefficients ranging from 0.30 through 0.55. Conclusion: The A-TAC has convergent validity with the CBCL in several problem areas, but the A-TAC also provides more detailed and specific assessments of ASD symptoms and related neuropsychiatric problems.
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The Autism - Tics, AD/HD and other Comorbidities inventory (A-TAC): further validation of a Telephone Interview for epidemiological research
BMC Psychiatry, 2010Co-Authors: Tomas Larson, Ola Stahlberg, Eva Carlstrom, Carina Gillberg, Henrik Anckarsater, Maria Rastam, Paul Lichtenstein, Björn Kadesjö, Christopher GillbergAbstract:Background Reliable, valid, and easy-to-administer instruments to identify possible caseness and to provide proxies for clinical diagnoses are needed in epidemiological research on child and adolescent mental health. The aim of this study is to provide further validity data for a parent Telephone Interview focused on Autism - Tics, Attention-deficit/hyperactivity disorder (AD/HD), and other Comorbidities (A-TAC), for which reliability and preliminary validation data have been previously reported. Methods Parents of 91 children clinically diagnosed at a specialized Child Neuropsychiatric Clinic, 366 control children and 319 children for whom clinical diagnoses had been previously assigned were Interviewed by the A-TAC over the phone. Interviewers were blind to clinical information. Different scores from the A-TAC were compared to the diagnostic outcome. Results Areas under ROC curves for Interview scores as predictors of clinical diagnoses were around 0.95 for most disorders, including autism spectrum disorders (ASDs), attention deficit/hyperactivity disorder (AD/HD), tic disorders, developmental coordination disorders (DCD) and learning disorders, indicating excellent screening properties. Screening cut-off scores with sensitivities above 0.90 (0.95 for ASD and AD/HD) were established for most conditions, as well as cut-off scores to identify proxies to clinical diagnoses with specificities above 0.90 (0.95 for ASD and AD/HD). Conclusions The previously reported validity of the A-TAC was supported by this larger replication study using broader scales from the A-TAC-items and a larger number of diagnostic categories. Short versions of algorithms worked as well as larger. Different cut-off levels for screening versus identifying proxies for clinical diagnoses are warranted. Data on the validity for mood problems and oppositional defiant/conduct problems are still lacking. Although the A-TAC is principally intended for epidemiological research and general investigations, the instrument may be useful as a tool to collect information in clinical practice as well.
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the autism tics ad hd and other comorbidities inventory a tac further validation of a Telephone Interview for epidemiological research
BMC Psychiatry, 2010Co-Authors: Tomas Larson, Ola Stahlberg, Eva Carlstrom, Carina Gillberg, Henrik Anckarsater, Maria Rastam, Paul Lichtenstein, Björn Kadesjö, Christopher GillbergAbstract:Reliable, valid, and easy-to-administer instruments to identify possible caseness and to provide proxies for clinical diagnoses are needed in epidemiological research on child and adolescent mental health. The aim of this study is to provide further validity data for a parent Telephone Interview focused on Autism - Tics, Attention-deficit/hyperactivity disorder (AD/HD), and other Comorbidities (A-TAC), for which reliability and preliminary validation data have been previously reported. Parents of 91 children clinically diagnosed at a specialized Child Neuropsychiatric Clinic, 366 control children and 319 children for whom clinical diagnoses had been previously assigned were Interviewed by the A-TAC over the phone. Interviewers were blind to clinical information. Different scores from the A-TAC were compared to the diagnostic outcome. Areas under ROC curves for Interview scores as predictors of clinical diagnoses were around 0.95 for most disorders, including autism spectrum disorders (ASDs), attention deficit/hyperactivity disorder (AD/HD), tic disorders, developmental coordination disorders (DCD) and learning disorders, indicating excellent screening properties. Screening cut-off scores with sensitivities above 0.90 (0.95 for ASD and AD/HD) were established for most conditions, as well as cut-off scores to identify proxies to clinical diagnoses with specificities above 0.90 (0.95 for ASD and AD/HD). The previously reported validity of the A-TAC was supported by this larger replication study using broader scales from the A-TAC-items and a larger number of diagnostic categories. Short versions of algorithms worked as well as larger. Different cut-off levels for screening versus identifying proxies for clinical diagnoses are warranted. Data on the validity for mood problems and oppositional defiant/conduct problems are still lacking. Although the A-TAC is principally intended for epidemiological research and general investigations, the instrument may be useful as a tool to collect information in clinical practice as well.
Maria Rastam - One of the best experts on this subject based on the ideXlab platform.
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the autism tics ad hd and other comorbidities a tac Telephone Interview convergence with the child behavior checklist cbcl
Nordic Journal of Psychiatry, 2010Co-Authors: Sara Lina Hansson Hallerod, Tomas Larson, Ola Stahlberg, Eva Carlstrom, Carina Gillberg, Henrik Anckarsater, Maria Rastam, Paul Lichtenstein, Christopher GillbergAbstract:Objective: To compare Telephone Interview screening for child psychiatric/neuropsychiatric disorders using the inventory of Autism-Tics, Attention deficit/hyperactivity disorder (AD/HD) and other Comorbidities (A-TAC) with results from the Child Behavior Checklist (CBCL). Background: The A-TAC is a parent Telephone Interview focusing on autism spectrum disorders (ASDs) and co-existing problems, developed for lay Interviewers. Subjects and methods: A-TAC Telephone Interviews and CBCL questionnaires were obtained from parents of 106 Swedish twin pairs aged 9 and 12 years. Results: Correlations between A-TAC modules and CBCL scales aimed at measuring similar concepts were generally significant albeit modest, with correlation coefficients ranging from 0.30 through 0.55. Conclusion: The A-TAC has convergent validity with the CBCL in several problem areas, but the A-TAC also provides more detailed and specific assessments of ASD symptoms and related neuropsychiatric problems.
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The Autism - Tics, AD/HD and other Comorbidities inventory (A-TAC): further validation of a Telephone Interview for epidemiological research
BMC Psychiatry, 2010Co-Authors: Tomas Larson, Ola Stahlberg, Eva Carlstrom, Carina Gillberg, Henrik Anckarsater, Maria Rastam, Paul Lichtenstein, Björn Kadesjö, Christopher GillbergAbstract:Background Reliable, valid, and easy-to-administer instruments to identify possible caseness and to provide proxies for clinical diagnoses are needed in epidemiological research on child and adolescent mental health. The aim of this study is to provide further validity data for a parent Telephone Interview focused on Autism - Tics, Attention-deficit/hyperactivity disorder (AD/HD), and other Comorbidities (A-TAC), for which reliability and preliminary validation data have been previously reported. Methods Parents of 91 children clinically diagnosed at a specialized Child Neuropsychiatric Clinic, 366 control children and 319 children for whom clinical diagnoses had been previously assigned were Interviewed by the A-TAC over the phone. Interviewers were blind to clinical information. Different scores from the A-TAC were compared to the diagnostic outcome. Results Areas under ROC curves for Interview scores as predictors of clinical diagnoses were around 0.95 for most disorders, including autism spectrum disorders (ASDs), attention deficit/hyperactivity disorder (AD/HD), tic disorders, developmental coordination disorders (DCD) and learning disorders, indicating excellent screening properties. Screening cut-off scores with sensitivities above 0.90 (0.95 for ASD and AD/HD) were established for most conditions, as well as cut-off scores to identify proxies to clinical diagnoses with specificities above 0.90 (0.95 for ASD and AD/HD). Conclusions The previously reported validity of the A-TAC was supported by this larger replication study using broader scales from the A-TAC-items and a larger number of diagnostic categories. Short versions of algorithms worked as well as larger. Different cut-off levels for screening versus identifying proxies for clinical diagnoses are warranted. Data on the validity for mood problems and oppositional defiant/conduct problems are still lacking. Although the A-TAC is principally intended for epidemiological research and general investigations, the instrument may be useful as a tool to collect information in clinical practice as well.
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the autism tics ad hd and other comorbidities inventory a tac further validation of a Telephone Interview for epidemiological research
BMC Psychiatry, 2010Co-Authors: Tomas Larson, Ola Stahlberg, Eva Carlstrom, Carina Gillberg, Henrik Anckarsater, Maria Rastam, Paul Lichtenstein, Björn Kadesjö, Christopher GillbergAbstract:Reliable, valid, and easy-to-administer instruments to identify possible caseness and to provide proxies for clinical diagnoses are needed in epidemiological research on child and adolescent mental health. The aim of this study is to provide further validity data for a parent Telephone Interview focused on Autism - Tics, Attention-deficit/hyperactivity disorder (AD/HD), and other Comorbidities (A-TAC), for which reliability and preliminary validation data have been previously reported. Parents of 91 children clinically diagnosed at a specialized Child Neuropsychiatric Clinic, 366 control children and 319 children for whom clinical diagnoses had been previously assigned were Interviewed by the A-TAC over the phone. Interviewers were blind to clinical information. Different scores from the A-TAC were compared to the diagnostic outcome. Areas under ROC curves for Interview scores as predictors of clinical diagnoses were around 0.95 for most disorders, including autism spectrum disorders (ASDs), attention deficit/hyperactivity disorder (AD/HD), tic disorders, developmental coordination disorders (DCD) and learning disorders, indicating excellent screening properties. Screening cut-off scores with sensitivities above 0.90 (0.95 for ASD and AD/HD) were established for most conditions, as well as cut-off scores to identify proxies to clinical diagnoses with specificities above 0.90 (0.95 for ASD and AD/HD). The previously reported validity of the A-TAC was supported by this larger replication study using broader scales from the A-TAC-items and a larger number of diagnostic categories. Short versions of algorithms worked as well as larger. Different cut-off levels for screening versus identifying proxies for clinical diagnoses are warranted. Data on the validity for mood problems and oppositional defiant/conduct problems are still lacking. Although the A-TAC is principally intended for epidemiological research and general investigations, the instrument may be useful as a tool to collect information in clinical practice as well.
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psychiatric Telephone Interview with parents for screening of childhood autism tics attention deficit hyperactivity disorder and other comorbidities a tac preliminary reliability and validity
British Journal of Psychiatry, 2005Co-Authors: Sara Lina Hansson, Carina Gillberg, Maria Rastam, Christopher Gillberg, Annika Svanstrom Rojvall, Henrik AnckarsaterAbstract:Background Reliable, valid and easily administered screening instruments would greatly facilitate large-scale neuropsychiatric research. Aims To test a parent Telephone Interview focused on autism – tics, attention-deficit hyperactivity disorder (ADHD) and other comorbidities (A–TAC). Method Parents of 84 children in contact with a child neuropsychiatric clinic and 27 control children were Interviewed. Validity and interrater and test – retest reliability were assessed. Results Interrater and test – retest reliability were very good. Areas under receiver operating characteristics curves between Interview scores and clinical diagnoses were around 0.90 for ADHD and autistic spectrum disorders, and above 0.70 for tics, learning disorders and developmental coordination disorder. Using optimal cut-off scores for autistic spectrum disorder and ADHD, good to excellent kappa levels for Interviews and clinical diagnoses were noted. Conclusions The A–TAC appears to be a reliable and valid instrument for identifying autistic spectrum disorder, ADHD, tics, learning disorders and developmental coordination disorder.
