Onset patterns in autism: Variation across informants, methods, and timing / Sally OZONOFF in Autism Research, 11-5 (May 2018)  

Public ISBD [article]  inAutism Research > 11-5 (May 2018) . - p.788-797 Titre : Onset patterns in autism: Variation across informants, methods, and timing Type de document : texte imprimé Auteurs : Sally OZONOFF, Auteur ; Devon N. GANGI, Auteur ; Elise P. HANZEL, Auteur ; Alesha HILL, Auteur ; Monique M. HILL, Auteur ; Meghan MILLER, Auteur ; A.J. SCHWICHTENBERG, Auteur ; Beth STEINFELD MARY, Auteur ; Chandni PARIKH, Auteur ; Ana-Maria IOSIF, Auteur Année de publication : 2018 Article en page(s) : p.788-797 Langues : Anglais (eng) Mots-clés : early signs  infants  regression Index. décimale : PER Périodiques Résumé : While previous studies suggested that regressive forms of onset were not common in autism spectrum disorder (ASD), more recent investigations suggest that the rates are quite high and may be under?reported using certain methods. The current study undertook a systematic investigation of how rates of regression differed by measurement method. Infants with (n=147) and without a family history of ASD (n=83) were seen prospectively for up to 7 visits in the first three years of life. Reports of symptom onset were collected using four measures that systematically varied the informant (examiner vs. parent), the decision type (categorical [regression absent or present] vs. dimensional [frequency of social behaviors]), and the timing of the assessment (retrospective vs. prospective). Latent class growth models were used to classify individual trajectories to see whether regressive onset patterns were infrequent or widespread within the ASD group. A majority of the sample was classified as having a regressive onset using either examiner (88%) or parent (69%) prospective dimensional ratings. Rates of regression were much lower using retrospective or categorical measures (from 29 to 47%). Agreement among different measurement methods was low. Declining trajectories of development, consistent with a regressive onset pattern, are common in children with ASD and may be more the rule than the exception. The accuracy of widely used methods of measuring onset is questionable and the present findings argue against their widespread use. Autism Res 2018, 11: 788 797. ? 2018 International Society for Autism Research, Wiley Periodicals, Inc. Lay Summary This study examines different ways of measuring the onset of symptoms in autism spectrum disorder (ASD). The present findings suggest that declining developmental skills, consistent with a regressive onset pattern, are common in children with ASD and may be more the rule than the exception. The results question the accuracy of widely used methods of measuring symptom onset and argue against their widespread use. En ligne : https://doi.org/10.1002/aur.1943 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=363 [article] Onset patterns in autism: Variation across informants, methods, and timing [texte imprimé] / Sally OZONOFF, Auteur ; Devon N. GANGI, Auteur ; Elise P. HANZEL, Auteur ; Alesha HILL, Auteur ; Monique M. HILL, Auteur ; Meghan MILLER, Auteur ; A.J. SCHWICHTENBERG, Auteur ; Beth STEINFELD MARY, Auteur ; Chandni PARIKH, Auteur ; Ana-Maria IOSIF, Auteur . - 2018 . - p.788-797. Langues : Anglais (eng) in Autism Research > 11-5 (May 2018) . - p.788-797 Mots-clés : early signs  infants  regression Index. décimale : PER Périodiques Résumé : While previous studies suggested that regressive forms of onset were not common in autism spectrum disorder (ASD), more recent investigations suggest that the rates are quite high and may be under?reported using certain methods. The current study undertook a systematic investigation of how rates of regression differed by measurement method. Infants with (n=147) and without a family history of ASD (n=83) were seen prospectively for up to 7 visits in the first three years of life. Reports of symptom onset were collected using four measures that systematically varied the informant (examiner vs. parent), the decision type (categorical [regression absent or present] vs. dimensional [frequency of social behaviors]), and the timing of the assessment (retrospective vs. prospective). Latent class growth models were used to classify individual trajectories to see whether regressive onset patterns were infrequent or widespread within the ASD group. A majority of the sample was classified as having a regressive onset using either examiner (88%) or parent (69%) prospective dimensional ratings. Rates of regression were much lower using retrospective or categorical measures (from 29 to 47%). Agreement among different measurement methods was low. Declining trajectories of development, consistent with a regressive onset pattern, are common in children with ASD and may be more the rule than the exception. The accuracy of widely used methods of measuring onset is questionable and the present findings argue against their widespread use. Autism Res 2018, 11: 788 797. ? 2018 International Society for Autism Research, Wiley Periodicals, Inc. Lay Summary This study examines different ways of measuring the onset of symptoms in autism spectrum disorder (ASD). The present findings suggest that declining developmental skills, consistent with a regressive onset pattern, are common in children with ASD and may be more the rule than the exception. The results question the accuracy of widely used methods of measuring symptom onset and argue against their widespread use. En ligne : https://doi.org/10.1002/aur.1943 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=363

A video-based measure to identify autism risk in infancy / Gregory S. YOUNG in Journal of Child Psychology and Psychiatry, 61-1 (January 2020)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 61-1 (January 2020) . - p.88-94 Titre : A video-based measure to identify autism risk in infancy Type de document : texte imprimé Auteurs : Gregory S. YOUNG, Auteur ; John N. CONSTANTINO, Auteur ; Simon DVORAK, Auteur ; Ashleigh BELDING, Auteur ; Devon N. GANGI, Auteur ; Alesha HILL, Auteur ; Monique HILL, Auteur ; Meghan MILLER, Auteur ; Chandni PARIKH, Auteur ; A.J. SCHWICHTENBERG, Auteur ; Erika SOLIS, Auteur ; Sally OZONOFF, Auteur Article en page(s) : p.88-94 Langues : Anglais (eng) Mots-clés : Autism  infancy  screening  social development Index. décimale : PER Périodiques Résumé : BACKGROUND: Signs of autism are present in the first 2 years of life, but the average age of diagnosis lags far behind. Instruments that improve detection of autism risk in infancy are needed. This study developed and tested the psychometric properties of a novel video-based approach to detecting ASD in infancy. METHODS: A prospective longitudinal study of children at elevated or lower risk for autism spectrum disorder was conducted. Participants were 76 infants with an older sibling with ASD and 37 infants with no known family history of autism. The Video-referenced Infant Rating System for Autism (VIRSA) is a web-based application that presents pairs of videos of parents and infants playing together and requires forced-choice judgments of which video is most similar to the child being rated. Parents rated participants on the VIRSA at 6, 9, 12, and 18 months of age. We examined split-half and test-retest reliability; convergent and discriminant validity; and sensitivity, specificity, and negative and positive predictive value for concurrent and 36-month ASD diagnoses. RESULTS: The VIRSA demonstrated satisfactory reliability and convergent and discriminant validity. VIRSA ratings were significantly lower for children ultimately diagnosed with ASD than children with typical development by 12 months of age. VIRSA scores at 18 months identified all children diagnosed with ASD at that age, as well as 78% of children diagnosed at 36 months. CONCLUSIONS: This study represents an initial step in the development of a novel video-based approach to detection of ASD in infancy. The VIRSA's psychometric properties were promising when used by parents with an older affected child, but still must be tested in community samples with no family history of ASD. If results are replicated, then the VIRSA's low-burden, web-based format has the potential to reduce disparities in communities with limited access to screening. En ligne : http://dx.doi.org/10.1111/jcpp.13105 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=413 [article] A video-based measure to identify autism risk in infancy [texte imprimé] / Gregory S. YOUNG, Auteur ; John N. CONSTANTINO, Auteur ; Simon DVORAK, Auteur ; Ashleigh BELDING, Auteur ; Devon N. GANGI, Auteur ; Alesha HILL, Auteur ; Monique HILL, Auteur ; Meghan MILLER, Auteur ; Chandni PARIKH, Auteur ; A.J. SCHWICHTENBERG, Auteur ; Erika SOLIS, Auteur ; Sally OZONOFF, Auteur . - p.88-94. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 61-1 (January 2020) . - p.88-94 Mots-clés : Autism  infancy  screening  social development Index. décimale : PER Périodiques Résumé : BACKGROUND: Signs of autism are present in the first 2 years of life, but the average age of diagnosis lags far behind. Instruments that improve detection of autism risk in infancy are needed. This study developed and tested the psychometric properties of a novel video-based approach to detecting ASD in infancy. METHODS: A prospective longitudinal study of children at elevated or lower risk for autism spectrum disorder was conducted. Participants were 76 infants with an older sibling with ASD and 37 infants with no known family history of autism. The Video-referenced Infant Rating System for Autism (VIRSA) is a web-based application that presents pairs of videos of parents and infants playing together and requires forced-choice judgments of which video is most similar to the child being rated. Parents rated participants on the VIRSA at 6, 9, 12, and 18 months of age. We examined split-half and test-retest reliability; convergent and discriminant validity; and sensitivity, specificity, and negative and positive predictive value for concurrent and 36-month ASD diagnoses. RESULTS: The VIRSA demonstrated satisfactory reliability and convergent and discriminant validity. VIRSA ratings were significantly lower for children ultimately diagnosed with ASD than children with typical development by 12 months of age. VIRSA scores at 18 months identified all children diagnosed with ASD at that age, as well as 78% of children diagnosed at 36 months. CONCLUSIONS: This study represents an initial step in the development of a novel video-based approach to detection of ASD in infancy. The VIRSA's psychometric properties were promising when used by parents with an older affected child, but still must be tested in community samples with no family history of ASD. If results are replicated, then the VIRSA's low-burden, web-based format has the potential to reduce disparities in communities with limited access to screening. En ligne : http://dx.doi.org/10.1111/jcpp.13105 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=413

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