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Auteur Rebecca LANDA |
Documents disponibles écrits par cet auteur (29)
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Prevalence of gastrointestinal symptoms among autistic individuals, with and without co-occurring intellectual disability / Calliope HOLINGUE in Autism Research, 16-8 (August 2023)
[article]
Titre : Prevalence of gastrointestinal symptoms among autistic individuals, with and without co-occurring intellectual disability Type de document : Texte imprimé et/ou numérique Auteurs : Calliope HOLINGUE, Auteur ; Danika PFEIFFER, Auteur ; Natasha N. LUDWIG, Auteur ; Rachel REETZKE, Auteur ; Ji Su HONG, Auteur ; Luther G. KALB, Auteur ; Rebecca LANDA, Auteur Article en page(s) : p.1609-1618 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Abstract Gastrointestinal symptoms (GI) are very common among individuals on the autism spectrum. Prior research reports mixed findings regarding whether individuals with autism and co-occurring intellectual disability (ID) have elevated risk of gastrointestinal symptoms relative to individuals with autism alone. GI symptoms can be challenging to assess in individuals with autism spectrum disorder (ASD) and/or ID given challenges with language, communication, and interoception. Prior research has tended to only include individuals with documented presence or absence of GI symptoms or conditions, that is, to exclude observations in which there is uncertainty regarding presence of GI symptoms. Therefore, none of the prior autism studies reported the association between ID and the certainty regarding presence or absence of GI symptoms. The objective of this study was to examine differences in parental certainty and odds of reporting gastrointestinal signs and symptoms among children on the autism spectrum, with and without intellectual disability. Participants were 308 children (36% ID) with a clinical diagnosis of autism spectrum disorder (6-17?years). Parents endorsed whether their child had experienced or displayed a range of signs or symptoms related to GI problems in the past 3 months. Parents of autistic children with ID were less certain about the presence of more subjective symptoms, including abdominal pain, nausea, and bloating. Conversely, certainty regarding more objective signs (e.g., constipation, diarrhea, spitting up, etc.) was not significantly different. More accurate measures for GI signs/symptoms are needed for this population. En ligne : https://doi.org/10.1002/aur.2972 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=510
in Autism Research > 16-8 (August 2023) . - p.1609-1618[article] Prevalence of gastrointestinal symptoms among autistic individuals, with and without co-occurring intellectual disability [Texte imprimé et/ou numérique] / Calliope HOLINGUE, Auteur ; Danika PFEIFFER, Auteur ; Natasha N. LUDWIG, Auteur ; Rachel REETZKE, Auteur ; Ji Su HONG, Auteur ; Luther G. KALB, Auteur ; Rebecca LANDA, Auteur . - p.1609-1618.
Langues : Anglais (eng)
in Autism Research > 16-8 (August 2023) . - p.1609-1618
Index. décimale : PER Périodiques Résumé : Abstract Gastrointestinal symptoms (GI) are very common among individuals on the autism spectrum. Prior research reports mixed findings regarding whether individuals with autism and co-occurring intellectual disability (ID) have elevated risk of gastrointestinal symptoms relative to individuals with autism alone. GI symptoms can be challenging to assess in individuals with autism spectrum disorder (ASD) and/or ID given challenges with language, communication, and interoception. Prior research has tended to only include individuals with documented presence or absence of GI symptoms or conditions, that is, to exclude observations in which there is uncertainty regarding presence of GI symptoms. Therefore, none of the prior autism studies reported the association between ID and the certainty regarding presence or absence of GI symptoms. The objective of this study was to examine differences in parental certainty and odds of reporting gastrointestinal signs and symptoms among children on the autism spectrum, with and without intellectual disability. Participants were 308 children (36% ID) with a clinical diagnosis of autism spectrum disorder (6-17?years). Parents endorsed whether their child had experienced or displayed a range of signs or symptoms related to GI problems in the past 3 months. Parents of autistic children with ID were less certain about the presence of more subjective symptoms, including abdominal pain, nausea, and bloating. Conversely, certainty regarding more objective signs (e.g., constipation, diarrhea, spitting up, etc.) was not significantly different. More accurate measures for GI signs/symptoms are needed for this population. En ligne : https://doi.org/10.1002/aur.2972 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=510 Psychometric Evaluation of the Autism Spectrum Rating Scales (6-18 Years Parent Report) in a Clinical Sample / Ji Su HONG in Journal of Autism and Developmental Disorders, 54-3 (March 2024)
[article]
Titre : Psychometric Evaluation of the Autism Spectrum Rating Scales (6-18 Years Parent Report) in a Clinical Sample Type de document : Texte imprimé et/ou numérique Auteurs : Ji Su HONG, Auteur ; Jeremy PERRIN, Auteur ; Vini SINGH, Auteur ; Luke KALB, Auteur ; Elizabeth A. CROSS, Auteur ; Ericka WODKA, Auteur ; Chana RICHTER, Auteur ; Rebecca LANDA, Auteur Article en page(s) : p.1024-1035 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : ASD is a neurodevelopmental disorder impacting 1 in 44 children and early identification of children with ASD is critical for the intervention. Several screening measures have been developed for early identification, including the Autism Spectrum Rating Scales, 6-18 years Parent Report (ASRS). The ASRS has been understudied, and the current study assessed the validity of the ASRS in a clinical sample of 490 children at a tertiary ASD-specialty clinic. Results indicated that the ASRS demonstrated favorable sensitivity, but poor specificity. True positive screening results were more likely to occur for children with a multiracial background, while they were less likely to occur for children with a high social capital. Overall, though the ASRS has clinical utility as a screening measure, it did not perform effectively to differentiate ASD from Non-ASD clinical disorders. En ligne : https://doi.org/10.1007/s10803-022-05871-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=524
in Journal of Autism and Developmental Disorders > 54-3 (March 2024) . - p.1024-1035[article] Psychometric Evaluation of the Autism Spectrum Rating Scales (6-18 Years Parent Report) in a Clinical Sample [Texte imprimé et/ou numérique] / Ji Su HONG, Auteur ; Jeremy PERRIN, Auteur ; Vini SINGH, Auteur ; Luke KALB, Auteur ; Elizabeth A. CROSS, Auteur ; Ericka WODKA, Auteur ; Chana RICHTER, Auteur ; Rebecca LANDA, Auteur . - p.1024-1035.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 54-3 (March 2024) . - p.1024-1035
Index. décimale : PER Périodiques Résumé : ASD is a neurodevelopmental disorder impacting 1 in 44 children and early identification of children with ASD is critical for the intervention. Several screening measures have been developed for early identification, including the Autism Spectrum Rating Scales, 6-18 years Parent Report (ASRS). The ASRS has been understudied, and the current study assessed the validity of the ASRS in a clinical sample of 490 children at a tertiary ASD-specialty clinic. Results indicated that the ASRS demonstrated favorable sensitivity, but poor specificity. True positive screening results were more likely to occur for children with a multiracial background, while they were less likely to occur for children with a high social capital. Overall, though the ASRS has clinical utility as a screening measure, it did not perform effectively to differentiate ASD from Non-ASD clinical disorders. En ligne : https://doi.org/10.1007/s10803-022-05871-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=524 Quality of Life in School-Aged Youth Referred to an Autism Specialty Clinic: A Latent Profile Analysis / Gazi F. AZAD in Journal of Autism and Developmental Disorders, 50-4 (April 2020)
[article]
Titre : Quality of Life in School-Aged Youth Referred to an Autism Specialty Clinic: A Latent Profile Analysis Type de document : Texte imprimé et/ou numérique Auteurs : Gazi F. AZAD, Auteur ; Emily DILLON, Auteur ; Julie FEUERSTEIN, Auteur ; Luke G. KALB, Auteur ; Jason NEELY, Auteur ; Rebecca LANDA, Auteur Article en page(s) : p.1269-1280 Langues : Anglais (eng) Mots-clés : Autism Autism spectrum disorder Clinical services Quality of life Index. décimale : PER Périodiques Résumé : We examined whether different profiles of quality of life (QoL) existed among youth referred to an autism spectrum disorder (ASD) specialty clinic and, if present, determined if these groups were associated with different characteristics. Data were from parental report of 5-17 year-old youth (N = 476) who were scheduled to receive an evaluation at an ASD clinic. Parents completed questionnaires, including the Pediatric Quality of Life Inventory, assessing child and family functioning; providers reported diagnostic impressions. A latent profile analysis found five distinct groups: Low Risk, School Problems, Only Social Emotional Problems, and two Physical/Social Emotional Problems. The groups differed on clinical characteristics and family functioning. These findings have implications for more efficient and effective evaluations in service delivery systems serving complex patients. En ligne : http://dx.doi.org/10.1007/s10803-019-04353-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=421
in Journal of Autism and Developmental Disorders > 50-4 (April 2020) . - p.1269-1280[article] Quality of Life in School-Aged Youth Referred to an Autism Specialty Clinic: A Latent Profile Analysis [Texte imprimé et/ou numérique] / Gazi F. AZAD, Auteur ; Emily DILLON, Auteur ; Julie FEUERSTEIN, Auteur ; Luke G. KALB, Auteur ; Jason NEELY, Auteur ; Rebecca LANDA, Auteur . - p.1269-1280.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 50-4 (April 2020) . - p.1269-1280
Mots-clés : Autism Autism spectrum disorder Clinical services Quality of life Index. décimale : PER Périodiques Résumé : We examined whether different profiles of quality of life (QoL) existed among youth referred to an autism spectrum disorder (ASD) specialty clinic and, if present, determined if these groups were associated with different characteristics. Data were from parental report of 5-17 year-old youth (N = 476) who were scheduled to receive an evaluation at an ASD clinic. Parents completed questionnaires, including the Pediatric Quality of Life Inventory, assessing child and family functioning; providers reported diagnostic impressions. A latent profile analysis found five distinct groups: Low Risk, School Problems, Only Social Emotional Problems, and two Physical/Social Emotional Problems. The groups differed on clinical characteristics and family functioning. These findings have implications for more efficient and effective evaluations in service delivery systems serving complex patients. En ligne : http://dx.doi.org/10.1007/s10803-019-04353-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=421 Replication study for ADOS-2 cut-offs to assist evaluation of autism spectrum disorder / Ji Su HONG in Autism Research, 15-11 (November 2022)
[article]
Titre : Replication study for ADOS-2 cut-offs to assist evaluation of autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Ji Su HONG, Auteur ; Vini SINGH, Auteur ; Luke G. KALB, Auteur ; Rachel REETZKE, Auteur ; Natasha N. LUDWIG, Auteur ; Danika PFEIFFER, Auteur ; Calliope HOLINGUE, Auteur ; Deepa MENON, Auteur ; Qing LU, Auteur ; Ahlam ASHKAR, Auteur ; Rebecca LANDA, Auteur Article en page(s) : p.2181-2191 Langues : Anglais (eng) Mots-clés : Child Humans Male Female Autism Spectrum Disorder/diagnosis Sensitivity and Specificity Predictive Value of Tests Algorithms Autistic Disorder autism spectrum disorder classification cut-off score diagnosis Index. décimale : PER Périodiques Résumé : The Autism Diagnostic Observation Schedule, Second Edition (ADOS-2) has been widely used for ASD assessment. While prior studies investigated sensitivity and specificity of ADOS-2 Modules 1-3, there has been limited research addressing algorithm cut-off scores to optimize ADOS-2 classification. The goal of this study was to assess algorithm cut-off scores for diagnosing ASD with Modules 1-3, and to evaluate alignment of the ADOS-2 classification with the best estimate clinical diagnosis. Participants included 3144 children aged 31 months or older who received ADOS-2 Modules 1-3, as well as the best estimate clinical diagnosis. Five classification statistics were reported for each module: sensitivity, specificity, positive predictive value, negative predictive value, and accuracy (i.e., Receiver Operator Classification Statistic), and these statistics were calculated for the optimal cut-off score. Frequency tables were used to compare ADOS-2 classification and the best estimate clinical diagnosis. Half of the sample received Module 3, 21% received Module 2, and 29% received Module 1. The overall prevalence of ASD was 60%; the male-to-female ratio was 4:1, and half of the sample was non-White. Across all modules, the autism spectrum cut-off score from the ADOS-2 manual resulted in high sensitivity (95%+) and low specificity (63%-73%). The autism cut-off score resulted in better specificity (76%-86%) with favorable sensitivity (81%-94%). The optimal cut-off scores for all modules based on the current sample were within the autism spectrum classification range except Module 2 Algorithm 2. In the No ASD group, 29% had false positives (ADOS-2 autism spectrum classification or autism classification). The ADOS-2 autism spectrum classification did not indicate directionality for diagnostic outcome (ASD 56% vs. No ASD 44%). While cut-off scores of ADOS-2 Modules 1-3 in the manual yielded good clinical utility in ASD assessment, false positives and low predictability of the autism spectrum classification remain challenging for clinicians. En ligne : http://dx.doi.org/10.1002/aur.2801 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=488
in Autism Research > 15-11 (November 2022) . - p.2181-2191[article] Replication study for ADOS-2 cut-offs to assist evaluation of autism spectrum disorder [Texte imprimé et/ou numérique] / Ji Su HONG, Auteur ; Vini SINGH, Auteur ; Luke G. KALB, Auteur ; Rachel REETZKE, Auteur ; Natasha N. LUDWIG, Auteur ; Danika PFEIFFER, Auteur ; Calliope HOLINGUE, Auteur ; Deepa MENON, Auteur ; Qing LU, Auteur ; Ahlam ASHKAR, Auteur ; Rebecca LANDA, Auteur . - p.2181-2191.
Langues : Anglais (eng)
in Autism Research > 15-11 (November 2022) . - p.2181-2191
Mots-clés : Child Humans Male Female Autism Spectrum Disorder/diagnosis Sensitivity and Specificity Predictive Value of Tests Algorithms Autistic Disorder autism spectrum disorder classification cut-off score diagnosis Index. décimale : PER Périodiques Résumé : The Autism Diagnostic Observation Schedule, Second Edition (ADOS-2) has been widely used for ASD assessment. While prior studies investigated sensitivity and specificity of ADOS-2 Modules 1-3, there has been limited research addressing algorithm cut-off scores to optimize ADOS-2 classification. The goal of this study was to assess algorithm cut-off scores for diagnosing ASD with Modules 1-3, and to evaluate alignment of the ADOS-2 classification with the best estimate clinical diagnosis. Participants included 3144 children aged 31 months or older who received ADOS-2 Modules 1-3, as well as the best estimate clinical diagnosis. Five classification statistics were reported for each module: sensitivity, specificity, positive predictive value, negative predictive value, and accuracy (i.e., Receiver Operator Classification Statistic), and these statistics were calculated for the optimal cut-off score. Frequency tables were used to compare ADOS-2 classification and the best estimate clinical diagnosis. Half of the sample received Module 3, 21% received Module 2, and 29% received Module 1. The overall prevalence of ASD was 60%; the male-to-female ratio was 4:1, and half of the sample was non-White. Across all modules, the autism spectrum cut-off score from the ADOS-2 manual resulted in high sensitivity (95%+) and low specificity (63%-73%). The autism cut-off score resulted in better specificity (76%-86%) with favorable sensitivity (81%-94%). The optimal cut-off scores for all modules based on the current sample were within the autism spectrum classification range except Module 2 Algorithm 2. In the No ASD group, 29% had false positives (ADOS-2 autism spectrum classification or autism classification). The ADOS-2 autism spectrum classification did not indicate directionality for diagnostic outcome (ASD 56% vs. No ASD 44%). While cut-off scores of ADOS-2 Modules 1-3 in the manual yielded good clinical utility in ASD assessment, false positives and low predictability of the autism spectrum classification remain challenging for clinicians. En ligne : http://dx.doi.org/10.1002/aur.2801 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=488 Response to Joint Attention in Toddlers at Risk for Autism Spectrum Disorder: A Prospective Study / Michelle SULLIVAN in Journal of Autism and Developmental Disorders, 37-1 (January 2007)
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Titre : Response to Joint Attention in Toddlers at Risk for Autism Spectrum Disorder: A Prospective Study Type de document : Texte imprimé et/ou numérique Auteurs : Michelle SULLIVAN, Auteur ; Rebecca LANDA, Auteur ; Julianna FINELLI, Auteur ; Alison MARVIN, Auteur ; Elizabeth GARRETT-MAYER, Auteur ; Margaret L. BAUMAN, Auteur Année de publication : 2007 Article en page(s) : p.37-48 Langues : Anglais (eng) Mots-clés : Autism Joint-attention Longitudinal Phenotype Siblings Social-Communication Index. décimale : PER Périodiques Résumé : Response to joint attention (RJA) is impaired in preschoolers with autism spectrum disorder (ASD) and is pivotal to social and communication development. Response to joint attention was examined at 14 and 24 months in 51 children at high risk for autism (siblings of children with autism). Outcome groups at age 3 years included ASD (n = 16), broader autism phenotype (n = 8), and non-broader autism phenotype (n = 27). The ASD group made minimal improvement in RJA between 14 and 24 months, but stability of RJA across tasks increased for all three groups. Significantly, lower RJA was observed for the ASD group at 24 months. Response to joint attention performance at 14 months predicted ASD outcome. Response to joint attention is an important screening and early intervention target. En ligne : http://dx.doi.org/10.1007/s10803-006-0335-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=612
in Journal of Autism and Developmental Disorders > 37-1 (January 2007) . - p.37-48[article] Response to Joint Attention in Toddlers at Risk for Autism Spectrum Disorder: A Prospective Study [Texte imprimé et/ou numérique] / Michelle SULLIVAN, Auteur ; Rebecca LANDA, Auteur ; Julianna FINELLI, Auteur ; Alison MARVIN, Auteur ; Elizabeth GARRETT-MAYER, Auteur ; Margaret L. BAUMAN, Auteur . - 2007 . - p.37-48.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 37-1 (January 2007) . - p.37-48
Mots-clés : Autism Joint-attention Longitudinal Phenotype Siblings Social-Communication Index. décimale : PER Périodiques Résumé : Response to joint attention (RJA) is impaired in preschoolers with autism spectrum disorder (ASD) and is pivotal to social and communication development. Response to joint attention was examined at 14 and 24 months in 51 children at high risk for autism (siblings of children with autism). Outcome groups at age 3 years included ASD (n = 16), broader autism phenotype (n = 8), and non-broader autism phenotype (n = 27). The ASD group made minimal improvement in RJA between 14 and 24 months, but stability of RJA across tasks increased for all three groups. Significantly, lower RJA was observed for the ASD group at 24 months. Response to joint attention performance at 14 months predicted ASD outcome. Response to joint attention is an important screening and early intervention target. En ligne : http://dx.doi.org/10.1007/s10803-006-0335-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=612 Signes d'autisme et de retards de la communication chez les nourrissons et tout-petits, implications pour l'intervention précoce / Rebecca LANDA in Bulletin Scientifique de l'arapi (Le), 34 (Décembre 2014)
PermalinkSocial and non-social visual attention patterns and associative learning in infants at risk for autism / Anjana N. BHAT in Journal of Child Psychology and Psychiatry, 51-9 (September 2010)
PermalinkSpoken language outcomes in limited language preschoolers with autism and global developmental delay: RCT of early intervention approaches / Connie KASARI in Autism Research, 16-6 (June 2023)
PermalinkStudying the Emergence of Autism Spectrum Disorders in High-risk Infants: Methodological and Practical Issues / Lonnie ZWAIGENBAUM in Journal of Autism and Developmental Disorders, 37-3 (March 2007)
PermalinkThe Association Between Parental Age and Autism-Related Outcomes in Children at High Familial Risk for Autism / Kristen LYALL in Autism Research, 13-6 (June 2020)
PermalinkThe peer relationships of girls with ASD at school: comparison to boys and girls with and without ASD / Michelle DEAN in Journal of Child Psychology and Psychiatry, 55-11 (November 2014)
PermalinkThe Study to Explore Early Development (SEED): A Multisite Epidemiologic Study of Autism by the Centers for Autism and Developmental Disabilities Research and Epidemiology (CADDRE) Network / Diana SCHENDEL in Journal of Autism and Developmental Disorders, 42-10 (October 2012)
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