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Age-Specific Time Trends in Incidence Rates of Autism Spectrum Disorder Following Adaptation of DSM-5 and Other ASD-Related Regulatory Changes in Israel / Michael DAVIDOVITCH in Autism Research, 13-11 (November 2020)
[article]
Titre : Age-Specific Time Trends in Incidence Rates of Autism Spectrum Disorder Following Adaptation of DSM-5 and Other ASD-Related Regulatory Changes in Israel Type de document : Texte imprimé et/ou numérique Auteurs : Michael DAVIDOVITCH, Auteur ; Ortal SLOBODIN, Auteur ; Marc G. WEISSKOPF, Auteur ; Ran S. ROTEM, Auteur Article en page(s) : p.1893-1901 Langues : Anglais (eng) Mots-clés : Dsm age trends autism spectrum disorder incidence late diagnosis Index. décimale : PER Périodiques Résumé : We analyzed data on 879,029 children born in 1999-2017 from a large Israeli health fund to evaluate time-trends in incidence of autism spectrum disorder (ASD). This included examining possible effects associated with the adaptation of the DSM-5 criteria for ASD, and the implementation of regulatory changes affecting eligibility for ASD-related stipends and services. ASD cases were ascertained based on electronic medical records review, with complete verification of ASD case status. Results indicated a substantial increase in ASD incidence rate (IR) over time that was overall not appreciably affected by the above changes. Cumulative incidence through age 8 rose from 0.46% (boys: 0.73; girls: 0.18) in 2007 to 1.30% (boys: 2.12; girls: 0.45) in 2018. Age-specific analyzes indicated that the largest increase in IR occurred in toddlers and preschool children, with a more modest increase at older age groups. Results suggest that the rise in early diagnosed ASD does not stem from a downward shift in the distribution of ages at first diagnosis, but rather from early detection of cases not previously diagnosed. Findings highlight the need to expand research aimed at identifying exogenous factors that may underlie the rise in incidence, and to evaluate factors that may contribute to late diagnosis of some cases. Autism Res 2020, 13: 1893-1901. © 2020 International Society for Autism Research and Wiley Periodicals LLC LAY SUMMARY: In an analysis of nearly 900,000 Israeli children born in 1999-2017, we found that the incidence of autism spectrum disorder (ASD) increased significantly over time, especially among toddlers and preschool children but also at older age groups. We additionally observed that changes affecting diagnostic criteria for ASD and eligibility for ASD-related services did not appreciably affect these trends. Results highlight the need to continue research aimed at identifying factors causing this increase and reasons contributing to late diagnosis of some cases. En ligne : http://dx.doi.org/10.1002/aur.2420 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=433
in Autism Research > 13-11 (November 2020) . - p.1893-1901[article] Age-Specific Time Trends in Incidence Rates of Autism Spectrum Disorder Following Adaptation of DSM-5 and Other ASD-Related Regulatory Changes in Israel [Texte imprimé et/ou numérique] / Michael DAVIDOVITCH, Auteur ; Ortal SLOBODIN, Auteur ; Marc G. WEISSKOPF, Auteur ; Ran S. ROTEM, Auteur . - p.1893-1901.
Langues : Anglais (eng)
in Autism Research > 13-11 (November 2020) . - p.1893-1901
Mots-clés : Dsm age trends autism spectrum disorder incidence late diagnosis Index. décimale : PER Périodiques Résumé : We analyzed data on 879,029 children born in 1999-2017 from a large Israeli health fund to evaluate time-trends in incidence of autism spectrum disorder (ASD). This included examining possible effects associated with the adaptation of the DSM-5 criteria for ASD, and the implementation of regulatory changes affecting eligibility for ASD-related stipends and services. ASD cases were ascertained based on electronic medical records review, with complete verification of ASD case status. Results indicated a substantial increase in ASD incidence rate (IR) over time that was overall not appreciably affected by the above changes. Cumulative incidence through age 8 rose from 0.46% (boys: 0.73; girls: 0.18) in 2007 to 1.30% (boys: 2.12; girls: 0.45) in 2018. Age-specific analyzes indicated that the largest increase in IR occurred in toddlers and preschool children, with a more modest increase at older age groups. Results suggest that the rise in early diagnosed ASD does not stem from a downward shift in the distribution of ages at first diagnosis, but rather from early detection of cases not previously diagnosed. Findings highlight the need to expand research aimed at identifying exogenous factors that may underlie the rise in incidence, and to evaluate factors that may contribute to late diagnosis of some cases. Autism Res 2020, 13: 1893-1901. © 2020 International Society for Autism Research and Wiley Periodicals LLC LAY SUMMARY: In an analysis of nearly 900,000 Israeli children born in 1999-2017, we found that the incidence of autism spectrum disorder (ASD) increased significantly over time, especially among toddlers and preschool children but also at older age groups. We additionally observed that changes affecting diagnostic criteria for ASD and eligibility for ASD-related services did not appreciably affect these trends. Results highlight the need to continue research aimed at identifying factors causing this increase and reasons contributing to late diagnosis of some cases. En ligne : http://dx.doi.org/10.1002/aur.2420 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=433 Childhood diagnoses in individuals identified as autistics in adulthood / E. M. RØDGAARD in Molecular Autism, 12 (2021)
[article]
Titre : Childhood diagnoses in individuals identified as autistics in adulthood Type de document : Texte imprimé et/ou numérique Auteurs : E. M. RØDGAARD, Auteur ; K. JENSEN, Auteur ; K. W. MISKOWIAK, Auteur ; L. MOTTRON, Auteur Article en page(s) : 73 p. Langues : Anglais (eng) Mots-clés : Adult Autism Comorbidity Late diagnosis A/S in the past three years. EMR, KJ, and LM declare no competing interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Autism is a developmental condition, where symptoms are expected to occur in childhood, but a significant number of individuals are diagnosed with autism for the first time in adulthood. Here, we examine diagnoses given in childhood among individuals that are diagnosed with autism in adulthood, to investigate whether the late autism diagnosis might be explained by misdiagnosis in childhood or diagnostic overshadowing. METHODS: Through the Danish National Patient Registry, we identified individuals diagnosed with autism in adulthood (N?=?2199), as well as a control sample with no records of an autism diagnosis (N?=?460,798) and calculated how many had received different psychiatric or neurological diagnoses in childhood. RESULTS: We found that most childhood diagnoses were overrepresented in those with an adult autism diagnosis, and attention-deficit hyperactivity disorder, affective disorders, anxiety, and stress disorders were the most prevalent childhood conditions in this group. However, 69% of males and 61% of females with adult autism diagnoses were not found to have received any of the investigated diagnoses before 18 years of age, and most childhood diagnoses were given after the age of 12. LIMITATIONS: Milder to moderate cases of psychiatric conditions that have been solely treated by family physicians or school psychologists may not be fully included in our dataset. The study is based on data from the Danish health care system, and further research is needed to assess whether the findings can be generalized to other countries. CONCLUSION: A majority of those with an adult autism diagnosis had no records of having received any of the investigated diagnoses in childhood. In these cases, the late autism diagnosis is therefore unlikely to be explained by either misdiagnosis or overshadowing. This result is at odds with the prevailing notion that autistic symptoms tend to diminish with age. Therefore, further research is warranted to examine how and if early signs of autism may have manifested among these individuals, and how similar they are to autistic people diagnosed earlier in their development. En ligne : http://dx.doi.org/10.1186/s13229-021-00478-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=459
in Molecular Autism > 12 (2021) . - 73 p.[article] Childhood diagnoses in individuals identified as autistics in adulthood [Texte imprimé et/ou numérique] / E. M. RØDGAARD, Auteur ; K. JENSEN, Auteur ; K. W. MISKOWIAK, Auteur ; L. MOTTRON, Auteur . - 73 p.
Langues : Anglais (eng)
in Molecular Autism > 12 (2021) . - 73 p.
Mots-clés : Adult Autism Comorbidity Late diagnosis A/S in the past three years. EMR, KJ, and LM declare no competing interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Autism is a developmental condition, where symptoms are expected to occur in childhood, but a significant number of individuals are diagnosed with autism for the first time in adulthood. Here, we examine diagnoses given in childhood among individuals that are diagnosed with autism in adulthood, to investigate whether the late autism diagnosis might be explained by misdiagnosis in childhood or diagnostic overshadowing. METHODS: Through the Danish National Patient Registry, we identified individuals diagnosed with autism in adulthood (N?=?2199), as well as a control sample with no records of an autism diagnosis (N?=?460,798) and calculated how many had received different psychiatric or neurological diagnoses in childhood. RESULTS: We found that most childhood diagnoses were overrepresented in those with an adult autism diagnosis, and attention-deficit hyperactivity disorder, affective disorders, anxiety, and stress disorders were the most prevalent childhood conditions in this group. However, 69% of males and 61% of females with adult autism diagnoses were not found to have received any of the investigated diagnoses before 18 years of age, and most childhood diagnoses were given after the age of 12. LIMITATIONS: Milder to moderate cases of psychiatric conditions that have been solely treated by family physicians or school psychologists may not be fully included in our dataset. The study is based on data from the Danish health care system, and further research is needed to assess whether the findings can be generalized to other countries. CONCLUSION: A majority of those with an adult autism diagnosis had no records of having received any of the investigated diagnoses in childhood. In these cases, the late autism diagnosis is therefore unlikely to be explained by either misdiagnosis or overshadowing. This result is at odds with the prevailing notion that autistic symptoms tend to diminish with age. Therefore, further research is warranted to examine how and if early signs of autism may have manifested among these individuals, and how similar they are to autistic people diagnosed earlier in their development. En ligne : http://dx.doi.org/10.1186/s13229-021-00478-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=459 Parent-reported early symptoms of autism spectrum disorder in children without intellectual disability who were diagnosed at school age / A. GOODWIN in Autism, 23-3 (April 2019)
[article]
Titre : Parent-reported early symptoms of autism spectrum disorder in children without intellectual disability who were diagnosed at school age Type de document : Texte imprimé et/ou numérique Auteurs : A. GOODWIN, Auteur ; N. L. MATTHEWS, Auteur ; C. J. SMITH, Auteur Article en page(s) : p.770-782 Langues : Anglais (eng) Mots-clés : Autism Diagnostic Interview-Revised age of diagnosis early screening late diagnosis negative symptoms positive symptoms preschool school age social deficits Index. décimale : PER Périodiques Résumé : Despite efforts to detect autism spectrum disorder during toddlerhood, many children with autism spectrum disorder remain undiagnosed until school age. To identify characteristics of children whose autism spectrum disorder might not be diagnosed during toddlerhood, this study used archived Autism Diagnostic Interview-Revised records to examine the historical presentation of autism spectrum disorder symptoms in 48 school-age children with autism spectrum disorder. Children diagnosed after starting school (Late-Diagnosed; n = 24) were compared to age-matched children diagnosed before school age (Early-Diagnosed; n = 24). Symptom presentation was similar between groups, with the Late-Diagnosed group exhibiting only marginally fewer symptoms historically. The most commonly reported historical symptoms were negative symptoms, namely, deficits in social behaviors. Positive symptoms, such as unusual preoccupations, rituals, and mannerisms, were less commonly reported. These findings may aid earlier identification of autism spectrum disorder in children who would likely be diagnosed at school age. En ligne : http://dx.doi.org/10.1177/1362361318777243 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=392
in Autism > 23-3 (April 2019) . - p.770-782[article] Parent-reported early symptoms of autism spectrum disorder in children without intellectual disability who were diagnosed at school age [Texte imprimé et/ou numérique] / A. GOODWIN, Auteur ; N. L. MATTHEWS, Auteur ; C. J. SMITH, Auteur . - p.770-782.
Langues : Anglais (eng)
in Autism > 23-3 (April 2019) . - p.770-782
Mots-clés : Autism Diagnostic Interview-Revised age of diagnosis early screening late diagnosis negative symptoms positive symptoms preschool school age social deficits Index. décimale : PER Périodiques Résumé : Despite efforts to detect autism spectrum disorder during toddlerhood, many children with autism spectrum disorder remain undiagnosed until school age. To identify characteristics of children whose autism spectrum disorder might not be diagnosed during toddlerhood, this study used archived Autism Diagnostic Interview-Revised records to examine the historical presentation of autism spectrum disorder symptoms in 48 school-age children with autism spectrum disorder. Children diagnosed after starting school (Late-Diagnosed; n = 24) were compared to age-matched children diagnosed before school age (Early-Diagnosed; n = 24). Symptom presentation was similar between groups, with the Late-Diagnosed group exhibiting only marginally fewer symptoms historically. The most commonly reported historical symptoms were negative symptoms, namely, deficits in social behaviors. Positive symptoms, such as unusual preoccupations, rituals, and mannerisms, were less commonly reported. These findings may aid earlier identification of autism spectrum disorder in children who would likely be diagnosed at school age. En ligne : http://dx.doi.org/10.1177/1362361318777243 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=392