A Comparison of Autism Prevalence Trends in Denmark and Western Australia / Erik T. PARNER in Journal of Autism and Developmental Disorders, 41-12 (December 2011)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 41-12 (December 2011) . - p.1601-1608 Titre : A Comparison of Autism Prevalence Trends in Denmark and Western Australia Type de document : Texte imprimé et/ou numérique Auteurs : Erik T. PARNER, Auteur ; Poul THORSEN, Auteur ; Glenys DIXON, Auteur ; Nicholas H. DE KLERK, Auteur ; Helen LEONARD, Auteur ; Natasha NASSAR, Auteur ; Jenny BOURKE, Auteur ; Carol BOWER, Auteur ; Emma J. GLASSON, Auteur Année de publication : 2011 Article en page(s) : p.1601-1608 Langues : Anglais (eng) Mots-clés : Autism  Autism spectrum disorders  Prevalence  Diagnosis  Denmark  Western Australia Index. décimale : PER Périodiques Résumé : Prevalence statistics for autism spectrum disorders (ASD) vary widely across geographical boundaries. Some variation can be explained by diagnostic methods, case ascertainment and age at diagnosis. This study compared prevalence statistics for two distinct geographical regions, Denmark and Western Australia, both of which have had population-based registers and consistent classification systems operating over the past decade. Overall ASD prevalence rates were higher in Denmark (68.5 per 10,000 children) compared with Western Australia (51.0 per 10,000 children), while the diagnosis of childhood autism was more prevalent in Western Australia (39.3 per 10,000 children) compared with Denmark (21.8 per 10,000 children). These differences are probably caused by local phenomena affecting case ascertainment but influence from biological or geographical factors may exist. En ligne : http://dx.doi.org/10.1007/s10803-011-1186-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=148 [article] A Comparison of Autism Prevalence Trends in Denmark and Western Australia [Texte imprimé et/ou numérique] / Erik T. PARNER, Auteur ; Poul THORSEN, Auteur ; Glenys DIXON, Auteur ; Nicholas H. DE KLERK, Auteur ; Helen LEONARD, Auteur ; Natasha NASSAR, Auteur ; Jenny BOURKE, Auteur ; Carol BOWER, Auteur ; Emma J. GLASSON, Auteur . - 2011 . - p.1601-1608. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 41-12 (December 2011) . - p.1601-1608 Mots-clés : Autism  Autism spectrum disorders  Prevalence  Diagnosis  Denmark  Western Australia Index. décimale : PER Périodiques Résumé : Prevalence statistics for autism spectrum disorders (ASD) vary widely across geographical boundaries. Some variation can be explained by diagnostic methods, case ascertainment and age at diagnosis. This study compared prevalence statistics for two distinct geographical regions, Denmark and Western Australia, both of which have had population-based registers and consistent classification systems operating over the past decade. Overall ASD prevalence rates were higher in Denmark (68.5 per 10,000 children) compared with Western Australia (51.0 per 10,000 children), while the diagnosis of childhood autism was more prevalent in Western Australia (39.3 per 10,000 children) compared with Denmark (21.8 per 10,000 children). These differences are probably caused by local phenomena affecting case ascertainment but influence from biological or geographical factors may exist. En ligne : http://dx.doi.org/10.1007/s10803-011-1186-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=148

A Descriptive Study on the Neonatal Morbidity Profile of Autism Spectrum Disorders, Including a Comparison with Other Neurodevelopmental Disorders / Hjördis Osk ATLADOTTIR in Journal of Autism and Developmental Disorders, 45-8 (August 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-8 (August 2015) . - p.2429-2442 Titre : A Descriptive Study on the Neonatal Morbidity Profile of Autism Spectrum Disorders, Including a Comparison with Other Neurodevelopmental Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Hjördis Osk ATLADOTTIR, Auteur ; Diana SCHENDEL, Auteur ; Erik T. PARNER, Auteur ; T. B. HENRIKSEN, Auteur Année de publication : 2015 Article en page(s) : p.2429-2442 Langues : Anglais (eng) Mots-clés : Autism  Neonatal  Hyperkinetic disorder  CP  Epilepsy  Intellectual disability Index. décimale : PER Périodiques Résumé : The aim of this study was to describe the profile of specific neonatal morbidities in children later diagnosed with autism spectrum disorder (ASD), and to compare this profile with the profile of children with hyperkinetic disorder, cerebral palsy, epilepsy or intellectual disability. This is a Danish population based cohort study, including all children born in Denmark from 1994, through 2010, and surviving the first year of life. Children with ASD as a whole have significantly elevated rates of a range of neurologic, respiratory, inflammatory, and metabolic problems in the neonatal period compared to the general population, but there are few if any indicators of a distinctive neonatal morbidity profile in ASD compared to other neurodevelopmental outcomes. En ligne : http://dx.doi.org/10.1007/s10803-015-2408-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=263 [article] A Descriptive Study on the Neonatal Morbidity Profile of Autism Spectrum Disorders, Including a Comparison with Other Neurodevelopmental Disorders [Texte imprimé et/ou numérique] / Hjördis Osk ATLADOTTIR, Auteur ; Diana SCHENDEL, Auteur ; Erik T. PARNER, Auteur ; T. B. HENRIKSEN, Auteur . - 2015 . - p.2429-2442. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-8 (August 2015) . - p.2429-2442 Mots-clés : Autism  Neonatal  Hyperkinetic disorder  CP  Epilepsy  Intellectual disability Index. décimale : PER Périodiques Résumé : The aim of this study was to describe the profile of specific neonatal morbidities in children later diagnosed with autism spectrum disorder (ASD), and to compare this profile with the profile of children with hyperkinetic disorder, cerebral palsy, epilepsy or intellectual disability. This is a Danish population based cohort study, including all children born in Denmark from 1994, through 2010, and surviving the first year of life. Children with ASD as a whole have significantly elevated rates of a range of neurologic, respiratory, inflammatory, and metabolic problems in the neonatal period compared to the general population, but there are few if any indicators of a distinctive neonatal morbidity profile in ASD compared to other neurodevelopmental outcomes. En ligne : http://dx.doi.org/10.1007/s10803-015-2408-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=263

Early Signs of Autism in Toddlers: A Follow-Up Study in the Danish National Birth Cohort / Sanne LEMCKE in Journal of Autism and Developmental Disorders, 43-10 (October 2013)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 43-10 (October 2013) . - p.2366-2375 Titre : Early Signs of Autism in Toddlers: A Follow-Up Study in the Danish National Birth Cohort Type de document : Texte imprimé et/ou numérique Auteurs : Sanne LEMCKE, Auteur ; Svend JUUL, Auteur ; Erik T. PARNER, Auteur ; Marlene B. LAURITSEN, Auteur ; Poul THORSEN, Auteur Article en page(s) : p.2366-2375 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Intellectual disability  Early signs  Parents’ interview  Follow-up study  Birth cohort Index. décimale : PER Périodiques Résumé : To identify possible early signs of autism spectrum disorder (ASD) within the Danish National Birth Cohort, we studied prospectively collected interviews from 76,441 mothers about their children’s development and behaviour at 6 and 18 months. In Danish national registries, 720 children with ASD and 231 children with intellectual disability (ID) were identified. At 6 months, associations between early signs and ASD or ID were found only in few areas. At 18 months social, language, and motor skills were delayed, and suspicion of vision and hearing problems were increased for both groups. Signs distinguishing ASD from ID were unclear, and the positive predictive values regarding ASD were below 10 % for individual predictors and aggregated risk scores. En ligne : http://dx.doi.org/10.1007/s10803-013-1785-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=215 [article] Early Signs of Autism in Toddlers: A Follow-Up Study in the Danish National Birth Cohort [Texte imprimé et/ou numérique] / Sanne LEMCKE, Auteur ; Svend JUUL, Auteur ; Erik T. PARNER, Auteur ; Marlene B. LAURITSEN, Auteur ; Poul THORSEN, Auteur . - p.2366-2375. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 43-10 (October 2013) . - p.2366-2375 Mots-clés : Autism spectrum disorder  Intellectual disability  Early signs  Parents’ interview  Follow-up study  Birth cohort Index. décimale : PER Périodiques Résumé : To identify possible early signs of autism spectrum disorder (ASD) within the Danish National Birth Cohort, we studied prospectively collected interviews from 76,441 mothers about their children’s development and behaviour at 6 and 18 months. In Danish national registries, 720 children with ASD and 231 children with intellectual disability (ID) were identified. At 6 months, associations between early signs and ASD or ID were found only in few areas. At 18 months social, language, and motor skills were delayed, and suspicion of vision and hearing problems were increased for both groups. Signs distinguishing ASD from ID were unclear, and the positive predictive values regarding ASD were below 10 % for individual predictors and aggregated risk scores. En ligne : http://dx.doi.org/10.1007/s10803-013-1785-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=215

Familial confounding of the association between maternal smoking in pregnancy and autism spectrum disorder in offspring / Amy E. KALKBRENNER in Autism Research, 13-1 (January 2020)  

Public ISBD [article]  inAutism Research > 13-1 (January 2020) . - p.134-144 Titre : Familial confounding of the association between maternal smoking in pregnancy and autism spectrum disorder in offspring Type de document : Texte imprimé et/ou numérique Auteurs : Amy E. KALKBRENNER, Auteur ; Sandra M. MEIER, Auteur ; Paul MADLEY-DOWD, Auteur ; Christine LADD-ACOSTA, Auteur ; Margaret Daniele FALLIN, Auteur ; Erik T. PARNER, Auteur ; Diana SCHENDEL, Auteur Article en page(s) : p.134-144 Langues : Anglais (eng) Mots-clés : attention deficit hyperactivity disorder  autism  autism spectrum disorder  confounding  family-based designs  intellectual disability  maternal smoking  neurodevelopment  tobacco Index. décimale : PER Périodiques Résumé : Evidence supports no link between maternal smoking in pregnancy and autism spectrum disorder (autism) overall. To address remaining questions about the unexplained heterogeneity between study results and the possibility of risk for specific autism sub-phenotypes, we conducted a whole-population cohort study in Denmark. We followed births 1991-2011 (1,294,906 persons, including 993,301 siblings in 728,271 families), from 1 year of age until an autism diagnosis (13,547), death, emigration, or December 31, 2012. Autism, with and without attention deficit hyperactivity disorder (ADHD) and with and without intellectual disability (ID) were based on ICD-8 and ICD-10 codes from Danish national health registers, including 3,319 autism + ADHD, 10,228 autism - no ADHD, 2,205 autism + ID, and 11,342 autism - no ID. We estimated hazard ratios (HRs) and 95% confidence intervals (95% CIs) between any maternal smoking (from birth records) and autism (or sub-phenotypes) using survival models with robust standard errors, stratifying by birth year and adjusting for child sex, parity, and parental age, education, income, and psychiatric history. To additionally address confounding using family designs, we constructed a maternal cluster model (adjusting for the smoking proportion within the family), and a stratified sibling model. Associations with maternal smoking and autism were elevated in conventional adjusted analyses (HR of 1.17 [1.13-1.22]) but attenuated in the maternal cluster (0.98 [0.88-1.09]) and sibling (0.86 [0.64-1.15]) models. Similarly, risks of autism sub-phenotypes with maternal smoking were attenuated in the family-based models. Together these results support that smoking in pregnancy is not linked with autism or select autism comorbid sub-phenotypes after accounting for familial confounding. Autism Res 2020, 13: 134-144. (c) 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Smoking during pregnancy has many harmful impacts, which may include harming the baby's developing brain. However, in a study of thousands of families in Denmark, it does not appear that smoking in pregnancy leads to autism or autism in combination with intellectual problems or attention deficits, once you account for the way smoking patterns and developmental disabilities run in families. En ligne : http://dx.doi.org/10.1002/aur.2196 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=415 [article] Familial confounding of the association between maternal smoking in pregnancy and autism spectrum disorder in offspring [Texte imprimé et/ou numérique] / Amy E. KALKBRENNER, Auteur ; Sandra M. MEIER, Auteur ; Paul MADLEY-DOWD, Auteur ; Christine LADD-ACOSTA, Auteur ; Margaret Daniele FALLIN, Auteur ; Erik T. PARNER, Auteur ; Diana SCHENDEL, Auteur . - p.134-144. Langues : Anglais (eng) in Autism Research > 13-1 (January 2020) . - p.134-144 Mots-clés : attention deficit hyperactivity disorder  autism  autism spectrum disorder  confounding  family-based designs  intellectual disability  maternal smoking  neurodevelopment  tobacco Index. décimale : PER Périodiques Résumé : Evidence supports no link between maternal smoking in pregnancy and autism spectrum disorder (autism) overall. To address remaining questions about the unexplained heterogeneity between study results and the possibility of risk for specific autism sub-phenotypes, we conducted a whole-population cohort study in Denmark. We followed births 1991-2011 (1,294,906 persons, including 993,301 siblings in 728,271 families), from 1 year of age until an autism diagnosis (13,547), death, emigration, or December 31, 2012. Autism, with and without attention deficit hyperactivity disorder (ADHD) and with and without intellectual disability (ID) were based on ICD-8 and ICD-10 codes from Danish national health registers, including 3,319 autism + ADHD, 10,228 autism - no ADHD, 2,205 autism + ID, and 11,342 autism - no ID. We estimated hazard ratios (HRs) and 95% confidence intervals (95% CIs) between any maternal smoking (from birth records) and autism (or sub-phenotypes) using survival models with robust standard errors, stratifying by birth year and adjusting for child sex, parity, and parental age, education, income, and psychiatric history. To additionally address confounding using family designs, we constructed a maternal cluster model (adjusting for the smoking proportion within the family), and a stratified sibling model. Associations with maternal smoking and autism were elevated in conventional adjusted analyses (HR of 1.17 [1.13-1.22]) but attenuated in the maternal cluster (0.98 [0.88-1.09]) and sibling (0.86 [0.64-1.15]) models. Similarly, risks of autism sub-phenotypes with maternal smoking were attenuated in the family-based models. Together these results support that smoking in pregnancy is not linked with autism or select autism comorbid sub-phenotypes after accounting for familial confounding. Autism Res 2020, 13: 134-144. (c) 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Smoking during pregnancy has many harmful impacts, which may include harming the baby's developing brain. However, in a study of thousands of families in Denmark, it does not appear that smoking in pregnancy leads to autism or autism in combination with intellectual problems or attention deficits, once you account for the way smoking patterns and developmental disabilities run in families. En ligne : http://dx.doi.org/10.1002/aur.2196 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=415

Gestational Age and Autism Spectrum Disorder: Trends in Risk Over Time / Hjördis Osk ATLADOTTIR in Autism Research, 9-2 (February 2016)  

Public ISBD [article]  inAutism Research > 9-2 (February 2016) . - p.224-231 Titre : Gestational Age and Autism Spectrum Disorder: Trends in Risk Over Time Type de document : Texte imprimé et/ou numérique Auteurs : Hjördis Osk ATLADOTTIR, Auteur ; Diana SCHENDEL, Auteur ; T. B. HENRIKSEN, Auteur ; L. HJORT, Auteur ; Erik T. PARNER, Auteur Article en page(s) : p.224-231 Langues : Anglais (eng) Mots-clés : autism spectrum disorder  autism  gestational age  preterm birth  time trend Index. décimale : PER Périodiques Résumé : Autism Spectrum Disorder (ASD) is a serious neurodevelopmental disorder. Several previous studies have identified preterm birth as a risk factor for ASD but none has studied whether the association between gestational age and ASD has changed over time. This is a Danish population-based follow-up study including live-born singletons born in Denmark between 1980 and 2009, identified in the Danish Medical Birth Registry, a study population of 1,775,397 children. We used a Cox regression model combined with spline to study the risk for ASD by gestational age across three decades of birth cohorts. We included 19,020 children diagnosed with ASD. Across all birth year cohorts, we found that the risk of being diagnosed with ASD increased with lower gestational age (P-value: <0.01). Across all gestational weeks, we found a statistically significant higher risk estimates in birth cohort 1980 to 1989, compared to birth cohorts 1990 to 1999 and 2000 to 2009, respectively. No statistically significant difference in risk estimates was observed between birth cohort 1990 to 1999 and 2000 to 2009. The observed time trend in risk of ASD after preterm birth may reflect: (1) a change in the risk profile of persons with ASD due to the broadening of ASD diagnostic criteria over time; or (2) improved neonatal care for low GA infants, which has reduced risk of adverse outcomes like ASD in preterm children. En ligne : http://dx.doi.org/10.1002/aur.1525 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=282 [article] Gestational Age and Autism Spectrum Disorder: Trends in Risk Over Time [Texte imprimé et/ou numérique] / Hjördis Osk ATLADOTTIR, Auteur ; Diana SCHENDEL, Auteur ; T. B. HENRIKSEN, Auteur ; L. HJORT, Auteur ; Erik T. PARNER, Auteur . - p.224-231. Langues : Anglais (eng) in Autism Research > 9-2 (February 2016) . - p.224-231 Mots-clés : autism spectrum disorder  autism  gestational age  preterm birth  time trend Index. décimale : PER Périodiques Résumé : Autism Spectrum Disorder (ASD) is a serious neurodevelopmental disorder. Several previous studies have identified preterm birth as a risk factor for ASD but none has studied whether the association between gestational age and ASD has changed over time. This is a Danish population-based follow-up study including live-born singletons born in Denmark between 1980 and 2009, identified in the Danish Medical Birth Registry, a study population of 1,775,397 children. We used a Cox regression model combined with spline to study the risk for ASD by gestational age across three decades of birth cohorts. We included 19,020 children diagnosed with ASD. Across all birth year cohorts, we found that the risk of being diagnosed with ASD increased with lower gestational age (P-value: <0.01). Across all gestational weeks, we found a statistically significant higher risk estimates in birth cohort 1980 to 1989, compared to birth cohorts 1990 to 1999 and 2000 to 2009, respectively. No statistically significant difference in risk estimates was observed between birth cohort 1990 to 1999 and 2000 to 2009. The observed time trend in risk of ASD after preterm birth may reflect: (1) a change in the risk profile of persons with ASD due to the broadening of ASD diagnostic criteria over time; or (2) improved neonatal care for low GA infants, which has reduced risk of adverse outcomes like ASD in preterm children. En ligne : http://dx.doi.org/10.1002/aur.1525 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=282

Maternal Infection Requiring Hospitalization During Pregnancy and Autism Spectrum Disorders / Hjördis Osk ATLADOTTIR in Journal of Autism and Developmental Disorders, 40-12 (December 2010)  

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Optimal interpregnancy interval in autism spectrum disorder: A multi-national study of a modifiable risk factor / G. PEREIRA in Autism Research, 14-11 (November 2021)  

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Patterns of Contact with Hospital for Children with an Autism Spectrum Disorder: A Danish Register-Based Study / Hjördis Osk ATLADOTTIR in Journal of Autism and Developmental Disorders, 42-8 (August 2012)  

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Stoppage in Autism Spectrum Disorders / Therese K. GRØNBORG in Journal of Autism and Developmental Disorders, 45-11 (November 2015)  

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The International Collaboration for Autism Registry Epidemiology (iCARE): Multinational Registry-Based Investigations of Autism Risk Factors and Trends / Diana SCHENDEL in Journal of Autism and Developmental Disorders, 43-11 (November 2013)  

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Urbanicity and Autism Spectrum Disorders / Marlene B. LAURITSEN in Journal of Autism and Developmental Disorders, 44-2 (February 2014)  

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