Documents disponibles écrits par cet auteur

Advancing paternal age and offspring violent offending: A sibling-comparison study / Ralf KUJA-HALKOLA in Development and Psychopathology, 24-3 (August 2012) 

Public ISBD [article]  in Development and Psychopathology > 24-3 (August 2012) . - p.739-53 Titre : Advancing paternal age and offspring violent offending: A sibling-comparison study Type de document : texte imprimé Auteurs : Ralf KUJA-HALKOLA, Auteur ; Yudi PAWITAN, Auteur ; Brian M. D'ONOFRIO, Auteur ; Niklas LANGSTROM, Auteur ; Paul LICHTENSTEIN, Auteur Année de publication : 2012 Article en page(s) : p.739-53 Langues : Anglais (eng) Catégories : FRATRIE MALTRAITANCE RELATION PERE-ENFANT Index. décimale : PER Périodiques Résumé : Children born to older fathers are at higher risk to develop severe psychopathology (e.g., schizophrenia and bipolar disorder), possibly because of increased de novo mutations during spermatogenesis with older paternal age. Because severe psychopathology is correlated with antisocial behavior, we examined possible associations between advancing paternal age and offspring violent offending. Interlinked Swedish national registers provided information on fathers' age at childbirth and violent criminal convictions in all offspring born from 1958 to 1979 (N = 2,359,921). We used ever committing a violent crime and number of violent crimes as indices of violent offending. The data included information on multiple levels; we compared differentially exposed siblings in within-family analyses to rigorously test causal influences. In the entire population, advancing paternal age predicted offspring violent crime according to both indices. Congruent with a causal effect, this association remained for rates of violent crime in within-family analyses. However, in within-family analyses, we found no association with ever committing a violent crime, suggesting that factors shared by siblings (genes and environment) confounded this association. Life-course persistent criminality has been proposed to have a partly biological etiology; our results agree with a stronger biological effect (i.e., de novo mutations) on persistent violent offending. En ligne : http://dx.doi.org/10.1017/S095457941200034X Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=1779 [article] Advancing paternal age and offspring violent offending: A sibling-comparison study [texte imprimé] / Ralf KUJA-HALKOLA, Auteur ; Yudi PAWITAN, Auteur ; Brian M. D'ONOFRIO, Auteur ; Niklas LANGSTROM, Auteur ; Paul LICHTENSTEIN, Auteur . - 2012 . - p.739-53. Langues : Anglais (eng) in Development and Psychopathology > 24-3 (August 2012) . - p.739-53 Catégories : FRATRIE MALTRAITANCE RELATION PERE-ENFANT Index. décimale : PER Périodiques Résumé : Children born to older fathers are at higher risk to develop severe psychopathology (e.g., schizophrenia and bipolar disorder), possibly because of increased de novo mutations during spermatogenesis with older paternal age. Because severe psychopathology is correlated with antisocial behavior, we examined possible associations between advancing paternal age and offspring violent offending. Interlinked Swedish national registers provided information on fathers' age at childbirth and violent criminal convictions in all offspring born from 1958 to 1979 (N = 2,359,921). We used ever committing a violent crime and number of violent crimes as indices of violent offending. The data included information on multiple levels; we compared differentially exposed siblings in within-family analyses to rigorously test causal influences. In the entire population, advancing paternal age predicted offspring violent crime according to both indices. Congruent with a causal effect, this association remained for rates of violent crime in within-family analyses. However, in within-family analyses, we found no association with ever committing a violent crime, suggesting that factors shared by siblings (genes and environment) confounded this association. Life-course persistent criminality has been proposed to have a partly biological etiology; our results agree with a stronger biological effect (i.e., de novo mutations) on persistent violent offending. En ligne : http://dx.doi.org/10.1017/S095457941200034X Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=1779

Codevelopment of ADHD and externalizing behavior from childhood to adulthood / Ralf KUJA-HALKOLA in Journal of Child Psychology and Psychiatry, 56-6 (June 2015) 

Public ISBD [article]  in Journal of Child Psychology and Psychiatry > 56-6 (June 2015) . - p.640-647 Titre : Codevelopment of ADHD and externalizing behavior from childhood to adulthood Type de document : texte imprimé Auteurs : Ralf KUJA-HALKOLA, Auteur ; Paul LICHTENSTEIN, Auteur ; Brian M. D'ONOFRIO, Auteur ; Henrik LARSSON, Auteur Article en page(s) : p.640-647 Langues : Anglais (eng) Mots-clés : ADHD  antisocial behavior  longitudinal studies  comorbidity  genetics  behavioral Index. décimale : PER Périodiques Résumé : Background Attention-Deficit/Hyperactivity Disorder (ADHD) frequently co-occurs with externalizing disorders, but a clear understanding of the etiologic underpinnings is hampered by the limited understanding of the codevelopment of the traits from childhood into early adulthood. Methods Using a birth cohort of 2600 twins, the Swedish Twin study of Child and Adolescent Development study, assessed at ages 8–9, 13–14, 16–17, and 19–20, we investigated the codevelopment of ADHD and externalizing behavior from childhood to adulthood. The analyses examined ADHD-like and externalizing traits, as rated by twins and their parents using the Attention Problems scale and Externalizing scale of the Child Behavior Checklist, and estimated cross-lagged effects (one trait at one time-point predicting the other at the next). The covariation between the traits were decomposed into stable (effects carried over from the prior time-points) and innovative (new effects for each time-point) sources; each source was further decomposed into additive genetics, shared and nonshared environment. Results The analysis suggested that externalizing traits in middle childhood (age 8–9) predicted ADHD-like traits in early adolescence (age 13–14), whereas the reverse association was nonsignificant. In contrast, ADHD-like traits in lateadolescence (age 16–17) predicted externalizing traits in early adulthood (age 19–20). The correlation between ADHD-like and externalizing traits increased over time. At all time-points, innovative sources contributed substantially to maintained comorbidity. Genetic effects explained 67% of the covariation at each time-point; importantly, nearly 50% of these effects were innovative. Conclusions This study challenges the belief that ADHD generally precedes externalizing behaviors; rather, change in the etiologic factors across the development is the rule. The effects were due to both new genetic and environmental factors emerging up to young adulthood. Clinicians and researchers needs to consider complex etiologic and developmental models for the comorbidity between ADHD and externalizing behaviors. En ligne : http://dx.doi.org/10.1111/jcpp.12340 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=2603 [article] Codevelopment of ADHD and externalizing behavior from childhood to adulthood [texte imprimé] / Ralf KUJA-HALKOLA, Auteur ; Paul LICHTENSTEIN, Auteur ; Brian M. D'ONOFRIO, Auteur ; Henrik LARSSON, Auteur . - p.640-647. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 56-6 (June 2015) . - p.640-647 Mots-clés : ADHD  antisocial behavior  longitudinal studies  comorbidity  genetics  behavioral Index. décimale : PER Périodiques Résumé : Background Attention-Deficit/Hyperactivity Disorder (ADHD) frequently co-occurs with externalizing disorders, but a clear understanding of the etiologic underpinnings is hampered by the limited understanding of the codevelopment of the traits from childhood into early adulthood. Methods Using a birth cohort of 2600 twins, the Swedish Twin study of Child and Adolescent Development study, assessed at ages 8–9, 13–14, 16–17, and 19–20, we investigated the codevelopment of ADHD and externalizing behavior from childhood to adulthood. The analyses examined ADHD-like and externalizing traits, as rated by twins and their parents using the Attention Problems scale and Externalizing scale of the Child Behavior Checklist, and estimated cross-lagged effects (one trait at one time-point predicting the other at the next). The covariation between the traits were decomposed into stable (effects carried over from the prior time-points) and innovative (new effects for each time-point) sources; each source was further decomposed into additive genetics, shared and nonshared environment. Results The analysis suggested that externalizing traits in middle childhood (age 8–9) predicted ADHD-like traits in early adolescence (age 13–14), whereas the reverse association was nonsignificant. In contrast, ADHD-like traits in lateadolescence (age 16–17) predicted externalizing traits in early adulthood (age 19–20). The correlation between ADHD-like and externalizing traits increased over time. At all time-points, innovative sources contributed substantially to maintained comorbidity. Genetic effects explained 67% of the covariation at each time-point; importantly, nearly 50% of these effects were innovative. Conclusions This study challenges the belief that ADHD generally precedes externalizing behaviors; rather, change in the etiologic factors across the development is the rule. The effects were due to both new genetic and environmental factors emerging up to young adulthood. Clinicians and researchers needs to consider complex etiologic and developmental models for the comorbidity between ADHD and externalizing behaviors. En ligne : http://dx.doi.org/10.1111/jcpp.12340 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=2603

Familial aggregation of attention-deficit/hyperactivity disorder / Qi CHEN in Journal of Child Psychology and Psychiatry, 58-3 (March 2017) 

Public ISBD [article]  in Journal of Child Psychology and Psychiatry > 58-3 (March 2017) . - p.231-239 Titre : Familial aggregation of attention-deficit/hyperactivity disorder Type de document : texte imprimé Auteurs : Qi CHEN, Auteur ; Isabell BRIKELL, Auteur ; Paul LICHTENSTEIN, Auteur ; Eva SERLACHIUS, Auteur ; Ralf KUJA-HALKOLA, Auteur ; Sven SANDIN, Auteur ; Henrik LARSSON, Auteur Article en page(s) : p.231-239 Langues : Anglais (eng) Mots-clés : Attention-deficit/hyperactivity disorder  diagnosis  family factor  sex differences  adulthood Index. décimale : PER Périodiques Résumé : Background Attention-deficit/hyperactivity disorder (ADHD) aggregates in families. To date, the strength, pattern, and characteristics of the familial aggregation have not been thoroughly assessed in a population-based family sample. Methods In this cohort study, we identified relative pairs of twins, full and half-siblings, and full and half cousins from 1,656,943 unique individuals born in Sweden between 1985 and 2006. The relatives of index persons were followed from their third birthday to 31 December 2009 for ADHD diagnosis. Birth year adjusted hazard ratio (HR), that is, the rate of ADHD in relatives of ADHD-affected index persons compared with the rate of ADHD in relatives of unaffected index persons, was estimated in the different types of relatives using Cox proportional hazards model. Results During the follow-up, 31,865 individuals were diagnosed with ADHD (male to female ratio was 3.7). The birth year adjusted HRs were as follows: 70.45 for monozygotic twins; 8.44 for dizygotic twins; 8.27 for full siblings; 2.86 for maternal half-siblings; 2.31 for paternal half-siblings; 2.24 for full cousins; 1.47 for half cousins. Maternal half-siblings had significantly higher HR than in paternal half-siblings. The HR did not seem to be affected by index person's sex. Full siblings of index persons with ADHD diagnosis present at age 18 or older had a higher rate of ADHD (HR: 11.49) than full siblings of index persons with ADHD diagnosis only before age 18 (HR: 4.68). Conclusions Familial aggregation of ADHD increases with increasing genetic relatedness. The familial aggregation is driven by not only genetic factors but also a small amount of shared environmental factors. Persistence of ADHD into adulthood indexes stronger familial aggregation of ADHD. En ligne : http://dx.doi.org/10.1111/jcpp.12616 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=3039 [article] Familial aggregation of attention-deficit/hyperactivity disorder [texte imprimé] / Qi CHEN, Auteur ; Isabell BRIKELL, Auteur ; Paul LICHTENSTEIN, Auteur ; Eva SERLACHIUS, Auteur ; Ralf KUJA-HALKOLA, Auteur ; Sven SANDIN, Auteur ; Henrik LARSSON, Auteur . - p.231-239. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 58-3 (March 2017) . - p.231-239 Mots-clés : Attention-deficit/hyperactivity disorder  diagnosis  family factor  sex differences  adulthood Index. décimale : PER Périodiques Résumé : Background Attention-deficit/hyperactivity disorder (ADHD) aggregates in families. To date, the strength, pattern, and characteristics of the familial aggregation have not been thoroughly assessed in a population-based family sample. Methods In this cohort study, we identified relative pairs of twins, full and half-siblings, and full and half cousins from 1,656,943 unique individuals born in Sweden between 1985 and 2006. The relatives of index persons were followed from their third birthday to 31 December 2009 for ADHD diagnosis. Birth year adjusted hazard ratio (HR), that is, the rate of ADHD in relatives of ADHD-affected index persons compared with the rate of ADHD in relatives of unaffected index persons, was estimated in the different types of relatives using Cox proportional hazards model. Results During the follow-up, 31,865 individuals were diagnosed with ADHD (male to female ratio was 3.7). The birth year adjusted HRs were as follows: 70.45 for monozygotic twins; 8.44 for dizygotic twins; 8.27 for full siblings; 2.86 for maternal half-siblings; 2.31 for paternal half-siblings; 2.24 for full cousins; 1.47 for half cousins. Maternal half-siblings had significantly higher HR than in paternal half-siblings. The HR did not seem to be affected by index person's sex. Full siblings of index persons with ADHD diagnosis present at age 18 or older had a higher rate of ADHD (HR: 11.49) than full siblings of index persons with ADHD diagnosis only before age 18 (HR: 4.68). Conclusions Familial aggregation of ADHD increases with increasing genetic relatedness. The familial aggregation is driven by not only genetic factors but also a small amount of shared environmental factors. Persistence of ADHD into adulthood indexes stronger familial aggregation of ADHD. En ligne : http://dx.doi.org/10.1111/jcpp.12616 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=3039

Machine-Learning prediction of comorbid substance use disorders in ADHD youth using Swedish registry data / Yanli ZHANG-JAMES in Journal of Child Psychology and Psychiatry, 61-12 (December 2020) 

Public ISBD [article]  in Journal of Child Psychology and Psychiatry > 61-12 (December 2020) . - p.1370-1379 Titre : Machine-Learning prediction of comorbid substance use disorders in ADHD youth using Swedish registry data Type de document : texte imprimé Auteurs : Yanli ZHANG-JAMES, Auteur ; Qi CHEN, Auteur ; Ralf KUJA-HALKOLA, Auteur ; Paul LICHTENSTEIN, Auteur ; Henrik LARSSON, Auteur ; Stephen V FARAONE, Auteur Article en page(s) : p.1370-1379 Langues : Anglais (eng) Mots-clés : Machine learning  attention-deficit hyperactive disorder  comorbidity  risk factor  substance use disorder Index. décimale : PER Périodiques Résumé : BACKGROUND: Children with attention-deficit/hyperactivity disorder (ADHD) have a high risk for substance use disorders (SUDs). Early identification of at-risk youth would help allocate scarce resources for prevention programs. METHODS: Psychiatric and somatic diagnoses, family history of these disorders, measures of socioeconomic distress, and information about birth complications were obtained from the national registers in Sweden for 19,787 children with ADHD born between 1989 and 1993. We trained (a) a cross-sectional random forest (RF) model using data available by age 17 to predict SUD diagnosis between ages 18 and 19; and (b) a longitudinal recurrent neural network (RNN) model with the Long Short-Term Memory (LSTM) architecture to predict new diagnoses at each age. RESULTS: The area under the receiver operating characteristic curve (AUC) was 0.73(95%CI 0.70-0.76) for the random forest model (RF). Removing prior diagnosis from the predictors, the RF model was still able to achieve significant AUCs when predicting all SUD diagnoses (0.69, 95%CI 0.66-0.72) or new diagnoses (0.67, 95%CI: 0.64, 0.71) during age 18-19. For the model predicting new diagnoses, model calibration was good with a low Brier score of 0.086. Longitudinal LSTM model was able to predict later SUD risks at as early as 2 years age, 10 years before the earliest diagnosis. The average AUC from longitudinal models predicting new diagnoses 1, 2, 5 and 10 years in the future was 0.63. CONCLUSIONS: Population registry data can be used to predict at-risk comorbid SUDs in individuals with ADHD. Such predictions can be made many years prior to age of the onset, and their SUD risks can be monitored using longitudinal models over years during child development. Nevertheless, more work is needed to create prediction models based on electronic health records or linked population registers that are sufficiently accurate for use in the clinic. En ligne : http://dx.doi.org/10.1111/jcpp.13226 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=4345 [article] Machine-Learning prediction of comorbid substance use disorders in ADHD youth using Swedish registry data [texte imprimé] / Yanli ZHANG-JAMES, Auteur ; Qi CHEN, Auteur ; Ralf KUJA-HALKOLA, Auteur ; Paul LICHTENSTEIN, Auteur ; Henrik LARSSON, Auteur ; Stephen V FARAONE, Auteur . - p.1370-1379. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 61-12 (December 2020) . - p.1370-1379 Mots-clés : Machine learning  attention-deficit hyperactive disorder  comorbidity  risk factor  substance use disorder Index. décimale : PER Périodiques Résumé : BACKGROUND: Children with attention-deficit/hyperactivity disorder (ADHD) have a high risk for substance use disorders (SUDs). Early identification of at-risk youth would help allocate scarce resources for prevention programs. METHODS: Psychiatric and somatic diagnoses, family history of these disorders, measures of socioeconomic distress, and information about birth complications were obtained from the national registers in Sweden for 19,787 children with ADHD born between 1989 and 1993. We trained (a) a cross-sectional random forest (RF) model using data available by age 17 to predict SUD diagnosis between ages 18 and 19; and (b) a longitudinal recurrent neural network (RNN) model with the Long Short-Term Memory (LSTM) architecture to predict new diagnoses at each age. RESULTS: The area under the receiver operating characteristic curve (AUC) was 0.73(95%CI 0.70-0.76) for the random forest model (RF). Removing prior diagnosis from the predictors, the RF model was still able to achieve significant AUCs when predicting all SUD diagnoses (0.69, 95%CI 0.66-0.72) or new diagnoses (0.67, 95%CI: 0.64, 0.71) during age 18-19. For the model predicting new diagnoses, model calibration was good with a low Brier score of 0.086. Longitudinal LSTM model was able to predict later SUD risks at as early as 2 years age, 10 years before the earliest diagnosis. The average AUC from longitudinal models predicting new diagnoses 1, 2, 5 and 10 years in the future was 0.63. CONCLUSIONS: Population registry data can be used to predict at-risk comorbid SUDs in individuals with ADHD. Such predictions can be made many years prior to age of the onset, and their SUD risks can be monitored using longitudinal models over years during child development. Nevertheless, more work is needed to create prediction models based on electronic health records or linked population registers that are sufficiently accurate for use in the clinic. En ligne : http://dx.doi.org/10.1111/jcpp.13226 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=4345

Research Review: The strength of the genetic overlap between ADHD and other psychiatric symptoms - a systematic review and meta-analysis / Anneli ANDERSSON in Journal of Child Psychology and Psychiatry, 61-11 (November 2020) 

Public ISBD [article]  in Journal of Child Psychology and Psychiatry > 61-11 (November 2020) . - p.1173-1183 Titre : Research Review: The strength of the genetic overlap between ADHD and other psychiatric symptoms - a systematic review and meta-analysis Type de document : texte imprimé Auteurs : Anneli ANDERSSON, Auteur ; Catherine TUVBLAD, Auteur ; Qi CHEN, Auteur ; Ebba DU RIETZ, Auteur ; Samuele CORTESE, Auteur ; Ralf KUJA-HALKOLA, Auteur ; Henrik LARSSON, Auteur Article en page(s) : p.1173-1183 Langues : Anglais (eng) Mots-clés : Adhd  externalizing  genetic  internalizing  neurodevelopmental  overlap  twins Index. décimale : PER Périodiques Résumé : BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) frequently co-occurs with other psychiatric disorders. Twin studies have established that these co-occurrences are in part due to shared genetic risks. However, the strength of these genetic overlaps and the potential heterogeneity accounted for by type of psychiatric symptoms, age, and methods of assessment remain unclear. We conducted a systematic review to fill this gap. METHODS: We searched PubMed, PsycINFO, Embase, and Web of Science until March 07, 2019. Genetic correlations (r(g) ) were used as effect size measures. RESULTS: A total of 31 independent studies fulfilled the inclusion criteria. The pooled estimates showed that the associations between ADHD and other psychiatric symptoms were partly explained by shared genetic factors, with a pooled genetic correlation of 0.50, 95% confidence interval: 0.46-0.60. The genetic correlations (r(g) ) between ADHD and externalizing (r(g)  = .49 [0.37-0.61]), internalizing (r(g)  = .50 [0.39-0.69]), and neurodevelopmental (r(g)  = .56 [0.47-0.66]) symptoms were similar in magnitude. The genetic correlations in childhood and adulthood were r(g)  = .53 (0.43-0.63) and r(g)  = .51 (0.44-0.56), respectively. For methods of assessment, the genetic correlations were also similar in strength, self-reports r(g)  = .52 (0.47-0.58), other informants r(g)  = .55 (0.41-0.69), and combined raters r(g)  = .50 (0.33-0.65). CONCLUSIONS: These findings indicate that the co-occurrence of externalizing, internalizing, and neurodevelopmental disorder symptoms in individuals with ADHD symptoms in part is due to a shared genetic risk. En ligne : http://dx.doi.org/10.1111/jcpp.13233 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=4343 [article] Research Review: The strength of the genetic overlap between ADHD and other psychiatric symptoms - a systematic review and meta-analysis [texte imprimé] / Anneli ANDERSSON, Auteur ; Catherine TUVBLAD, Auteur ; Qi CHEN, Auteur ; Ebba DU RIETZ, Auteur ; Samuele CORTESE, Auteur ; Ralf KUJA-HALKOLA, Auteur ; Henrik LARSSON, Auteur . - p.1173-1183. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 61-11 (November 2020) . - p.1173-1183 Mots-clés : Adhd  externalizing  genetic  internalizing  neurodevelopmental  overlap  twins Index. décimale : PER Périodiques Résumé : BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) frequently co-occurs with other psychiatric disorders. Twin studies have established that these co-occurrences are in part due to shared genetic risks. However, the strength of these genetic overlaps and the potential heterogeneity accounted for by type of psychiatric symptoms, age, and methods of assessment remain unclear. We conducted a systematic review to fill this gap. METHODS: We searched PubMed, PsycINFO, Embase, and Web of Science until March 07, 2019. Genetic correlations (r(g) ) were used as effect size measures. RESULTS: A total of 31 independent studies fulfilled the inclusion criteria. The pooled estimates showed that the associations between ADHD and other psychiatric symptoms were partly explained by shared genetic factors, with a pooled genetic correlation of 0.50, 95% confidence interval: 0.46-0.60. The genetic correlations (r(g) ) between ADHD and externalizing (r(g)  = .49 [0.37-0.61]), internalizing (r(g)  = .50 [0.39-0.69]), and neurodevelopmental (r(g)  = .56 [0.47-0.66]) symptoms were similar in magnitude. The genetic correlations in childhood and adulthood were r(g)  = .53 (0.43-0.63) and r(g)  = .51 (0.44-0.56), respectively. For methods of assessment, the genetic correlations were also similar in strength, self-reports r(g)  = .52 (0.47-0.58), other informants r(g)  = .55 (0.41-0.69), and combined raters r(g)  = .50 (0.33-0.65). CONCLUSIONS: These findings indicate that the co-occurrence of externalizing, internalizing, and neurodevelopmental disorder symptoms in individuals with ADHD symptoms in part is due to a shared genetic risk. En ligne : http://dx.doi.org/10.1111/jcpp.13233 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=4343

Shared familial risk factors between attention-deficit/hyperactivity disorder and overweight/obesity – a population-based familial coaggregation study in Sweden / Qi CHEN in Journal of Child Psychology and Psychiatry, 58-6 (June 2017) 

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The role of general anesthesia on traits of neurodevelopmental disorders in a Swedish cohort of twins / Albert CASTELLHEIM in Journal of Child Psychology and Psychiatry, 59-9 (September 2018) 

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Trajectories of healthcare utilization and costs of psychiatric and somatic multimorbidity in adults with childhood ADHD: a prospective register-based study / Ebba DU RIETZ in Journal of Child Psychology and Psychiatry, 61-9 (September 2020) 

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Use of medication for attention-deficit/hyperactivity disorder and risk of unintentional injuries in children and adolescents with co-occurring neurodevelopmental disorders / Laura GHIRARDI in Journal of Child Psychology and Psychiatry, 61-2 (February 2020) 

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