2023
Evaluation of Birth Weight and Neurodevelopmental Conditions Among Monozygotic and Dizygotic Twins
Isaksson J, Ruchkin V, Ljungström T, Bölte S. Evaluation of Birth Weight and Neurodevelopmental Conditions Among Monozygotic and Dizygotic Twins. JAMA Network Open 2023, 6: e2321165. PMID: 37389871, PMCID: PMC10314302, DOI: 10.1001/jamanetworkopen.2023.21165.Peer-Reviewed Original ResearchConceptsAttention-deficit/hyperactivity disorderLow birth weightBirth weightHigh birth weightLower oddsNeurodevelopmental conditionsIntellectual disabilityFetal growth restrictionCase-control studyMonozygotic twinsDizygotic twinsTwin pairsMedian ageGrowth restrictionMAIN OUTCOMEGenetic predispositionEarly identificationCo-twin studyMonozygotic pairsDiagnostic assessmentHyperactivity disorderParticipant visitsGenetic riskADHD diagnosisDizygotic pairs
2022
Nonshared environmental factors in the aetiology of autism and other neurodevelopmental conditions: a monozygotic co-twin control study
Isaksson J, Ruchkin V, Aho N, Lundin Remnélius K, Marschik P, Bölte S. Nonshared environmental factors in the aetiology of autism and other neurodevelopmental conditions: a monozygotic co-twin control study. Molecular Autism 2022, 13: 8. PMID: 35183250, PMCID: PMC8858556, DOI: 10.1186/s13229-022-00487-5.Peer-Reviewed Original ResearchConceptsAttention-deficit/hyperactivity disorderAutism spectrum disorderNeurodevelopmental conditionsCo-twin designHyperactivity disorderSpectrum disorderCo-twin control studyEarly environmental riskLower IQAutismEtiology of autismIntellectual disabilityPrevious researchEarly interventionEarly childhoodConclusionsThe findingsPostnatal riskEquation modelMonozygotic co‐twin control studyBackgroundA significant proportionRisk loadSeparate risk factorsTwin pairsTargeted preventionWeight discordance
2017
Attention-deficit/hyperactivity disorder and physical multimorbidity: A population-based study
Stickley A, Koyanagi A, Takahashi H, Ruchkin V, Inoue Y, Kamio Y. Attention-deficit/hyperactivity disorder and physical multimorbidity: A population-based study. European Psychiatry 2017, 45: 227-234. PMID: 28957792, DOI: 10.1016/j.eurpsy.2017.07.010.Peer-Reviewed Original ResearchConceptsPossible attention-deficit/hyperactivity disorderAttention-deficit/hyperactivity disorderHyperactivity disorderAdult attention-deficit/hyperactivity disorderPhysical multimorbidityStressful life eventsPhysical diseaseADHD symptomsPhysical health conditionsSignificant mediatorAdult Psychiatric Morbidity Survey 2007Life eventsMediation analysisPopulation-based studyMultivariable logistic regressionPoor health outcomesTimes higher oddsEnglish general populationLittle researchDoctor/Higher oddsGeneral populationMultimorbidityHealth outcomesHealth professionals
2013
Risk and protective factors for peer victimization: a 1-year follow-up study of urban American students
Karlsson E, Stickley A, Lindblad F, Schwab-Stone M, Ruchkin V. Risk and protective factors for peer victimization: a 1-year follow-up study of urban American students. European Child & Adolescent Psychiatry 2013, 23: 773-781. PMID: 24346176, DOI: 10.1007/s00787-013-0507-6.Peer-Reviewed Original Research
2008
Risk Factors for Violent Offending in Autism Spectrum Disorder
Långström N, Grann M, Ruchkin V, Sjöstedt G, Fazel S. Risk Factors for Violent Offending in Autism Spectrum Disorder. Journal Of Interpersonal Violence 2008, 24: 1358-1370. PMID: 18701743, DOI: 10.1177/0886260508322195.Peer-Reviewed Original Research