2023
Psychological distress and voting behaviour in nine countries of the former Soviet Union
Stickley A, Sumiyoshi T, Kondo N, Leinsalu M, Inoue Y, Ruchkin V, Shin J, McKee M. Psychological distress and voting behaviour in nine countries of the former Soviet Union. Scientific Reports 2023, 13: 22709. PMID: 38123608, PMCID: PMC10733372, DOI: 10.1038/s41598-023-49071-8.Peer-Reviewed Original ResearchEvaluation 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
2010
Homicide in discharged patients with schizophrenia and other psychoses: A national case-control study
Fazel S, Buxrud P, Ruchkin V, Grann M. Homicide in discharged patients with schizophrenia and other psychoses: A national case-control study. Schizophrenia Research 2010, 123: 263-269. PMID: 20805021, DOI: 10.1016/j.schres.2010.08.019.Peer-Reviewed Original ResearchMeSH KeywordsAdultCase-Control StudiesDepressionDiagnostic and Statistical Manual of Mental DisordersFemaleHomicideHumansMedication AdherenceMiddle AgedPatient DischargePsychotic DisordersReproducibility of ResultsRisk FactorsSchizophreniaSchizophrenic PsychologySelf CareSubstance-Related DisordersSwedenViolenceConceptsSubstance misuseNational case-control studyEvidence of medicationMonths of dischargeCase-control studySevere mental illnessPresence of delusionsHospital dischargeClinical factorsInpatient characteristicsTreatment complianceTreatable factorsCare factorsMedical recordsUnivariate analysisViolence risk assessmentClinical utilityTherapeutic interventionsMental illnessPatientsPsychosisSame time periodSchizophreniaAdmissionMonths
2008
Antisocial process screening device: Validation on a Russian sample of juvenile delinquents with the emphasis on the role of personality and parental rearing
Fritz M, Ruchkin V, Koposov R, Klinteberg B. Antisocial process screening device: Validation on a Russian sample of juvenile delinquents with the emphasis on the role of personality and parental rearing. International Journal Of Law And Psychiatry 2008, 31: 438-446. PMID: 18790536, DOI: 10.1016/j.ijlp.2008.08.003.Peer-Reviewed Original ResearchAdolescentAdultAntisocial Personality DisorderChildChild Behavior DisordersChild RearingComorbidityFactor Analysis, StatisticalFemaleHumansJuvenile DelinquencyMaleMass ScreeningMemoryParentingPersonality AssessmentPersonality InventoryPsychiatric Status Rating ScalesReproducibility of ResultsRussiaSurveys and QuestionnairesViolenceWhite PeopleRisk 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 ResearchPsychopathy and violence in juvenile delinquents: What are the associated factors?
Fritz M, Wiklund G, Koposov R, Klinteberg B, Ruchkin V. Psychopathy and violence in juvenile delinquents: What are the associated factors? International Journal Of Law And Psychiatry 2008, 31: 272-279. PMID: 18502509, DOI: 10.1016/j.ijlp.2008.04.010.Peer-Reviewed Original Research
2005
Alcohol abuse in Russian delinquent adolescents
Koposov R, Ruchkin V, Eisemann M, Sidorov P. Alcohol abuse in Russian delinquent adolescents. European Child & Adolescent Psychiatry 2005, 14: 254-261. PMID: 15981137, DOI: 10.1007/s00787-005-0463-x.Peer-Reviewed Original ResearchConceptsAlcohol abuseComorbid psychopathologySpecific risk groupsLogistic regression analysisRisk groupsHigh-risk youthPsychiatric interviewGeneral populationPsychiatric disordersPsychiatric problemsAlcohol misuseEarly interventionAlcohol useRegression analysisPsychopathologyMaternal emotional warmthAbuseSpecific personality factorsWide spectrumHigh levelsParenting factorsFactorsAntisocial behaviorConclusionAlcoholResultsAlcoholAlcohol Expectancies in Relation to Personality and Aggression among Juvenile Delinquents in Northern Russia
Koposov R, Ruchkin V, Eisemann M, Sidorov P. Alcohol Expectancies in Relation to Personality and Aggression among Juvenile Delinquents in Northern Russia. Journal Of Drug Education 2005, 35: 111-130. PMID: 16312109, DOI: 10.2190/e28e-e6m3-cl21-jrf0.Peer-Reviewed Original Research
2003
Sense of Coherence
Koposov R, Ruchkin V, Eisemann M. Sense of Coherence. The Journal Of Nervous And Mental Disease 2003, 191: 638-644. PMID: 14555865, DOI: 10.1097/01.nmd.0000092196.48697.9d.Peer-Reviewed Original Research
2002
Violence Exposure, Posttraumatic Stress, and Personality in Juvenile Delinquents
RUCHKIN VV, SCHWAB-STONE M, KOPOSOV R, VERMEIREN R, STEINER H. Violence Exposure, Posttraumatic Stress, and Personality in Juvenile Delinquents. Journal Of The American Academy Of Child & Adolescent Psychiatry 2002, 41: 322-329. PMID: 11886027, DOI: 10.1097/00004583-200203000-00012.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderPosttraumatic stressViolence exposureJuvenile delinquentsComorbid psychopathologyPersonality traitsFull posttraumatic stress disorderPartial posttraumatic stress disorderPTSD symptom scoresMale juvenile delinquentsFull DSM-IV criteriaViolence-related experiencesStress disorderPTSD criteriaBehavior activationRussian juvenile delinquentsDelinquent youthPoor copingBehavior inhibitionIndividual perceptionsDSM-IV criteriaPsychopathologyMost delinquentsDelinquentsAmerican samplePredicting recidivism in delinquent adolescents from psychological and psychiatric assessment
Vermeiren R, Schwab-Stone M, Ruchkin V, De Clippele A, Deboutte D. Predicting recidivism in delinquent adolescents from psychological and psychiatric assessment. Comprehensive Psychiatry 2002, 43: 142-149. PMID: 11893993, DOI: 10.1053/comp.2002.30809.Peer-Reviewed Original ResearchConceptsDelinquent adolescentsPsychological assessmentLower verbal IQStandard intelligence testsPredictors of recidivismMale juvenile delinquentsDevelopment of preventionVerbal IQIntellectual functioningIntelligence testsPsychological characteristicsConduct disorderJuvenile delinquentsFuture offendingRecidivismAdolescentsFuture researchSemistructured interviewsCurrent studyDelinquentsPsychiatric disordersSpecific aspectsPsychiatric assessmentPsychiatric diagnosisLong-term relationships
2000
Assessment of dysfunctional working models of self and others in schizophrenic patients: a summary of data collected in nine nations
Perris C, Frank N, Gusmao R, Henry L, Lundberg M, Schaub A, Simos G, Richter J, Rognoni R, Ruchkin V, Valls J, Group* I. Assessment of dysfunctional working models of self and others in schizophrenic patients: a summary of data collected in nine nations. Acta Psychiatrica Scandinavica 2000, 102: 336-341. PMID: 11098804, DOI: 10.1034/j.1600-0447.2000.102005336.x.Peer-Reviewed Original ResearchConceptsSchizophrenic patientsDysfunctional working modelsDuration of illnessNon-psychotic patientsTypes of patientsLevels of psychopathologyPatientsTreatment programCurrent psychopathologyPsychotherapeutic interventionsSelf-report instrumentNon-clinical subjectsSignificant correlationAlpha coefficientPsychopathologySummary of dataCase conceptualizationIllness