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
2019
Risk Factors Associated with Alcohol Use in Early Adolescence among American Inner-City Youth: A Longitudinal Study
Isaksson J, Sjöblom S, Schwab-Stone M, Stickley A, Ruchkin V. Risk Factors Associated with Alcohol Use in Early Adolescence among American Inner-City Youth: A Longitudinal Study. Substance Use & Misuse 2019, 55: 358-366. PMID: 31686574, DOI: 10.1080/10826084.2019.1671867.Peer-Reviewed Original ResearchRisk and Protective Factors for Problematic Drinking in Early Adolescence: A Systematic Approach
Isaksson J, Schwab-Stone M, Stickley A, Ruchkin V. Risk and Protective Factors for Problematic Drinking in Early Adolescence: A Systematic Approach. Child Psychiatry & Human Development 2019, 51: 231-238. PMID: 31468271, PMCID: PMC7067730, DOI: 10.1007/s10578-019-00925-1.Peer-Reviewed Original ResearchConceptsAlcohol-related problemsInterpersonal factorsEarly adolescenceSubsequent alcohol-related problemsSixth gradeAlcohol useProspective research programSixth-grade studentsConduct problemsDelinquent peersExternalizing symptomsProblematic drinkingMarker of riskIndividual risk factorsFuture health problemsDecreased perceptionSeventh gradeContextual factorsSelf-reported informationProtective factorsRisk factorsDepressive symptomsWhite ethnicityHealth problemsAdolescence
2017
Sources of Heterogeneity in Developmental Outcomes of Children With Past and Current Experiences of Institutionalization in Russia: A Four-Group Comparison
Rakhlin N, Hein S, Doyle N, Hart L, Koposov R, Macomber D, Ruchkin V, Strelina A, Tan M, Grigorenko EL. Sources of Heterogeneity in Developmental Outcomes of Children With Past and Current Experiences of Institutionalization in Russia: A Four-Group Comparison. American Journal Of Orthopsychiatry 2017, 87: 242-255. PMID: 27078048, DOI: 10.1037/ort0000146.Peer-Reviewed Original Research
2015
Language development of internationally adopted children: Adverse early experiences outweigh the age of acquisition effect
Rakhlin N, Hein S, Doyle N, Hart L, Macomber D, Ruchkin V, Tan M, Grigorenko EL. Language development of internationally adopted children: Adverse early experiences outweigh the age of acquisition effect. Journal Of Communication Disorders 2015, 57: 66-80. PMID: 26385197, DOI: 10.1016/j.jcomdis.2015.08.003.Peer-Reviewed Original ResearchConceptsLength of institutionalizationAdverse early experiencesBiological familiesAge expectationsChild outcomesReceptive language measuresNon-verbal IQNon-adopted peersEarly literacy developmentReceptive vocabularyLanguage measuresSecond time pointCognitive skillsEarly experienceLanguage outcomesAcquisition effectsLanguage acquisitionLanguage developmentMore outcome measuresChildren's capacityPotential primacyFirst languageAdoptive familiesAdoptive languageStandardized measuresCorrelates of Weapon Carrying in School among Adolescents in Three Countries
Stickley A, Koyanagi A, Koposov R, Blatný M, Hrdlička M, Schwab-Stone M, Ruchkin V. Correlates of Weapon Carrying in School among Adolescents in Three Countries. American Journal Of Health Behavior 2015, 39: 99-108. PMID: 25290602, DOI: 10.5993/ajhb.39.1.11.Peer-Reviewed Original Research
2014
Community violence exposure and severe posttraumatic stress in suburban American youth: risk and protective factors
Löfving–Gupta S, Lindblad F, Stickley A, Schwab-Stone M, Ruchkin V. Community violence exposure and severe posttraumatic stress in suburban American youth: risk and protective factors. Social Psychiatry And Psychiatric Epidemiology 2014, 50: 539-547. PMID: 25301519, DOI: 10.1007/s00127-014-0965-2.Peer-Reviewed Original ResearchConceptsSevere posttraumatic stressCommunity violence exposureViolence exposureDepressive symptomsPosttraumatic stressCommunity violenceComorbid depressive symptomsProtective effectProtective factorsSubstantial proportionHealth assessment studiesHigh levelsNeighborhood safetySymptomsPrevalenceNorth American settingHigh school adolescentsExposureSubstantial numberPotential factorsPsychological effectsLow levelsAmerican youthExternalizing problemsDetrimental effects
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 ResearchA Longitudinal Study of Somatic Complaints in Urban Adolescents: The Role of Internalizing Psychopathology and Somatic Anxiety
Ruchkin V, Schwab-Stone M. A Longitudinal Study of Somatic Complaints in Urban Adolescents: The Role of Internalizing Psychopathology and Somatic Anxiety. Journal Of Youth And Adolescence 2013, 43: 834-845. PMID: 23744452, DOI: 10.1007/s10964-013-9966-9.Peer-Reviewed Original ResearchConceptsSomatic anxietyInternalizing psychopathologySomatic complaintsPersistent somatic complaintsUrban adolescentsTreatment of youthSelf-report surveyInternalizing symptomsCommunity sampleSomatic sensationsAnxietyPsychopathologyLongitudinal studyUrban youthAdolescentsPredictive roleYouthSignificant continuityHigh levelsSomatizationHealth assessmentSocialFrequent associationGirlsBoys
2012
Binge drinking among adolescents in Russia: Prevalence, risk and protective factors
Stickley A, Koyanagi A, Koposov R, McKee M, Roberts B, Murphy A, Ruchkin V. Binge drinking among adolescents in Russia: Prevalence, risk and protective factors. Addictive Behaviors 2012, 38: 1988-1995. PMID: 23384452, DOI: 10.1016/j.addbeh.2012.12.009.Peer-Reviewed Original ResearchConceptsAdolescent binge drinkingBinge drinkingProtective factorsRisk of bingeAdolescent bingeParental warmthFamily environmentDeviant behaviorMarijuana useBingeAlcohol misuseAvailability of alcoholAdolescentsRisk behaviorsDifferent domainsBroader social policyModerate levelsGirlsDrinkingWarmthDetrimental effectsPeersAlcohol environmentRiskSocialCross-Cultural Findings on Community Violence Exposure and Internalizing Psychopathology: Comparing Adolescents in the United States, Russia, and Belgium
Schwab-Stone M, Koposov R, Vermeiren R, Ruchkin V. Cross-Cultural Findings on Community Violence Exposure and Internalizing Psychopathology: Comparing Adolescents in the United States, Russia, and Belgium. Child Psychiatry & Human Development 2012, 44: 516-524. PMID: 23129249, DOI: 10.1007/s10578-012-0344-8.Peer-Reviewed Original ResearchConceptsCommunity violenceViolence exposureCommunity violence exposureCross-cultural differencesViolenceCross-cultural findingsUrban communitiesMore victimizationUnited StatesRussiaAntisocial behaviorComparing AdolescentsCountriesRepresentative sampleSelf-report surveyBelgiumVictimizationSimilar dynamicsMental healthAdolescent mental healthCommunityGenderYear old adolescentsImplicationsFindings
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 periodSchizophreniaAdmissionMonthsVariation in the catechol-O-methyltransferase Val158Met polymorphism associated with conduct disorder and ADHD symptoms, among adolescent male delinquents
DeYoung CG, Getchell M, Koposov RA, Yrigollen CM, Haeffel GJ, Klinteberg B, Oreland L, Ruchkin VV, Pakstis AJ, Grigorenko EL. Variation in the catechol-O-methyltransferase Val158Met polymorphism associated with conduct disorder and ADHD symptoms, among adolescent male delinquents. Psychiatric Genetics 2010, 20: 20-24. PMID: 19997043, PMCID: PMC2895253, DOI: 10.1097/ypg.0b013e32833511e4.Peer-Reviewed Original ResearchConceptsAttention-deficit/hyperactivity disorderCatechol-O-methyltransferase (COMT) geneConduct disorderADHD symptomsHigh-risk populationCatechol-O-methyltransferase (COMT) Val158Met polymorphismCOMT geneDeficit/hyperactivity disorderConduct disorder diagnosisBehavior problemsSymptomsVal alleleMet alleleDisorder diagnosisHyperactivity disorderVal158Met polymorphismDisordersAntisocial behavior
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 ResearchAdolescents in Transition: School and Family Characteristics in the Development of Violent Behaviors Entering High School
Frey A, Ruchkin V, Martin A, Schwab-Stone M. Adolescents in Transition: School and Family Characteristics in the Development of Violent Behaviors Entering High School. Child Psychiatry & Human Development 2008, 40: 1-13. PMID: 18574687, DOI: 10.1007/s10578-008-0105-x.Peer-Reviewed Original ResearchConceptsSchool attachmentAcademic motivationParental controlAggressive beliefsTeacher supportSchool climateViolence exposureViolent delinquencyInner-city adolescentsPredictors of engagementHigh schoolNegative behaviorsProblematic behaviorsNegative outcomesCommunity violencePositive perceptionsSchool factorsFamily characteristicsNegative perceptionsAdolescentsPerceptionFamily involvementMotivationHealth assessment surveyViolent behaviorAssociation Between Polymorphisms in the Dopamine Transporter Gene and Depression
Haeffel GJ, Getchell M, Koposov RA, Yrigollen CM, De Young C, Klinteberg BA, Oreland L, Ruchkin VV, Grigorenko EL. Association Between Polymorphisms in the Dopamine Transporter Gene and Depression. Psychological Science 2008, 19: 62-69. PMID: 18181793, DOI: 10.1111/j.1467-9280.2008.02047.x.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentChromosomes, Human, Pair 5Depressive DisorderDopamine Plasma Membrane Transport ProteinsGene ExpressionGenetic Predisposition to DiseaseHumansJuvenile DelinquencyMaleMother-Child RelationsOdds RatioPolymorphism, Single NucleotidePrisonersRejection, PsychologyRisk FactorsSocial EnvironmentStatistics as TopicConceptsFirst-onset episodeMajor depressive disorderDopamine transporter geneDepressive disorderSignificant anxietySuicidal ideationDepressionMaternal rejectionMale adolescentsJuvenile detention centerTransporter geneDopaminergic genesPolymorphismFurther researchMaternal parenting styleGenesEnvironmental factors
2005
Suicidal behaviour in adolescents: Associations with parental marital status and perceived parent–adolescent relationship
Ponnet K, Vermeiren R, Jespers I, Mussche B, Ruchkin V, Schwab-Stone M, Deboutte D. Suicidal behaviour in adolescents: Associations with parental marital status and perceived parent–adolescent relationship. Journal Of Affective Disorders 2005, 89: 107-113. PMID: 16256205, DOI: 10.1016/j.jad.2005.08.014.Peer-Reviewed Original ResearchConceptsParent-adolescent relationshipSelf-harm behaviorsParental marital statusSingle-parent familiesRemarried familiesParent familiesMore suicidal ideationSuicidal behaviorAdolescent suicidal behaviorSchool-based sampleRepresentative school-based sampleSelf-report surveySuicidal ideationRole of genderIntact familiesCross-sectional designAdolescent suicidalityMarital statusEquivocal findingsAdolescentsExternal informationFamily structureIdeationParentsSuicidalityAlcohol 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 behaviorConclusionAlcoholResultsAlcoholEarly to Bed: A Study of Adaptation Among Sexually Active Urban Adolescent Girls Younger Than Age Sixteen
MARTIN A, RUCHKIN V, CAMINIS A, VERMEIREN R, HENRICH CC, SCHWAB-STONE M. Early to Bed: A Study of Adaptation Among Sexually Active Urban Adolescent Girls Younger Than Age Sixteen. Journal Of The American Academy Of Child & Adolescent Psychiatry 2005, 44: 358-367. PMID: 15782083, DOI: 10.1097/01.chi.0000153226.26850.fd.Peer-Reviewed Original ResearchConceptsUrban adolescent girlsPsychosocial adaptationSexual activityAdolescent girlsActive urban adolescent girlsActive adolescent girlsPrior sexual intercourseLower school gradesBlack ethnicityHigh riskMultivariate analysisTeenage pregnancyActive girlsSexual intercourseSocioeconomic statusVulnerable populationsSelf-report surveyHealth assessmentGlobal measuresLower scoresGirlsGradeNew Haven
2003
The Protective Effects of Religiousness and Parent Involvement on the Development of Conduct Problems Among Youth Exposed to Violence
Pearce M, Jones S, Schwab‐stone M, Ruchkin V. The Protective Effects of Religiousness and Parent Involvement on the Development of Conduct Problems Among Youth Exposed to Violence. Child Development 2003, 74: 1682-1696. PMID: 14669889, DOI: 10.1046/j.1467-8624.2003.00631.x.Peer-Reviewed Original Research