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 pairsLongitudinal Associations Between Community Violence Exposure and Mental Health Problems in Inner-City Youth: Ethnicity and Gender Perspectives
Ruchkin V, Isaksson J, Stickley A, Schwab-Stone M. Longitudinal Associations Between Community Violence Exposure and Mental Health Problems in Inner-City Youth: Ethnicity and Gender Perspectives. Journal Of Interpersonal Violence 2023, 38: 8619-8644. PMID: 36915222, PMCID: PMC10326367, DOI: 10.1177/08862605231158754.Peer-Reviewed Original ResearchConceptsMental health problemsCommunity violence exposureHealth problemsLongitudinal associationsViolence exposureDegree of severityYear 1Self-reported informationYear 2Ethnic groupsGender-specific responsesEthnic backgroundSocio-economic statusEarly preventionMultivariate analysisTimely recognitionTraumatic exposureDifferent ethnic backgroundsIntervention strategiesInner-city youthSimilar degreePosttraumatic stressExposureSimilar fashionRepresentative sample
2022
Posttraumatic Stress and Perceived Interpersonal Provocation in Adolescents
Saunderson JM, Stickley A, Sturidsson K, Koposov R, Sukhodolsky DG, Ruchkin V. Posttraumatic Stress and Perceived Interpersonal Provocation in Adolescents. Journal Of Interpersonal Violence 2022, 38: 3191-3214. PMID: 35613735, PMCID: PMC9850389, DOI: 10.1177/08862605221104525.Peer-Reviewed Original ResearchConceptsPosttraumatic stress symptomsPosttraumatic stressStress symptomsProvocation scenariosPosttraumatic symptomsAggressive responsesPhysical aggressionAttribution of intentionalityInterpersonal provocationPeer provocationHostile intentionsChoice of responseAggressive reactionsAdolescent boysAggressive situationsConflict situationsOpposite patternHigh levelsAdolescentsAggressive behaviorAggressionGirlsDaily lifeBoysDifferent patternsNonshared 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
2021
Community Violence Exposure and School Functioning in Youth: Cross-Country and Gender Perspectives
Koposov R, Isaksson J, Vermeiren R, Schwab-Stone M, Stickley A, Ruchkin V. Community Violence Exposure and School Functioning in Youth: Cross-Country and Gender Perspectives. Frontiers In Public Health 2021, 9: 692402. PMID: 34386472, PMCID: PMC8353073, DOI: 10.3389/fpubh.2021.692402.Peer-Reviewed Original ResearchConceptsSchool functioningCommunity violence exposureTeacher Support ScaleClassroom Environment ScaleViolence exposureCommunity violenceSchool ScaleViolent eventsAcademic motivationSchool studentsSchoolsSelf-report surveyCross-country differencesProblem behaviorEnvironment ScaleRole of genderSocial support systemsStudentsPerceptions of safetyGender perspectiveYouthViolenceSupport ScaleGender differencesSample of youth
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 problemsAdolescenceAttention-Deficit/Hyperactivity Disorder Symptoms and Community Violence Exposure in Russian Adolescents
Stickley A, Koposov R, Koyanagi A, Oh H, Ruchkin V. Attention-Deficit/Hyperactivity Disorder Symptoms and Community Violence Exposure in Russian Adolescents. Journal Of Interpersonal Violence 2019, 36: np9738-np9756. PMID: 31288607, DOI: 10.1177/0886260519861651.Peer-Reviewed Original ResearchConceptsCommunity violence exposureAttention-deficit/hyperactivity disorder (ADHD) symptomsHyperactivity disorder symptomsADHD symptomsDisorder symptomsViolence exposureHigher ADHD symptomsADHD groupADHD boysADHD statusInattention scalePsychological outcomesRole of genderPeer relationsRussian adolescentsComorbid psychopathologyDifficulties QuestionnaireCommunity violenceDevelopmental disordersAdolescentsFuture researchViolence victimizationVictimizationChildrenWitnessingAttention deficit/hyperactivity disorder and future expectations in Russian adolescents
Stickley A, Koposov R, Kamio Y, Takahashi H, Koyanagi A, Inoue Y, Yazawa A, Ruchkin V. Attention deficit/hyperactivity disorder and future expectations in Russian adolescents. ADHD Attention Deficit And Hyperactivity Disorders 2019, 11: 279-287. PMID: 30852726, DOI: 10.1007/s12402-019-00292-w.Peer-Reviewed Original ResearchConceptsAttention-deficit/hyperactivity disorderDeficit/hyperactivity disorderNegative future expectationsADHD statusHyperactivity disorderRussian adolescentsTeacher-reported ADHD symptomsFuture expectationsDifferent life domainsSchool-based sampleADHD symptomsRisky health behaviorsEducational expectationsLife domainsAdolescentsFuture outcomesCurrent studyAdolescenceHealth behaviorsExpectationsDisordersRegression analysisResearch gapResearch
2018
The danger of being inattentive – ADHD symptoms and risky sexual behaviour in Russian adolescents
Isaksson J, Stickley A, Koposov R, Ruchkin V. The danger of being inattentive – ADHD symptoms and risky sexual behaviour in Russian adolescents. European Psychiatry 2018, 47: 42-48. PMID: 29100171, DOI: 10.1016/j.eurpsy.2017.09.004.Peer-Reviewed Original ResearchConceptsHyperactivity/impulsivity symptomsConduct problemsRussian adolescentsRisky sexual behaviorImpulsivity symptomsADHD symptomsAttention-deficit/hyperactivity disorder (ADHD) symptomsSubstance useHyperactivity/impulsivityHyperactivity disorder symptomsDifferent parenting stylesInattention symptomsParenting stylesDisorder symptomsTeacher ratingsPerception of riskSexual behaviorBinge drinkingAdolescentsPrior researchRisk perceptionOrganizing behaviorInattentionDetrimental outcomesCohort sample
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
2016
Unseen and Stressed? Gender Differences in Parent and Teacher Ratings of ADHD Symptoms and Associations With Perceived Stress in Children With ADHD
Isaksson J, Ruchkin V, Lindblad F. Unseen and Stressed? Gender Differences in Parent and Teacher Ratings of ADHD Symptoms and Associations With Perceived Stress in Children With ADHD. Journal Of Attention Disorders 2016, 24: 1565-1569. PMID: 27401240, DOI: 10.1177/1087054716658381.Peer-Reviewed Original ResearchConceptsTeacher ratingsADHD Symptoms Rating ScaleTeacher ADHD ratingsLower teacher ratingsPerception of stressADHD problemsADHD symptomsADHD ratingsHyperactivity symptomsSchool settingsParental ratingsPotential gender biasPerceived stressStress ScaleADHDTeachersSymptom Rating ScaleGender differencesRatingsSymptom ScaleParentsChildrenSense of pressureRating ScaleGender bias
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 measures
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 environmentRiskSocial
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 People
2007
Developmental Pathway Modeling in Considering Behavior Problems in Young Russian Children
Ruchkin V, Gilliam WS, Mayes L. Developmental Pathway Modeling in Considering Behavior Problems in Young Russian Children. Child Psychiatry & Human Development 2007, 39: 49-66. PMID: 17619143, DOI: 10.1007/s10578-007-0070-9.Peer-Reviewed Original ResearchConceptsRisk factorsEarly risk factorsChild mental health problemsMaternal psychological problemsAdverse risk factorsSpecific risk factorsMental health problemsBehavior problemsHealth problemsAlcohol usePrevention effortsMaternal reportsChild behavior problemsPostnatal conditionsEarly childhoodFamily dysfunctionDevelopment of internalizingDevelopmental riskPsychological problemsCommunity sampleChildrenExternalizing behavior problemsPlanning interventionsInterventionGood model fit
2006
The mediating role of alienation in the development of maladjustment in youth exposed to community violence
O'DONNELL D, SCHWAB-STONE M, RUCHKIN V. The mediating role of alienation in the development of maladjustment in youth exposed to community violence. Development And Psychopathology 2006, 18: 215-232. PMID: 16478560, DOI: 10.1017/s0954579406060123.Peer-Reviewed Original ResearchConceptsViolence exposureCommunity violenceDevelopment of maladjustmentCommunity violence exposureDelinquent behaviorViolent victimizationViolence victimizationViolenceRole of alienationVictimizationNormlessnessDistinct dimensionsYouthSignificant predictorsAlienationMediational factorsExposureDifferent formsDistinct patternsPredictors
2004
Juvenile arrest: a cross‐cultural comparison
Vermeiren R, Jones S, Ruchkin V, Deboutte D, Schwab‐Stone M. Juvenile arrest: a cross‐cultural comparison. Journal Of Child Psychology And Psychiatry 2004, 45: 567-576. PMID: 15055375, DOI: 10.1111/j.1469-7610.2004.00246.x.Peer-Reviewed Original ResearchSubtypes of self‐esteem and self‐concept in adolescent violent and property offenders
Vermeiren R, Bogaerts J, Ruchkin V, Deboutte D, Schwab‐Stone M. Subtypes of self‐esteem and self‐concept in adolescent violent and property offenders. Journal Of Child Psychology And Psychiatry 2004, 45: 405-411. PMID: 14982253, DOI: 10.1111/j.1469-7610.2004.00231.x.Peer-Reviewed Original ResearchConceptsViolent offendingLower academic competenceSelf-report surveyPeer popularityAntisocial adolescentsAcademic competenceAntisocial behaviorFamily acceptanceFuture researchOffendingAdolescentsScientific consequencesProperty offendersOffendersFindingsCompetenceSuch differentiationStudentsConsequencesRepresentative groupThe psychosocial aspects of children exposed to war: practice and policy initiatives
Barenbaum J, Ruchkin V, Schwab‐Stone M. The psychosocial aspects of children exposed to war: practice and policy initiatives. Journal Of Child Psychology And Psychiatry 2004, 45: 41-62. PMID: 14959802, DOI: 10.1046/j.0021-9630.2003.00304.x.Peer-Reviewed Original Research