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Table 5 Summary of the main information collected in the Kupol study at baseline and follow-up

From: School environment and mental health in early adolescence - a longitudinal study in Sweden (KUPOL)

Information

Source

Instrument

School infrastructure and organization

School principal

Paper questionnaire

School pedagogic and social climate

Teachers and students attending the last year of the compulsory school

Paper and/or web-based questionnaire

Classroom composition and teaching style

Teachers in math, Swedish and English

Paper questionnaire

Family demographics (parental education, employment, geographic origin)

Parents/guardians

Paper questionnaire

Parents’ socioeconomic factors (education, income, occupation, sickness and disability benefits)

LISA register

Record linkage

Parents’ perceived own health, tobacco and alcohol use

Parents/guardians

Paper questionnaire

Parents’ social capital

Parents/guardians

Paper questionnaire

Parents’ relation to the index child

Parents/guardians

Paper questionnaire

Parents’ expectations on index child’s academic achievements

Parents/guardians

Paper questionnaire

Child’s peri-natal events and anthropometric characteristics

Medical Birth Register

Record linkage

Child’s mental health (SDQ)

Parents/guardians and index child

Paper questionnaire

Child’s mental health (CES-DC)

Index child

Paper questionnaire

Child’s psychiatric diagnoses

Inpatient and outpatient registers

Record linkage

Child’s pharmacologic treatments

Swedish Prescribed Drug Register

Record linkage

Substance use

Index child

Paper questionnaire

Perceived general health

Index child

Paper questionnaire

Relation to parents

Index child

Paper questionnaire

Relation to school and academic expectations

Index child

Paper questionnaire

School absenteeism

School registers

Record linkage

Relation to peers

Index child

Paper questionnaire

Experience of bullying

Index child

Paper questionnaire