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Completed

NCT Number: NCT03297970

Bogota School Children Cohort

This observational study investigates the associations of nutritional indicators, biomarkers, sociodemographic conditions, and infections with child health, as well as physical, behavioral, and cognitive development. Investigators recruited a random sample of 3202 children from primary public schools in Bogota, Colombia in February 2006 and followed them for a median of 6.5 years. Investigators hypothesized that poor nutritional status at the time of recruitment in middle childhood would be related to adverse health outcomes through adolescence.

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Key information

Conditions

Nutrition Behavior Problem Child Growth Child Health Infectious Morbidity Mental Disorders Neurocognitive Development Sexual Maturation

Age range

5 year–12 year

Sex eligibility

All sexes

Study type

Observational

Primary location

FINUSAD - Foundation for Research in Nutrition and Health, Bogotá, Colombia

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Who can participate

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Primary public school enrollment in February 2006

Exclusion criteria

  • None

Treatment and study plan

Primary outcomes

  1. Externalizing behavior problems

    Time frame: Assessed at one point in time when the children were 11-18 years old.

    Adolescent behavior problems were ascertained with the Youth Self Report (YSR) questionnaire. The YSR is a self-administered questionnaire consisting of 112 statements addressing behaviors or feelings that adolescents rate as false, sometimes true, or very/often true. From responses to these questions, an Assessment Data Manager (ADM) software calculates continuous scores for aggressive behavior and rule breaking behavior. The sum of the aggressive and rule breaking behavior subscale scores constitute the total externalizing problems score.

  2. Internalizing behavior problems

    Time frame: Assessed at one point in time when the children were 11-18 years old.

    Adolescent behavior problems were ascertained with the Youth Self Report (YSR) questionnaire. The sum of the anxious/depressed, withdrawn/depressed, and somatic complaint subscale scores constitute the total internalizing problems score.

Secondary outcomes

  1. Behavior problem subscale scores (aggressive behavior, rule breaking behavior, anxious/depressed, withdrawn/depressed, somatic complaints, attention problems, social problems, and thought problems)

    Time frame: Assessed at one point in time when the children were 11-18 years old.

    Adolescent behavior problems were ascertained with the Youth Self Report (YSR) questionnaire.

Other outcomes

  1. Body mass index change

    Time frame: Median 6.5 years from recruitment

    Change in body mass index for age Z-score from baseline to the last follow-up visit

  2. Linear growth

    Time frame: Median 6.5 years from recruitment

    Change in height for age Z-score from baseline to the last follow-up visit

  3. Age at menarche

    Time frame: Median 6.5 years from recruitment

    Reported age at first menstrual period

  4. Grade repetition

    Time frame: 5 years

    Outcome of school grades between 2006-2011

  5. Blood pressure

    Time frame: Median 6.5 years from recruitment

Sponsors and collaborators

Lead sponsor

University of Michigan

Other

Collaborators

  • Foundation for Research in Nutrition and Health (FINUSAD)
  • Universidad de la Sabana

Registry information

Acronym: BoSCCo

Important dates

Study start
2006
Primary completion
2015
Study completion
2015
First posted
Sep 29, 2017
Registry last updated
Sep 29, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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