NCT07100535

Brief Summary

Health literacy is essential for children to develop healthy behaviors that persist into adulthood. It enables the access, understanding, evaluation, and application of health-related information, being a key component of health education. This study was designed as a randomized controlled study, aiming to analyze the effectiveness and feasibility of a school intervention to improve health literacy of 5th and 6th grade students on nutrition, physical activity, sleep, and mental health. Intervention will be delivered in two phases. Phase 1 will involve a pilot intervention comprising four sessions conducted over a three-month period in two schools representing distinct socioeconomic contexts. Phase 2 will scale the intervention nationally, expanding to include additional schools across Portugal. This phase will include eight sessions conducted over one entire school-year (September-June), and will integrate adjustments based on the limitations and insights identified during the pilot study. Phase 2 will additionally include 20-month follow-up assessments to be performed at the end of the following school-year (20-month).

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
128

participants targeted

Target at P50-P75 for not_applicable

Timeline
37mo left

Started Feb 2024

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress43%
Feb 2024May 2029

Study Start

First participant enrolled

February 3, 2024

Completed
1.4 years until next milestone

First Submitted

Initial submission to the registry

July 16, 2025

Completed
18 days until next milestone

First Posted

Study publicly available on registry

August 3, 2025

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2028

Expected
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2029

Last Updated

August 3, 2025

Status Verified

August 1, 2025

Enrollment Period

4.3 years

First QC Date

July 16, 2025

Last Update Submit

August 1, 2025

Conditions

Keywords

Health literacyNutritionPhysical activitySedentary behavioursSleepMental health

Outcome Measures

Primary Outcomes (1)

  • Overall health literacy score

    Overall health literacy score, assessed by the Questionnaire on Literacy in Health Behaviours for Children (QLCS-C), specifically developed for this study and adapted to the Portuguese educational and sociocultural context. This instrument is under validation and was designed to evaluate health literacy competences in children aged 9-12 years, encompassing four core health literacy dimensions: access, comprehension, evaluation and application, of health-related information. The instrument covers five critical domains of health promotion relevant to this age group: diet, PA, sedentary behaviour, sleep and mental health and includes a total of 47 items, scored 0-20 points/item, on a total of 0-100 points). The higher the score, the higher the Literacy level. Item development was based on an extensive review of validated instruments and international guidelines.

    Data will be assessed at baseline (before randomisation), at the end of the intervention (for Phase 1: 3-month; for Phase 2: end of the academic year, 8-month) and at follow-up (Phase 2-only: at the end of the following academic year, 20-month).

Secondary Outcomes (5)

  • Health Literacy on Nutrition

    Data will be assessed at baseline (before randomisation), at the end of the intervention (for Phase 1: 3-month; for Phase 2: end of the academic year, 8-month) and at follow-up (Phase 2-only: at the end of the following academic year, 20-month).

  • Health Literacy on Physical Activity

    Data will be assessed at baseline (before randomisation), at the end of the intervention (for Phase 1: 3-month; for Phase 2: end of the academic year, 8-month) and at follow-up (Phase 2-only: at the end of the following academic year, 20-month).

  • Health Literacy on Sedentary Behaviour

    Data will be assessed at baseline (before randomisation), at the end of the intervention (for Phase 1: 3-month; for Phase 2: end of the academic year, 8-month) and at follow-up (Phase 2-only: at the end of the following academic year, 20-month).

  • Health Literacy on Sleep

    Data will be assessed at baseline (before randomisation), at the end of the intervention (for Phase 1: 3-month; for Phase 2: end of the academic year, 8-month) and at follow-up (Phase 2-only: at the end of the following academic year, 20-month).

  • Health Literacy on Mental Health

    Data will be assessed at baseline (before randomisation), at the end of the intervention (for Phase 1: 3-month; for Phase 2: end of the academic year, 8-month) and at follow-up (Phase 2-only: at the end of the following academic year, 20-month).

Study Arms (2)

Education and Literacy for an Active Life

EXPERIMENTAL

Participants will be exposed to 50-minute sessions (only four sessions in Phase 1), targeting health literacy (across the four dimensions: access, comprehension, evaluation and application) on nutrition, sedentary behaviour, physical activity, sleep and mental health. Sessions will use interactive and student-centred methodologies, such as discussions, videos, practical activities, and group work, to promote participation and active learning. The intervention will be implemented uniformly across schools with the support of teachers. Activities will be adapted to the school context and age group to ensure feasibility and relevance.

Behavioral: Education and Literacy for an Active Life

Standard School Curriculum

NO INTERVENTION

Participants will not receive the health literacy intervention during the study period, receiving only standard school curriculum.

Interventions

This study will assess the effectiveness of a school-based health literacy intervention on the four dimensions of health literacy (i.e., access, understanding, evaluation, and application) on diet, sedentary behaviour, physical activity, sleep, and mental health in 5th and 6th graders (aged 9-12), and explored its implementation feasibility.

Also known as: Educação e Literacia para uma Vida Ativa
Education and Literacy for an Active Life

Eligibility Criteria

Age9 Years - 13 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Enrolled in the classes of the included schools
  • Agreed to participate
  • Informed consent/assent signature

You may not qualify if:

  • Severe cognitive or learning disabilities (significant impairment of the ability to engage with the intervention content or complete assessment tools)
  • Absenteeism (missing ≥30% of the scheduled sessions)
  • Concurrent participation in similar interventions (concurrent enrolment in other structured health, nutrition, or mental health programs that could confound study results)
  • Note: students with medical conditions that limit their ability to participate in physical activities will not be excluded. The presence of such conditions will be further considered in the analysis.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Universidade Lusófona - Centro Universitário Lisboa

Lisbon, Lisbon District, 1749-024, Portugal

Location

Related Publications (4)

  • Buysse DJ, Reynolds CF 3rd, Monk TH, Berman SR, Kupfer DJ. The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research. Psychiatry Res. 1989 May;28(2):193-213. doi: 10.1016/0165-1781(89)90047-4.

    PMID: 2748771BACKGROUND
  • Paruthi S, Brooks LJ, D'Ambrosio C, Hall WA, Kotagal S, Lloyd RM, Malow BA, Maski K, Nichols C, Quan SF, Rosen CL, Troester MM, Wise MS. Recommended Amount of Sleep for Pediatric Populations: A Consensus Statement of the American Academy of Sleep Medicine. J Clin Sleep Med. 2016 Jun 15;12(6):785-6. doi: 10.5664/jcsm.5866.

    PMID: 27250809BACKGROUND
  • Sirajudeen MS, Waly M, Manzar MD, Alqahtani M, Alzhrani M, Alanazi A, Unnikrishnan R, Muthusamy H, Saibannavar R, Alrubaia W. Physical activity questionnaire for older children (PAQ-C): Arabic translation, cross-cultural adaptation, and psychometric validation in school-aged children in Saudi Arabia. PeerJ. 2022 Apr 12;10:e13237. doi: 10.7717/peerj.13237. eCollection 2022.

    PMID: 35433134BACKGROUND
  • Hardy LL, Booth ML, Okely AD. The reliability of the Adolescent Sedentary Activity Questionnaire (ASAQ). Prev Med. 2007 Jul;45(1):71-4. doi: 10.1016/j.ypmed.2007.03.014. Epub 2007 Apr 14.

    PMID: 17532371BACKGROUND

MeSH Terms

Conditions

Motor ActivitySedentary BehaviorPsychological Well-Being

Interventions

Educational Status

Condition Hierarchy (Ancestors)

BehaviorPersonal Satisfaction

Intervention Hierarchy (Ancestors)

Socioeconomic FactorsPopulation Characteristics

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Phase 1. Open label. Intervention and assessments will be performed by the core researchers. Phase 2. Intervention will be applied by trained professors (not part of the research team). Assessors will be blinded to group allocation.
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

July 16, 2025

First Posted

August 3, 2025

Study Start

February 3, 2024

Primary Completion (Estimated)

June 1, 2028

Study Completion (Estimated)

May 1, 2029

Last Updated

August 3, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will share
Shared Documents
STUDY PROTOCOL, SAP

Locations