A Multi-component Intervention on Improving Fruit and Vegetable Consumption in Teenagers and Their Mothers

This study is a longitudinal controlled trial that is designed to investigate the effectiveness of a multi-component intervention on improving fruit and vegetable consumption in teenagers and their mothers.

Study Overview

• Status: Completed
• Conditions: Nutrition
• Intervention / Treatment: Behavioral: primary eduction; Behavioral: behavioral

Detailed Description

This study is a longitudinal controlled trial that is designed to investigate the effectiveness of a multi-component intervention on improving fruit and vegetable consumption in teenagers and their mothers. Participants will be allocated in three groups with a) an intervention group in which mothers and children receive the intervention and questionnaires, b) only the children receive the intervention and mothers and children receive the questionnaires, and c) mothers and children are in active control group and only receive the questionnaires. The intervention package contains behavior change techniques targeting outcome expectancy, self-efficacy, action planning, coping planning, and self-monitoring. The active control group receives an information sheet regarding recommendations on fruit and vegetable intake. There will be 3 assessment points in time, with 1 months in between. All the intervention materials and information sheets will be handed to participants after the baseline assessment. The self-monitoring calendar will be collected at time 2 assessment.

The primary outcome of this study is to estimate the dyadic mechanisms between mothers and their children regarding improving fruit and vegetable intake. Secondary outcome is to investigate whether fruit and vegetable consumption did improve in the intervention groups in general and also to find the psychological mechanism behind the changes during the time of the study.

• Study Type: Interventional
• Enrollment (Actual): 1500
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Iran, Islamic Republic of
  • Qazvin, Iran, Islamic Republic of
    • The Organization for Education
  • Qazvin, Iran, Islamic Republic of, 3419759811
    • Department of Public Health, Qazvin University of Medical Sciences

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• They are not involved in the nutritional education
• Ability to understand Persian language Adolescents attending high schools in Qazvin

Exclusion Criteria:

• Does not meet inclusion criteria

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: active control; mothers and children are in active control group and only receive the questionnaires	Behavioral: primary eduction; The intervention package contains behavior change techniques targeting outcome expectancy, self-efficacy, action planning, coping planning, and self-monitoring. The active control group receives an information sheet regarding recommendations on fruit and vegetable intake. There will be 3 assessment points in time, with 1 1 month and six months in between. All the intervention materials and information sheets will be handed to participants after the baseline assessment. The self-monitoring calendar will be collected at time 2 assessment.
Experimental: mother and student; an intervention group in which mothers and children receive the intervention and questionnaires	Behavioral: behavioral; The intervention package contains behavior change techniques targeting outcome expectancy, self-efficacy, action planning, coping planning, and self-monitoring. The active control group receives an information sheet regarding recommendations on fruit and vegetable intake. There will be 3 assessment points in time, with 1 month and six months in between. All the intervention materials and information sheets will be handed to participants after the baseline assessment. The self-monitoring calendar will be collected at time 2 assessment.
Experimental: children; only the children receive the intervention and mothers and children receive the questionnaires	Behavioral: behavioral; The intervention package contains behavior change techniques targeting outcome expectancy, self-efficacy, action planning, coping planning, and self-monitoring. The active control group receives an information sheet regarding recommendations on fruit and vegetable intake. There will be 3 assessment points in time, with 1 month and six months in between. All the intervention materials and information sheets will be handed to participants after the baseline assessment. The self-monitoring calendar will be collected at time 2 assessment.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
changes in fruit intake using a self-reported questionnaire	using a self-reported questionnaire	baseline, 1 Months, 6 months follow-up
changes in vegetable intake using a self-reported questionnaire	using a self-reported questionnaire	baseline, 1 Months, 6 months follow-up

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
changes in self efficacy using a self-reported questionnaire	using a self-reported questionnaire	baseline, 1 Months, 6 months follow-up
changes in outcome expectancy using a self-reported questionnaire	using a self-reported questionnaire	baseline, 1 Months, 6 months follow-up
changes in coping planning using a self-reported questionnaire	using a self-reported questionnaire	baseline, 1 Months, 6 months follow-up
changes in action planning using a self-reported questionnaire	using a self-reported questionnaire	baseline, 1 Months, 6 months follow-up
changes in self-monitoring using a self-reported questionnaire	using a self-reported questionnaire	baseline, 1 Months, 6 months follow-up

Collaborators and Investigators

• Sponsor: Qazvin University Of Medical Sciences

Study record dates

Study Major Dates

• Study Start: March 1, 2015
• Primary Completion (Actual): December 1, 2015
• Study Completion (Actual): June 1, 2016

Study Registration Dates

• First Submitted: March 25, 2015
• First Submitted That Met QC Criteria: March 31, 2015
• First Posted (Estimate): April 1, 2015

Study Record Updates

• Last Update Posted (Estimate): July 25, 2016
• Last Update Submitted That Met QC Criteria: July 22, 2016
• Last Verified: July 1, 2016

More Information

Terms related to this study

• Other Study ID Numbers: 682