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Increasing Household Purchase and Child Consumption of Calcium Products

NCT02591329 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 189

Last updated 2018-05-09

No results posted yet for this study

Summary

The objective of this research is to test the effectiveness of persuasive messages targeted at parents who have children who consume inadequate amounts of calcium. Specifically, the effectiveness of the intervention material on increase a) the purchase of calcium-rich products by parents, and b) the consumption of calcium-rich products in the parent and child will be examined in 400 families across Canada. Families will receive either the targeted intervention materials or standard of care generic nutrition materials retrieved from Health Canada's website. Materials will be delivered to parents during weeks 0, 8, 16, and 22 of the study. Monitoring of parents' calcium product purchases and consumption behaviour in both parents and children will occur at week 0,12, 24 weeks (immediately post-intervention) and at 52 weeks (i.e., 6-month follow-up). Purchases will be verified by grocery receipts made during the aforementioned weeks. Parents will self-report on their dietary consumption as well as their child's using a food frequency questionnaire. The study hypotheses are as follows:

1. Parents in the experimental condition will purchase more calcium-rich products as compared to parents in the control condition.
2. Parents and children in the experimental condition will consume more calcium rich products as compared to parents and children in the control condition.
3. Perceived outcome expectancies of consuming calcium-rich products will increase to a greater extent in parents in the experimental condition as compared to parents in the control condition.
4. Self-regulatory efficacy to consume calcium-rich products will increase to a greater extent in parents in the experimental condition as compared to parents in the control condition.
5. Perceived social support and role modelling behaviour will be highest in parents in the experimental condition as compared to parents in the control condition.
6. Self-regulatory efficacy and outcome expectancies will mediate the changes in calcium-rich product purchases and consumption.

Conditions

  • Dietary Modification

Interventions

BEHAVIORAL

Mail-out hard copy materials (education plus self-regulatory strategies examples)

BEHAVIORAL

Standard Care

Sponsors & Collaborators

  • University of British Columbia

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
SINGLE
Model
PARALLEL

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2015-08-31
Primary Completion
2017-03-31
Completion
2017-03-31

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02591329 on ClinicalTrials.gov