| Title: |
Short- and Medium-Term Efficacy of a Web-Based Computer-Tailored Nutrition Education Intervention for Adults Including Cognitive and Environmental Feedback: Randomized Controlled Trial |
| Authors: |
Springvloet, L.; Lechner, L.; de Vries, H.; Candel, M.J.J.M.; Oenema, A. |
| Source: |
Springvloet, L, Lechner, L, de Vries, H, Candel, M J J M & Oenema, A 2015, 'Short- and Medium-Term Efficacy of a Web-Based Computer-Tailored Nutrition Education Intervention for Adults Including Cognitive and Environmental Feedback: Randomized Controlled Trial', Journal of Medical Internet Research, vol. 17, no. 1, e23. https://doi.org/10.2196/jmir.3837 |
| Publication Year: |
2015 |
| Collection: |
Maastricht University Research Publications |
| Subject Terms: |
cognitive feedback; environmental feedback; self-regulation; computer tailoring; nutrition education; fruit consumption; vegetable consumption; fat consumption; snack consumption; PHYSICAL-ACTIVITY INTERVENTIONS; BEHAVIOR-CHANGE INTERVENTIONS; LOCAL FOOD ENVIRONMENT; OLDER-ADULTS; FAT INTAKE; SOCIOECONOMIC INEQUALITIES; DIETARY BEHAVIORS; HEALTH |
| Description: |
Background: Web-based, computer-tailored nutrition education interventions can be effective in modifying self-reported dietary behaviors. Traditional computer-tailored programs primarily targeted individual cognitions (knowledge, awareness, attitude, self-efficacy). Tailoring on additional variables such as self-regulation processes and environmental-level factors (the home food environment arrangement and perception of availability and prices of healthy food products in supermarkets) may improve efficacy and effect sizes (ES) of Web-based computer-tailored nutrition education interventions. Objective: This study evaluated the short-and medium-term efficacy and educational differences in efficacy of a cognitive and environmental feedback version of a Web-based computer-tailored nutrition education intervention on self-reported fruit, vegetable, high-energy snack, and saturated fat intake compared to generic nutrition information in the total sample and among participants who did not comply with dietary guidelines (the risk groups). Methods: A randomized controlled trial was conducted with a basic (tailored intervention targeting individual cognition and self-regulation processes; n=456), plus (basic intervention additionally targeting environmental-level factors; n=459), and control (generic nutrition information; n=434) group. Participants were recruited from the general population and randomly assigned to a study group. Self-reported fruit, vegetable, high-energy snack, and saturated fat intake were assessed at baseline and at 1-(T1) and 4-months (T2) postintervention using online questionnaires. Linear mixed model analyses examined group differences in change over time. Educational differences were examined with groupxtimexeducation interaction terms. Results: In the total sample, the basic (T1: ES=-0.30; T2: ES=-0.18) and plus intervention groups (T1: ES=-0.29; T2: ES=-0.27) had larger decreases in high-energy snack intake than the control group. The basic version resulted in a larger decrease in saturated ... |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| ISSN: |
1439-4456; 1438-8871 |
| Relation: |
info:eu-repo/semantics/altIdentifier/pmid/25599828; info:eu-repo/semantics/altIdentifier/wos/000374123300021; info:eu-repo/semantics/altIdentifier/pissn/1439-4456; info:eu-repo/semantics/altIdentifier/eissn/1438-8871 |
| DOI: |
10.2196/jmir.3837 |
| Availability: |
https://cris.maastrichtuniversity.nl/en/publications/4006ab73-80fc-40fc-afec-29dac8be5592; https://doi.org/10.2196/jmir.3837 |
| Rights: |
info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.46AF91CA |
| Database: |
BASE |