| Title: |
Long-term efficacy of a Web-based computer-tailored nutrition education intervention for adults including cognitive and environmental feedback: a randomized controlled trial |
| Authors: |
Springvloet, L.; Lechner, L.; de Vries, H.; Oenema, A. |
| Source: |
Springvloet, L, Lechner, L, de Vries, H & Oenema, A 2015, 'Long-term efficacy of a Web-based computer-tailored nutrition education intervention for adults including cognitive and environmental feedback: a randomized controlled trial', BMC Public Health, vol. 15, no. 1, 372. https://doi.org/10.1186/s12889-015-1707-4 |
| Publication Year: |
2015 |
| Collection: |
Maastricht University Research Publications |
| Subject Terms: |
Cognitive feedback; Environmental-level feedback; Self-regulation; Computer tailoring; Nutrition education; Fruit intake; Vegetable intake; Fat intake; High-energy snack intake; PHYSICAL-ACTIVITY INTERVENTIONS; SOCIOECONOMIC INEQUALITIES; FOOD ENVIRONMENT; HEALTH; BEHAVIORS; FRUIT; QUESTIONNAIRE; AVAILABILITY |
| Description: |
Background: Unhealthy diets are prevalent in Western countries, especially among low-educated people. To have an effect on health, it is important that dietary changes are sustained over time. This study examines long-term effects of a cognitive and environmental-feedback version of a Web-based computer-tailored (CT) nutrition education intervention targeting fruit, vegetables, high-energy snacks and saturated fat. Methods: A randomized controlled trial was conducted with a basic (tailored intervention targeting individual cognitions and self-regulation processes; n = 456), plus (additionally targeting environmental-level factors; n = 459) and control group (generic nutrition information; n = 434). Participants were recruited from the general population and randomly assigned to a study group. Online self-reported questionnaires assessed fruit, vegetable, high-energy snack and saturated fat intake, self-regulation, self-control, and Body Mass Index (BMI) at baseline and nine-months post-intervention. Linear mixed model analyses examined group differences in change over time. Educational differences were examined by 'group X time X education' interaction terms. Effects were examined in the total sample and among participants who did not comply with dietary-or BMI guidelines. Results: The effects on vegetable intake in the total sample differed according to educational level (p = 02). Among low/moderate-educated participants, the basic version was significantly more effective in increasing vegetable intake than the control program (effect size (ES) = 0.32) and plus version (ES = 0.22). No effects were found for high-educated participants. Self-regulation change was significantly larger in the control group than in the basic (ES = 0.18) and plus (ES = 0.16) group. Conclusions: In general, both intervention versions did not result in long-term intervention effects. The exception was an effect of the basic version on self-reported vegetable intake among low/moderate-educated adults in the total sample. More research ... |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| ISSN: |
1471-2458 |
| Relation: |
info:eu-repo/semantics/altIdentifier/pmid/25887891; info:eu-repo/semantics/altIdentifier/wos/000354176000001; info:eu-repo/semantics/altIdentifier/pissn/1471-2458 |
| DOI: |
10.1186/s12889-015-1707-4 |
| Availability: |
https://cris.maastrichtuniversity.nl/en/publications/b7bb83bd-e564-4196-949d-9b3e2805cbbe; https://doi.org/10.1186/s12889-015-1707-4 |
| Rights: |
info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.CEC2D9AA |
| Database: |
BASE |