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Process evaluation of a school-based intervention in Ecuadorian adolescents from the perspective of parents

Author
Organization
Abstract
Purpose: To report reach, fidelity, dose and barriers of a school-based intervention in Ecuador from the perspectives of the parents. Methods: A pair-matched cluster randomized-controlled trial was conducted in 20 schools (1430 adolescents) in Cuenca, Ecuador (2009-2012). The trial aimed to improve dietary intake and physical activity behavior. Individual and environmental strategies were implemented in two stages. The individual strategy included the delivery of educational package. The environmental strategies included, among others activities, six parental workshops that were planned during two intervention stages. Parents were invited though a letter signed by the school principle two days in advance of a workshop. Semi-structured observations and evaluation forms filled out by all the attendants after each workshop were used to assess dose reach and fidelity. Food intake and screen time were the main outcomes and were measured at 17 months follow-up (stage-1) and 28 months follow-up (stage-2). Results: In total 1401 adolescents (20 schools) participated in the study. Reach of parents was low with only 15% of the invited parents attending the workshops. Among the parents that attended, 79% considered the delivered information as new, 93% reported that the workshops fulfilled their concerns, 66% believed that the timing was perfect, 96% recognized the need to change their habits. The parents scored the intervention workshops overall at 9/10. There were no differences in dose delivered, dose received and fidelity between stage 1 and 2, but the reach was higher during stage 1 (21% vs. 11%). Adolescents from the intervention group consumed significantly less harmful food groups (soft drinks, sweets, junked food and added sugar) and ate more fruit, vegetable and fiber compare to their peers in the control group. Additionally, adolescents in the intervention group showed a significant lower increase in the screen time compare to adolescents in the control group. These effects were predominant observed during stage 1 and attenuated at stage 2. Conclusion: The dose and fidelity of the ACTIVITAL intervention were similar in both stages. The higher reach in the first stage may have contributed to obtain more favorable results in this stage compared to the effect at stage 2.
Keywords
randomized control trial, adolescents, process evaluation, parents

Citation

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MLA
Andrade Tenesaca, Dolores Susana, et al. “Process Evaluation of a School-Based Intervention in Ecuadorian Adolescents from the Perspective of Parents.” International Society for Behavioral Nutrition and Physical Activity, Annual Meeting, Abstracts, 2015.
APA
Andrade Tenesaca, D. S., Ochoa Avilés, A. M., Verstraeten, R., Lachat, C., & Kolsteren, P. (2015). Process evaluation of a school-based intervention in Ecuadorian adolescents from the perspective of parents. International Society for Behavioral Nutrition and Physical Activity, Annual Meeting, Abstracts. Presented at the 2015 Annual meeting of the International Society for Behavioral Nutrition and Physical Activity (ISBNPA 2015), Edinburgh, Scotland, UK.
Chicago author-date
Andrade Tenesaca, Dolores Susana, Angélica María Ochoa Avilés, Roosmarijn Verstraeten, Carl Lachat, and Patrick Kolsteren. 2015. “Process Evaluation of a School-Based Intervention in Ecuadorian Adolescents from the Perspective of Parents.” In International Society for Behavioral Nutrition and Physical Activity, Annual Meeting, Abstracts.
Chicago author-date (all authors)
Andrade Tenesaca, Dolores Susana, Angélica María Ochoa Avilés, Roosmarijn Verstraeten, Carl Lachat, and Patrick Kolsteren. 2015. “Process Evaluation of a School-Based Intervention in Ecuadorian Adolescents from the Perspective of Parents.” In International Society for Behavioral Nutrition and Physical Activity, Annual Meeting, Abstracts.
Vancouver
1.
Andrade Tenesaca DS, Ochoa Avilés AM, Verstraeten R, Lachat C, Kolsteren P. Process evaluation of a school-based intervention in Ecuadorian adolescents from the perspective of parents. In: International Society for Behavioral Nutrition and Physical Activity, Annual meeting, Abstracts. 2015.
IEEE
[1]
D. S. Andrade Tenesaca, A. M. Ochoa Avilés, R. Verstraeten, C. Lachat, and P. Kolsteren, “Process evaluation of a school-based intervention in Ecuadorian adolescents from the perspective of parents,” in International Society for Behavioral Nutrition and Physical Activity, Annual meeting, Abstracts, Edinburgh, Scotland, UK, 2015.
@inproceedings{5948596,
  abstract     = {{Purpose: To report reach, fidelity, dose and barriers of a school-based intervention in Ecuador from the perspectives of the parents.
Methods: A pair-matched cluster randomized-controlled trial was conducted in 20 schools (1430 adolescents) in Cuenca, Ecuador (2009-2012). The trial aimed to improve dietary intake and physical activity behavior. Individual and environmental strategies were implemented in two stages. The individual strategy included the delivery of educational package. The environmental strategies included, among others activities, six parental workshops that were planned during two intervention stages. Parents were invited though a letter signed by the school principle two days in advance of a workshop. Semi-structured observations and evaluation forms filled out by all the attendants after each workshop were used to assess dose reach and fidelity. Food intake and screen time were the main outcomes and were measured at 17 months follow-up (stage-1) and 28 months follow-up (stage-2).
Results: In total 1401 adolescents (20 schools) participated in the study. Reach of parents was low with only 15% of the invited parents attending the workshops. Among the parents that attended, 79% considered the delivered information as new, 93% reported that the workshops fulfilled their concerns, 66% believed that the timing was perfect, 96% recognized the need to change their habits. The parents scored the intervention workshops overall at 9/10. There were no differences in dose delivered, dose received and fidelity between stage 1 and 2, but the reach was higher during stage 1 (21% vs. 11%).  Adolescents from the intervention group consumed significantly less harmful food groups (soft drinks, sweets, junked food and added sugar) and ate more fruit, vegetable and fiber compare to their peers in the control group. Additionally, adolescents in the intervention group showed a significant lower increase in the screen time compare to adolescents in the control group. These effects were predominant observed during stage 1 and attenuated at stage 2.
Conclusion: The dose and fidelity of the ACTIVITAL intervention were similar in both stages. The higher reach in the first stage may have contributed to obtain more favorable results in this stage compared to the effect at stage 2.}},
  author       = {{Andrade Tenesaca, Dolores Susana and Ochoa Avilés, Angélica María and Verstraeten, Roosmarijn and Lachat, Carl and Kolsteren, Patrick}},
  booktitle    = {{International Society for Behavioral Nutrition and Physical Activity, Annual meeting, Abstracts}},
  keywords     = {{randomized control trial,adolescents,process evaluation,parents}},
  language     = {{eng}},
  location     = {{Edinburgh, Scotland, UK}},
  title        = {{Process evaluation of a school-based intervention in Ecuadorian adolescents from the perspective of parents}},
  year         = {{2015}},
}