Did HealthKick, a randomised controlled trial primary school nutrition intervention improve dietary quality of children in low-income settings in South AfricaReportar como inadecuado




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BMC Public Health

, 15:948

First Online: 23 September 2015Received: 25 February 2015Accepted: 15 September 2015DOI: 10.1186-s12889-015-2282-4

Cite this article as: Steyn, N.P., de Villiers, A., Gwebushe, N. et al. BMC Public Health 2015 15: 948. doi:10.1186-s12889-015-2282-4

Abstract

BackgroundNumerous studies in schools in the Western Cape Province, South Africa have shown that children have an unhealthy diet with poor diversity and which is high in sugar and fat. HealthKick HK was a three-year randomised controlled trial aimed at promoting healthy eating habits.

MethodsSixteen schools were selected from two low-income school districts and randomly allocated to intervention n = 8 or control school n = 8 status. The HK intervention comprised numerous activities to improve the school nutrition environment such as making healthier food choices available and providing nutrition education support. Dietary intake was measured by using a 24-h recall in 2009 in 500 grade 4 learners at intervention schools and 498 at control schools, and repeated in 2010 and 2011. A dietary diversity score DDS was calculated from nine food groups and frequency of snack food consumption was determined. A school level analysis was performed.

ResultsThe mean baseline 2009 DDS was low in both arms 4.55 SD = 1.29 and 4.54 1.22 in the intervention and control arms respectively, and 49 % of learners in HK intervention schools had a DDS ≤4 =low diversity. A small increase in DDS was observed in both arms by 2011: mean score 4.91 1.17 and 4.83 1.29 in the intervention and control arms respectively. The estimated DSS intervention effect over the two years was not significant 0 .04 95 % CI: −0.37 to 0.46. Food groups least consumed were eggs, fruit and vegetables. The most commonly eaten snacking items in 2009 were table sugar in beverages and-or cereals 80.5 %; followed by potato crisps 53.1 %; non-carbonated beverages 42.9 %; sweets 26.7 % and sugar-sweetened carbonated beverages 16 %. Unhealthy snack consumption in terms of frequency of snack items consumed did not improve significantly in intervention or control schools.

DiscussionThe results of the HK intervention were disappointing in terms of improvement in DDS and a decrease in unhealthy snacking. We attribute this to the finding that the intervention model used by the researchers may not have been the ideal one to use in a setting where many children came from low-income homes and educators have to deal with daily problems associated with poverty.

ConclusionsThe HK intervention did not significantly improve quality of diet of children.

KeywordsSchools Nutrition Intervention HealthKick South Africa  Download fulltext PDF



Autor: Nelia P. Steyn - Anniza de Villiers - Nomonde Gwebushe - Catherine E. Draper - Jillian Hill - Marina de Waal - Lucinda Da

Fuente: https://link.springer.com/







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