The effect of plant-based homestead food production with and without small-scale aquaculture on dietary intake of women farmers and their children in Prey Veng, Cambodia
department or school: Land and Food Systems, Faculty of
data provider: DSpace
degree campus: UBCV
creator: Verbowski, Vashti Carmell
issued: 2015-10-24T07:47:12
issued: 2015
related degree: Master of Science - MSc
degree grantor: University of British Columbia
description: In 2011-2013, 15.4% of the Cambodian population was undernourished, compared to <5% in Canada. The Cambodian diet is rice-based and low in nutrient-dense animal-source foods. Homestead food production (HFP) and aquaculture are potential interventions to improve dietary intake. However, we lack comprehensive evidence that these interventions improve intake. Using a cluster randomized control trial, I aimed to determine whether women and children receiving HFP with or without aquaculture have higher intakes or lower prevalence of inadequate intakes of select nutrients, compared to controls in Prey Veng, Cambodia. Ninety villages of ten households each (n=900) were randomized to: HFP, HFP plus aquaculture, or control. After 22-months of intervention, interviewers collected 24-hour dietary recalls (24HRs) from women 18-50 y (n=429) and children 6 m-7 y (n=421). Repeat 24HRs were collected (n=139) to allow for adjustment of within-person variation in intake (using PC-SIDE software). Mean nutrient intakes were compared using generalized estimating equations (GEE) models. Prevalence of nutrient inadequacy was compared by applying the Estimated Average Requirement cut-point method or probability approach and using GEE models. After intervention, women in the HFP group had higher mean intakes of zinc (+1.0 mg) and vitamin A (+139 Retinol Activity Equivalent (RAE)), compared to controls (p<0.05). Women in the HFP plus aquaculture group had higher mean intakes of vitamin A (+191 RAE) and iron (+2.7 mg), and lower prevalence of inadequate vitamin A intake (-19%) and iron intake at 10% bioavailability (-7%) and 5% bioavailability (-2%) levels, compared to controls (p<0.05). Among groups of children and between the HFP and HFP plus aquaculture groups for both women and children, there were no significant differences in nutrient intakes or prevalence of nutrient inadequacy. This research provides evidence that intervention with HFP in Cambodia results in higher zinc and vitamin A …
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/55088
note: THE EFFECT OF PLANT-BASED HOMESTEAD FOOD PRODUCTION WITH AND WITHOUT SMALL-SCALE AQUACULTURE ON DIETARY INTAKE OF WOMEN FARMERS AND THEIR CHILDREN IN PREY VENG, CAMBODIA by Vashti Carmell Verbowski B.Sc., The University of British Columbia, 2009 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE in THE FACULTY OF GRADUATE AND POSTDOCTORAL STUDIES (Land and Food Systems) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) October 2015 © Vashti Carmell Verbowki, 2015 ii Abstract In 2011-2013, 15.4% of the Cambodian population was undernourished, compared to <5% in Canada. The Cambodian diet is rice-based and low in nutrient-dense animal-source foods. Homestead food production (HFP) and aquaculture are potential interventions to improve dietary intake. However, we lack comprehensive evidence that these interventions improve intake. Using a cluster randomized control trial, I aimed to determine whether women and children receiving HFP with or without aquaculture have higher intakes or lower prevalence of inadequate intakes of select nutrients, compared to controls in Prey Veng, Cambodia. Ninety villages of ten households each (n=900) were randomized to: HFP, HFP plus aquaculture, or control. After 22-months of intervention, interviewers collected 24-hour dietary recalls (24HRs) from women 18-50 y (n=429) and children 6 m-7 y (n=421). Repeat 24HRs were collected (n=139) to allow for adjustment of within-person variation in intake (using PC-SIDE software). Mean nutrient intakes were compared using generalized estimating equations (GEE) models. Prevalence of nutrient inadequacy was compared by applying the Estimated Average Requirement cut-point method or probability approach and using GEE models. After intervention, women in the HFP group had higher mean intakes of zinc (+1.0 mg) and vitamin A (+139 Retinol Activity Equivalent (RAE)), compared to controls (p<0.05). Women in the HFP plus aquaculture group had higher mean intakes of…
has type: Thesis/Dissertation
date issued: 2015-11
is shown at: 10.14288/1.0166792
language: eng
degree discipline: Human Nutrition
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivs 2.5 Canada
rights URI: http://creativecommons.org/licenses/by-nc-nd/2.5/ca/
scholar level: Graduate
type: Text
identifier URI: http://hdl.handle.net/2429/55088