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This study examines the effects of nutrition interventions on the health, behavior, and well-being of women living with HIV in Uganda. The interventions aim to improve nutrition through information campaigns and recipe demonstrations. Results show positive impacts on health, education, income, and livelihoods. The study raises new questions about the mechanisms and long-term impacts of these interventions.
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Information delivery, Nutrition and HIV Treatment: Evidence from a randomized field experiment on women living with HIV in UgandaPatrick Lubega, Frances Nakakawa, Gaia Narciso and Carol Newman
Information delivery, Nutrition and HIV Treatment: Evidence from a randomized field experiment on women living with HIV in Uganda The aim is to test the impact of interventions aimed at improving the nutrition of women living with HIV in Uganda. We are interested in testing: • Their impact on health and welfare outcomes • Their impact on behavior related to nutrition • Their impact on behavior related to self-employment activities • The mechanisms through which changes in behavior occur To achieve this we use a randomized controlled trial design
Background Uganda’s national response to HIV/AIDS is recognised as strong and effective Prevalence rate is estimated at 7.4% (UNAIDS, 2014) Increased enrolment of people on ART from 570,373 in 2013 to 750,896 in 2014. However, an area in need of research is the relationship between HIV treatment outcomes and nutrition Ugandan Ministry for Health has produced a training manual to guide practitioners in the management of nutritional aspects of HIV care and provides information on when and how to use RUTFs in the setting of HIV and severe malnutrition. But, a significant percentage of those attending for treatment have mild to moderate malnutrition and do not receive supplementary feeding under the present criteria
Experimental design We randomly selected 4 sub-regions of Uganda; We randomly selected 24 clinics, 6 in each of the four sub-regions; At baseline each clinic was visited for two days during the HIV; clinic to recruit participants; On average 135 women recruited in each clinic; Baseline survey instrument gathers information on: • Personal characteristics of woman • Personal characteristics of family members • Food frequency questionnaire • Income • Agricultural production • Enterprise activity • Employment • Housing • Access to credit and savings behavior
Experimental design Two separate treatments are considered and randomization of baseline participants occurs at the clinic level; Each group includes 8 clinics and is evenly distributed across each of the 4 sub-regions.
Timeline April-Sept 2014 Baseline Oct-Dec 2014 Intervention 1 Jan – Mar 2015 Intervention 2 Apr – May 2015 Intervention 3/Evaluation 1 July-Aug 2015 Evaluation 2
Details on interventions Nutritional Information Campaign • Delivered by clinic staff at each visit • Content of campaign: • Information leaflets and posters • Hands off approach • Allow clinics to do as they please in attempt to mimic typical campaigns by Ministry of Health
Treatment 2: Recipe Demonstration Locally sourced Home-made Nutritious Foods Nutritionists working in each region to establish locally sourced ingredients that can be used to prepare a Home-Made Nutritious Food. Products tested at Makerere University for nutrient content, taste and aesthetic appeal – similar to bringing product to market Intervention takes the form of cookery demonstrations
Outcomes Health and education Income and livelihoods Empowerment Anthropometrics Using our RCT design we can obtain the average impact of a each intervention on outcomes for women in treated clinics by comparing them to the women in the control clinics
Behavioural change due to information delivery • Women in cookery clinics more likely to acknowledge that they received access to information. • Positive impact of information only on number of meals per day only. • Cookery has positive impact on number of snacks per day. This is consistent with trying the recipe. • Cookery clinics more likely than information to try the recipe
Health and education • Lower probability of reporting illness in both information and cookery clinics – effect is bigger in cookery • Lower proportion of children in the household reported as being sick in cookery (no effect of information alone) • Cookery reduces the proportion of children that are absent from school because of failure to pay school fees (no effect of information alone) Questions: What is mechanism? Is the better well-being of women in the cookery clinics impacting on incomes?
Income and livelihoods Cookery has positive impact on • all types of personal income • household income • the decision to start an enterprise. This suggests that the increase in well-being associated with the cookery campaign leads to greater earning ability of women. This allows them to pay school fees and reduces the proportion of days that children are absent from school. The information campaign also increases the health of women possibly because they eat more frequent meals. There are no knock on effects for children or effects on other outcomes such as income.
Income and livelihoods These results raise new questions The fact that the same welfare outcomes are not observed in information clinics means that there is something different about the cookery clinics. There are two possibilities: they become super-nourished because they are eating the recipes there is something about the way the information is delivered that empowers women to work harder.
Empowerment • We find an increase in control over personal resources in cookery clinicscoupled with a decline in the joint control of personal finances
Anthropometrics Decline in anthropometrics in cookery clinics. Question: They are working harder so they are losing weight. But overall they are feeling better. Is it diversity in diet? Consumption of micronutrients? More analysis needed.
Conclusions Lower probability of reporting illness in both information and cookery clinics – effect is bigger in cookery Lower proportion of children in the household reported as being sick in cookery Cookery reduces the proportion of children that are absent from school because of failure to pay school fees (no effect of information alone) Cookery has positive impact on • all types of personal income • household income • the decision to start an enterprise.
Conclusions This suggests that the increase in well-being associated with the cookery campaign leads to greater earning ability of women. This allows them to pay school fees and reduces the proportion of days that children are absent from school. The information campaign also increases well-being of women but with no knock on effects for children or other welfare outcomes Some evidence of increase in control over personal resources in cookery clinicscoupled with decline in joint control of personal finances Decline in anthropometrics in cookery clinics
Econometric specification is the particular outcome variable of interest for woman i in time period t; is a dummy indicator for whether woman i is in an information clinic; is a dummy indicator for whether woman i is in a cookery clinic; is a dummy indicator for the time period – zero for the baseline and one for the evaluations; is a vector of time varying control variables; are woman fixed effects.
Behavioural change in relation to information contained in campaign Standard errors computed using wild bootstrapping to account for clustering at the clinic level (Cameron, Gelbrach, and Miller, 2008). p-values in parenthesis. *** p<0.01, ** p<0.05, * p<0.1
Health and education Standard errors computed using wild boostrapping to account for clustering at the clinic level (Cameron, Gelbrach, and Miller, 2008). p-values in parenthesis. *** p<0.01, ** p<0.05, * p<0.1
Income and livelihoods Standard errors computed using wild boostrapping to account for clustering at the clinic level (Cameron, Gelbrach, and Miller, 2008). p-values in parenthesis. *** p<0.01, ** p<0.05, * p<0.1
Empowerment Standard errors computed using wild boostrapping to account for clustering at the clinic level (Cameron, Gelbrach, and Miller, 2008). p-values in parenthesis. *** p<0.01, ** p<0.05, * p<0.1
Anthropometrics Standard errors computed using wild boostrapping to account for clustering at the clinic level (Cameron, Gelbrach, and Miller, 2008). p-values in parenthesis. *** p<0.01, ** p<0.05, * p<0.1