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Helen Keller InternationalHelen Keller InternationalHelen Keller InternationalNutrition International
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Burkina FasoCameroonCôte d'IvoireDRCGuineaKenyaMadagascarMaliNigerNigeriaNigeriaNigeriaNigeriaNigeriaNigeriaNigeriaNigeriaNigeriaNigeriaNigeriaNigeriaNigeriaNigeriaNigeriaAngolaChadTogoUganda
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InputsunittypeOverallAdamawaAkwa IbomAnambraBenueDeltaEbonyiEdoEkitiImoKogiNasarawaOgunOsunRiversTarabaSourceGW analysis and discussion
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Final cost-effectiveness estimate (pulled from "Main calcs" sheet for visibility)
xbenchmark
main-22.615.98.516.910.94.815.932.859.321.54.42.39.55.213.53.85.93.24.212.04.82.37.729.05.620.114.96.3
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Costs
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GiveWell costs
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Grant size$input$1,000,000----------------------------Arbitrary value
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Cost breakdown
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Percentage of total costs covered by the grantee%input-43%64%47%47%55%47%60%43%36%47%47%47%47%47%47%47%47%47%47%47%47%47%47%47%70%70%70%70%GW analysisGiveWell's analysis of Helen Keller International's cost per supplement
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Percentage of total costs covered by Nutrition International (vitamin A capsule procurement)%input-6%6%7%7%5%7%7%8%8%7%7%7%7%7%7%7%7%7%7%7%7%7%7%7%0%0%0%0%GW analysisGiveWell's analysis of Helen Keller International's cost per supplement
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Percentage of total costs covered by other philanthropic actors%input-6%0%13%13%10%13%0%18%26%13%13%13%13%13%13%13%13%13%13%13%13%13%13%13%0%0%0%0%GW analysisGiveWell's analysis of Helen Keller International's cost per supplement
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Percentage of total costs covered by domestic governments (financial contributions)%input-15%0%3%3%0%3%3%0%0%3%3%3%3%3%3%3%3%3%3%3%3%3%3%3%0%0%0%0%GW analysisGiveWell's analysis of Helen Keller International's cost per supplement
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Percentage of total costs covered by domestic governments (in-kind contributions)%input-30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%GW analysisGiveWell's analysis of Helen Keller International's cost per supplement
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Cost per child covered
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Cost per vitamin A supplement delivered$input-$1.06$1.14$1.02$1.02$1.39$1.02$1.02$0.80$0.86$1.02$1.02$1.02$1.02$1.02$1.02$1.02$1.02$1.02$1.02$1.02$1.02$1.02$1.02$1.02$1.53$1.53$1.09$1.02GW analysisGiveWell's analysis of Helen Keller International's cost per supplement
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Supplementation rounds delivered per year#input2----------------------------
Helen Keller International
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Counterfactual mortality
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Mortalities per year among people under five
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Total mortalities per year among people under age 5#input-98,77964,03564,817168,46845,40653,34548,156109,643120,21713,9083,4627,87226,8857,8617,9395,4082,63211,3813,66313,33320,4484,5226,70734,19458,76585,57515,01091,702GBD 2019
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Total early neonatal mortalities per year (babies under 7 days old)#input-19,94117,01725,08653,76311,00320,42715,93431,22922,9133,8241,3293,4539,0082,7882,6412,1479745,0351,4894,4568,1602,0612,3029,37320,69519,4715,10833,675GBD 2019
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Total late neonatal mortalities per year (babies between 7 and 27 days old)#input-6,9494,7195,32910,8933,6345,2213,8856,8087,6539622295671,9005575743831858452579621,5233284602,4843,2765,9358197,104GBD 2019
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Total post-neonatal mortalities per year (babies between 28 and 364 days old)#input-30,59219,24512,22550,49211,98415,33015,45128,41330,3623,8158991,9787,5972,1332,1851,4066882,9049023,7485,4571,0641,8479,77417,13327,3883,68725,134GBD 2019
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Estimated mortalities per year among the VAS-eligible population
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Proportion of post-neonatal mortalities that are among 1-5-month-olds%input53%------------------------
GW's analysis of the age breakdown of mortalities under age 1
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All-cause mortality rate among the VAS-eligible population
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All-cause mortality rate among people under age 5
per 100k
input-2,4421,5221,6161,2362,1188311,2222,6982,4772,4581,2241,0071,7721,5461,8141,2861,4051,0071,0981,7631,3549301,5612,7121,1422,5681,3461,293GBD 2019
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Estimated proportion of people under age 5 who are 6-59-month-olds%input-92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%92%GW guesstimate
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All-cause mortality rate among the VAS-eligible population in the absence of VAS
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Adjustment for differences between the national mortality rate and mortality rates in the subnational areas targeted for VAS%input---14%----17%---------------------GW analysisGW's analysis of subnational mortality rates for VAS
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External validity
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Vitamin A deficiency prevalence in Nigeria according to the latest national survey
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Vitamin A deficiency prevalence in Nigeria according to the latest national survey%input----------30%30%30%30%30%30%30%30%30%30%30%30%30%30%30%----
Maziya-Dixon et al. 2006
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Year of latest national vitamin A deficiency survey in Nigeriayearinput----------200120012001200120012001200120012001200120012001200120012001----
Maziya-Dixon et al. 2006
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National data on health proxies for vitamin A deficiency according to DHS surveys
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National proportion of people under age 5 who were experiencing stunting in 2003%input----------38%38%38%38%38%38%38%38%38%38%38%38%38%38%38%----
Nigeria DHS 2003 Final Report
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National proportion of people under age 5 who were experiencing wasting in 2003%input----------9%9%9%9%9%9%9%9%9%9%9%9%9%9%9%----
Nigeria DHS 2003 Final Report
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National proportion of people under age 5 who were experiencing stunting in 2018%input----------37%37%37%37%37%37%37%37%37%37%37%37%37%37%37%----
Nigeria DHS 2018 Final Report
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National proportion of people under age 5 who were experiencing wasting in 2018%input----------7%7%7%7%7%7%7%7%7%7%7%7%7%7%7%----
Nigeria DHS 2018 Final Report
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National proportion of 6-59-month-olds who were experiencing anemia in 2018%input----------68%68%68%68%68%68%68%68%68%68%68%68%68%68%68%----
Nigeria DHS 2018 Final Report
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National data on economic proxies for vitamin A deficiency according to the World Bank
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National proportion of the population below the international poverty line in 2003%input----------56%56%56%56%56%56%56%56%56%56%56%56%56%56%56%----
World Bank Open Data
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National proportion of the population below the international poverty line in 2018%input----------39%39%39%39%39%39%39%39%39%39%39%39%39%39%39%----
World Bank Open Data
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National data on economic proxies for vitamin A deficiency according to a 2019 NBS survey
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National proportion of the population below Nigeria's poverty line in 2019%input----------40%40%40%40%40%40%40%40%40%40%40%40%40%40%40%----
Nigeria NBS 2019 Poverty and Equality Report
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Change in proxies for vitamin A deficiency over time
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Weight placed on change in rates of stunting as a proxy for changes in vitamin A deficiency
%input33%----------------------------GW guesstimate
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Weight placed on change in rates of wasting as a proxy for changes in vitamin A deficiency
%input33%----------------------------GW guesstimate
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Weight placed on change in poverty rates as a proxy for changes in vitamin A deficiency
%input33%----------------------------GW guesstimate
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Approximated change in vitamin A deficiency prevalence over time
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Year of early data points for vitamin A defiency proxiesyearinput----------200320032003200320032003200320032003200320032003200320032003----
Nigeria DHS 2003 Final Report
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Year of late data points for vitamin A defiency proxiesyearinput----------201820182018201820182018201820182018201820182018201820182018----
Nigeria DHS 2018 Final Report
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Expected year of the grantee's VAS campaignyearinput-2022202220222022-202220222022-2022202220222022202220222022202220222022202220222022202220222022202220222022
Helen Keller International
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State-level data on health proxies for vitamin A deficiency according to DHS surveys
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State-level proportion of people under age 5 who were experiencing stunting in 2018
%input----------40%20%14%21%24%25%16%22%18%20%31%27%24%17%42%----
Nigeria DHS 2018 Final Report
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State-level proportion of people under age 5 who were experiencing wasting in 2018
%input----------4%4%2%8%2%5%3%3%7%4%6%6%5%6%5%----
Nigeria DHS 2018 Final Report
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State-level proportion of 6-59-month-olds who were experiencing anemia in 2018%input----------56%75%75%62%70%79%66%72%59%64%68%60%58%79%71%----
Nigeria DHS 2018 Final Report
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State-level data on economic proxies for vitamin A deficiency according to a 2019 NBS survey
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State-level proportion of the population below Nigeria's poverty line in 2019%input----------75%27%15%33%6%80%12%28%29%29%57%9%9%24%88%----
Nigeria NBS 2019 Poverty and Equality Report
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Adjustment for variation in vitamin A deficiency prevalence across states
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Weight placed on change in rates of stunting as a proxy for changes in vitamin A deficiency
%input----------25%25%25%25%25%25%25%25%25%25%25%25%25%25%25%----GW guesstimate
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Weight placed on change in rates of wasting as a proxy for changes in vitamin A deficiency
%input----------25%25%25%25%25%25%25%25%25%25%25%25%25%25%25%----GW guesstimate
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Weight placed on change in rates of anemia as a proxy for changes in vitamin A deficiency
%input----------25%25%25%25%25%25%25%25%25%25%25%25%25%25%25%----GW guesstimate
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Weight placed on change in poverty rates as a proxy for changes in vitamin A deficiency
%input----------25%25%25%25%25%25%25%25%25%25%25%25%25%25%25%----GW guesstimate
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Vitamin A deficiency prevalence for countries other than Nigeria
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Vitamin A deficiency prevalence found in most recent survey of people under age 5%input-25%35%24%61%-9%42%77%-----------------28%--GW analysisGW's analysis of recent vitamin A deficiency surveys
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Year of most recent vitamin A deficiency survey of people under age 5yearinput-2010200920071999-201120001997-----------------2008--GW analysisGW's analysis of recent vitamin A deficiency surveys
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Vitamin A deficiency prevalence rate among 6-59-month-olds, derived from GBD 2017%input-31%31%30%33%28%36%27%31%32%---------------26%29%26%23%GBD 2017
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Weighting for vitamin A deficiency prevalence rates from different sources
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Weight assigned to vitamin A deficiency rates found in the most recent surveys%input-25%50%50%50%0%50%50%25%0%---------------0%25%0%0%GW analysisGW's analysis of recent vitamin A deficiency surveys
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Weight assigned to vitamin A deficiency rates from GBD 2017%input-75%50%50%50%100%50%50%75%100%---------------100%75%100%100%GW analysis
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Vitamin A deficiency prevalence in the populations studied by trials from Imdad et al. 2017
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Vitamin A deficiency prevalence in the populations studied by trials from Imdad et al. 2017
%input59%----------------------------GW analysis
GW's VAS supplementary analysis (2024), Imdad 2017 VAD prevalence estimates
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Measles mortalities per year among people under five
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Measles mortalities per year among people under age 5#input-2,0831,9431893,1239963691,9362,4449,654735181251925124151251567101699322,382493,759GBD 2019
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Early neonatal measles mortalities per year (babies under 7 days old)#input-000213000000000000000000000000GBD 2019
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Late neonatal measles mortalities per year (babies between 7 and 27 days old)#input-00043000000000000000000000000GBD 2019
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Post-neonatal measles mortalities per year (babies between 28 and 364 days old)#input-616528529402521116066752,53614142845314211142232258625131,053GBD 2019
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