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2.
Curr Dev Nutr ; 8(1): 102053, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38187987

RESUMO

Background: The Minimum Dietary Diversity for Women of Reproductive Age (MDD-W) indicator was validated as a proxy of micronutrient adequacy among nonpregnant women in low- and middle-income countries (LMICs). At that time, indeed, there was insufficient data to validate the indicator among pregnant women, who face higher micronutrient requirements. Objective: This study aimed to validate a minimum food group consumption threshold, out of the 10 food groups used to construct MDD-W, to be used as a population-level indicator of higher micronutrient adequacy among pregnant women aged 15-49 y in LMICs. Methods: We used secondary quantitative 24-h recall data from 6 surveys in 4 LMICs (Bangladesh, Burkina Faso, India, and Nepal, total n = 4909). We computed the 10-food group Women's Dietary Diversity Score (WDDS-10) and calculated the mean probability of adequacy (MPA) of 11 micronutrients. Linear regression models were fitted to assess the associations between WDDS-10 and MPA. Sensitivity, specificity, and proportion of individuals correctly classified were used to assess the performance of MDD-W in predicting an MPA of >0.60. Results: In the pooled sample, median values (interquartile range) of WDDS-10 and MPA were 3 (1) and 0.20 (0.34), respectively, whereas the proportion of pregnant women with an MPA of >0.60 was 9.6%. The WDDS-10 was significantly positively associated with MPA in each survey. Although the acceptable food group consumption threshold varied between 4 and 6 food groups across surveys, the threshold of 5 showed the highest performance in the pooled sample with good sensitivity (62%), very good specificity (81%), and percentage of correctly classified individuals (79%). Conclusions: The WDDS-10 is a good predictor of dietary micronutrient adequacy among pregnant women aged 15-49 y in LMICs. Moreover, the threshold of 5 or more food groups for the MDD-W indicator may be extended to all women of reproductive age, regardless of their physiologic status.

3.
Public Health Nutr ; : 1-12, 2021 Sep 23.
Artigo em Inglês | MEDLINE | ID: mdl-34551851

RESUMO

OBJECTIVE: The Caribbean has seen a dramatic shift in the obesity and chronic disease prevalence over the past decades, suggesting a nutrition transition. Simultaneously, Martinique has faced a demographic transition marked by significant population ageing. We aimed to differentiate the contribution of changes in health status and dietary intakes due to shifts in demographic and socio-economic characteristics (DSEC) from that due to unobserved factors. DESIGN: Two cross-sectional surveys conducted in 2003 (n 743) and 2013 (n 573) on representative samples were used. Dietary intakes were estimated by 24-h recalls. The contribution of changes in health status and dietary intakes due to shifts in observed DSEC was differentiated from that due to unobserved factors over a 10-year interval, using Oaxaca-Blinder decomposition models. SETTING: Martinique, French region in the Caribbean. PARTICIPANTS: Martinican adults (≥16 years). RESULTS: Over the study period, health status deteriorated, partly owing to shifts in DSEC, explaining 62 % of the change in the prevalence of hypertension (+13 percentage points (pp)) and 48 % of waist circumference change (+3 cm). Diet quality decreased (mean adequacy ratio -2pp and mean excess ratio + 2 pp) and energy supplied by ultra-processed food increased (+4 pp). Shifts in DSEC marginally explained some changes in dietary intakes (e.g. increased diet quality), while the changes that remained unexplained were of opposite sign, with decreased diet quality, lower fruits, tubers and fish intakes and higher energy provided by ultra-processed foods. CONCLUSION: Explained dietary changes were of opposite sign to nutrition transition conceptual framework, probably because unobserved drivers are in play, such as food price trends or supermarkets spread.

4.
Adv Nutr ; 12(5): 1659-1672, 2021 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-33684194

RESUMO

Dietary diversity has long been recognized as a key component of diet quality and many dietary diversity indicators (DDIs) have been developed. This systematic scoping review aimed to present a comprehensive inventory of DDIs and summarize evidence linking DDIs and dietary adequacy or health outcomes in adolescents and adults. Two search strategies were developed to identify peer-reviewed articles published in English up until June 2018 and were applied to Medline, Web of Science, and Scopus. A 2-stage screening process was used to select the studies to be reviewed. Four types of DDIs were identified among 161 articles, the majority of them belonging to the food group-based indicator type (n = 106 articles). Fifty studies indicated that DDIs were proxies of nutrient adequacy, but there was a lack of evidence about their relation with nutrients to limit. Associations between DDIs and health outcomes were largely inconsistent among 137 studies, especially when the outcomes studied were body weight (n = 60) and noncommunicable diseases (n = 41). We conclude that the ability of DDIs to reflect diet quality was found to be principally limited to micronutrient adequacy and that DDIs do not readily relate to health outcomes. These findings have implications for studies in low- and lower-middle-income economies where DDIs are often used to assess dietary patterns and overall diet quality.


Assuntos
Dieta , Ingestão de Alimentos , Adolescente , Inquéritos sobre Dietas , Humanos , Renda , Micronutrientes
5.
PLoS Med ; 17(11): e1003388, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-33201927

RESUMO

BACKGROUND: In 2014, the government of Togo implemented a pilot unconditional cash transfer (UCT) program in rural villages that aimed at improving children's nutrition, health, and protection. It combined monthly UCTs (approximately US$8.40 /month) with a package of community activities (including behavior change communication [BCC] sessions, home visits, and integrated community case management of childhood illnesses and acute malnutrition [ICCM-Nut]) delivered to mother-child pairs during the first "1,000 days" of life. We primarily investigated program impact at population level on children's height-for-age z-scores (HAZs) and secondarily on stunting (HAZ < -2) and intermediary outcomes including household's food insecurity, mother-child pairs' diet and health, delivery in a health facility and low birth weight (LBW), women's knowledge, and physical intimate partner violence (IPV). METHODS AND FINDINGS: We implemented a parallel-cluster-randomized controlled trial, in which 162 villages were randomized into either an intervention arm (UCTs + package of community activities, n = 82) or a control arm (package of community activities only, n = 80). Two different representative samples of children aged 6-29 months and their mothers were surveyed in each arm, one before the intervention in 2014 (control: n = 1,301, intervention: n = 1,357), the other 2 years afterwards in 2016 (control: n = 996, intervention: n = 1,035). Difference-in-differences (DD) estimates of impact were calculated, adjusting for clustering. Children's average age was 17.4 (± 0.24 SE) months in the control arm and 17.6 (± 0.19 SE) months in the intervention arm at baseline. UCTs had a protective effect on HAZ (DD = +0.25 z-scores, 95% confidence interval [CI]: 0.01-0.50, p = 0.039), which deteriorated in the control arm while remaining stable in the intervention arm, but had no impact on stunting (DD = -6.2 percentage points [pp], relative odds ratio [ROR]: 0.74, 95% CI: 0.51-1.06, p = 0.097). UCTs positively impacted both mothers' and children's (18-23 months) consumption of animal source foods (ASFs) (respectively, DD = +4.5 pp, ROR: 2.24, 95% CI: 1.09-4.61, p = 0.029 and DD = +9.1 pp, ROR: 2.65, 95% CI: 1.01-6.98, p = 0.048) and household food insecurity (DD = -10.7 pp, ROR: 0.63, 95% CI: 0.43-0.91, p = 0.016). UCTs did not impact on reported child morbidity 2 week's prior to report (DD = -3.5 pp, ROR: 0.80, 95% CI: 0.56-1.14, p = 0.214) but reduced the financial barrier to seeking healthcare for sick children (DD = -26.4 pp, ROR: 0.23, 95% CI: 0.08-0.66, p = 0.006). Women who received cash had higher odds of delivering in a health facility (DD = +10.6 pp, ROR: 1.53, 95% CI: 1.10-2.13, p = 0.012) and lower odds of giving birth to babies with birth weights (BWs) <2,500 g (DD = -11.8, ROR: 0.29, 95% CI: 0.10-0.82, p = 0.020). Positive effects were also found on women's knowledge (DD = +14.8, ROR: 1.86, 95% CI: 1.32-2.62, p < 0.001) and physical IPV (DD = -7.9 pp, ROR: 0.60, 95% CI: 0.36-0.99, p = 0.048). Study limitations included the short evaluation period (24 months) and the low coverage of UCTs, which might have reduced the program's impact. CONCLUSIONS: UCTs targeting the first "1,000 days" had a protective effect on child's linear growth in rural areas of Togo. Their simultaneous positive effects on various immediate, underlying, and basic causes of malnutrition certainly contributed to this ultimate impact. The positive impacts observed on pregnancy- and birth-related outcomes call for further attention to the conception period in nutrition-sensitive programs. TRIAL REGISTRATION: ISRCTN Registry ISRCTN83330970.


Assuntos
Abastecimento de Alimentos/economia , Violência por Parceiro Íntimo/prevenção & controle , Desnutrição/epidemiologia , Estado Nutricional/fisiologia , Adulto , Criança , Pré-Escolar , Participação da Comunidade/estatística & dados numéricos , Países em Desenvolvimento/economia , Dieta/estatística & dados numéricos , Feminino , Abastecimento de Alimentos/métodos , Humanos , Lactente , Violência por Parceiro Íntimo/economia , Masculino , Mães/psicologia , Gravidez , População Rural/estatística & dados numéricos , Togo
6.
BMC Public Health ; 19(1): 1620, 2019 Dec 03.
Artigo em Inglês | MEDLINE | ID: mdl-31795991

RESUMO

BACKGROUND: Obesity and metabolic diseases represent a major health burden in the Caribbean, particularly since a large part of the population is disadvantaged. However, socioeconomic inequalities in chronic diseases are poorly explored in this region. We investigated the association between socioeconomic position and metabolic syndrome (MetS) prevalence and explored the contribution of diet quality to explain this association, among adults in the French West Indies. METHODS: This cross-sectional analysis included 1144 subjects (≥16 y) from a multistage sampling survey conducted in 2013-2014 on a representative sample of the Guadeloupean and Martinican population. MetS prevalence was assessed using the Joint Interim Statement. Dietary intakes were estimated from 24 h-dietary recalls, and diet quality was assessed through the Diet Quality Index-International (DQI-I). Associations between socioeconomic indicators (education, employment, social assistance benefits) and MetS prevalence, and the potential contribution of diet quality in this association were assessed using multivariable logistic regression models, adjusted for sociodemographic characteristics. RESULTS: MetS prevalence adjusted for age and sex was 21 and 30% among Guadeloupean and Martinican, respectively. Compared to high-educated participants, low-educated subjects were more likely to be at risk of MetS (OR = 2.4; 95%CI = [1.3-4.4], respectively), as were recipients of social assistance benefits compared to non-recipients (OR = 2.0; 95%CI = [1.0-4.0]). The DQI-I explained 10.5% of the overall variation in MetS due to education. CONCLUSIONS: Socioeconomic inequalities in MetS prevalence, reflected by education and social assistance benefits, were found. However, diet quality contributed only to socioeconomic inequalities due to education underlining that education may impact health through the ability to generate overall dietary behavior, long-term beneficial. Our work identified subgroups with higher risk of MetS, which is needed when implementing public health measures, particularly in this Caribbean population with of high poverty rates. Further prospective studies are needed to improve our understanding of the mechanisms of social inequalities in MetS in a high poverty rates context.


Assuntos
Dieta/estatística & dados numéricos , Disparidades nos Níveis de Saúde , Síndrome Metabólica/epidemiologia , Fatores Socioeconômicos , Adulto , Estudos Transversais , Dieta/efeitos adversos , Inquéritos sobre Dietas , Feminino , Humanos , Modelos Logísticos , Masculino , Síndrome Metabólica/etiologia , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Índias Ocidentais/epidemiologia
7.
Curr Dev Nutr ; 3(9): nzz084, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31528837

RESUMO

BACKGROUND: The program "Santé Nutritionnelle à Assise Communautaire à Kayes" (SNACK) in Mali aimed to improve child linear growth through a set of interventions targeted to mothers and children during pregnancy and up to the child's second birthday. Distributions of cash to mothers and/or lipid-based nutrient supplement to children 6-23 mo of age were added to SNACK to increase attendance at community health centers (CHCs). OBJECTIVES: The aim of this study, which was embedded in a cluster-randomized impact evaluation of the program, was to assess the incentive value of the cash in relation to CHC attendance. METHODS: We used a mixed-methods approach. We collected quantitative data on cash receipt and CHC attendance in a midline survey of mother-child pairs (n = 3443). A program impact pathway analysis guided qualitative data collection and analysis. Twelve CHCs were purposively selected in study groups that received cash. We conducted semistructured continuous observations of cash distributions in 11 CHCs (n = 22) and semistructured qualitative interviews with frontline workers (FLWs) (n = 71) and mothers (n = 22) who were purposively selected from the midline survey. RESULTS: FLWs' knowledge of the objective and implementation plan of the cash program component was limited. A challenging physical environment and insufficient cash available for each distribution were identified as causes of irregularities in cash distributions. Most mothers mentioned having to return several times to receive their cash. Child health was identified as the main motivation to attend CHCs and cash was described as an additional benefit. CONCLUSION: Implementation constraints related to remoteness and inaccessibility may have undermined the incentive value of the cash transfers in the SNACK program. Additional research is needed to identify interventions that not only incentivize mothers to participate but that can be implemented effectively and with high quality in challenging contexts such as rural areas of Mali.

8.
Matern Child Nutr ; 14(1)2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28464499

RESUMO

Women of reproductive age are at nutritional risk due to their need for nutrient-dense diets. Risk is further elevated in resource-poor environments. In one such environment, we evaluated feasibility of meeting micronutrient needs of women of reproductive age using local foods alone or using local foods and supplements, while minimizing cost. Based on dietary recall data from Ouagadougou, we used linear programming to identify the lowest cost options for meeting 10 micronutrient intake recommendations, while also meeting energy needs and following an acceptable macronutrient intake pattern. We modeled scenarios with maximum intake per food item constrained at the 75th percentile of reported intake and also with more liberal maxima based on recommended portions per day, with and without the addition of supplements. Some scenarios allowed only commonly consumed foods (reported on at least 10% of recall days). We modeled separately for pregnant, lactating, and nonpregnant, nonlactating women. With maxima constrained to the 75th percentile, all micronutrient needs could be met with local foods but only when several nutrient-dense but rarely consumed items were included in daily diets. When only commonly consumed foods were allowed, micronutrient needs could not be met without supplements. When larger amounts of common animal-source foods were allowed, all needs could be met for nonpregnant, nonlactating women but not for pregnant or lactating women, without supplements. We conclude that locally available foods could meet micronutrient needs but that to achieve this, strategies would be needed to increase consistent availability in markets, consistent economic access, and demand.


Assuntos
Deficiências Nutricionais/prevenção & controle , Dieta Saudável , Abastecimento de Alimentos , Micronutrientes/uso terapêutico , Modelos Econômicos , Cooperação do Paciente , Saúde da População Urbana , Adulto , Burkina Faso/epidemiologia , Deficiências Nutricionais/economia , Deficiências Nutricionais/epidemiologia , Deficiências Nutricionais/etnologia , Países em Desenvolvimento , Dieta Saudável/economia , Dieta Saudável/etnologia , Suplementos Nutricionais/economia , Estudos de Viabilidade , Feminino , Preferências Alimentares/etnologia , Abastecimento de Alimentos/economia , Humanos , Lactação/etnologia , Fenômenos Fisiológicos da Nutrição Materna/etnologia , Micronutrientes/economia , Inquéritos Nutricionais , Cooperação do Paciente/etnologia , Gravidez , Complicações na Gravidez/economia , Complicações na Gravidez/epidemiologia , Complicações na Gravidez/etnologia , Complicações na Gravidez/prevenção & controle , Risco , Saúde da População Urbana/economia , Saúde da População Urbana/etnologia , Adulto Jovem
9.
Crit Rev Food Sci Nutr ; 58(1): 37-61, 2018 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-25486107

RESUMO

OBJECTIVE: To carry out an inventory on the availability, challenges, and needs of dietary assessment (DA) methods in Africa as a pre-requisite to provide evidence, and set directions (strategies) for implementing common dietary methods and support web-research infrastructure across countries. METHODS: The inventory was performed within the framework of the "Africa's Study on Physical Activity and Dietary Assessment Methods" (AS-PADAM) project. It involves international institutional and African networks. An inventory questionnaire was developed and disseminated through the networks. Eighteen countries responded to the dietary inventory questionnaire. RESULTS: Various DA tools were reported in Africa; 24-Hour Dietary Recall and Food Frequency Questionnaire were the most commonly used tools. Few tools were validated and tested for reliability. Face-to-face interview was the common method of administration. No computerized software or other new (web) technologies were reported. No tools were standardized across countries. CONCLUSIONS: The lack of comparable DA methods across represented countries is a major obstacle to implement comprehensive and joint nutrition-related programmes for surveillance, programme evaluation, research, and prevention. There is a need to develop new or adapt existing DA methods across countries by employing related research infrastructure that has been validated and standardized in other settings, with the view to standardizing methods for wider use.


Assuntos
Dieta , Avaliação Nutricional , Distúrbios Nutricionais/prevenção & controle , África , Registros de Dieta , Inquéritos sobre Dietas/métodos , Inquéritos sobre Dietas/normas , Exercício Físico , Humanos , Rememoração Mental , Política Nutricional , Estado Nutricional , Reprodutibilidade dos Testes , Projetos de Pesquisa/normas , Software , Inquéritos e Questionários
10.
Health Policy Plan ; 31(5): 573-81, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26515693

RESUMO

The 2007/2008 food prices hike has increased the interest in social safety nets programmes to fight food insecurity. Targeting the most in need is central to achieve effectiveness of such interventions. In 2009 in Ouagadougou, Burkina Faso, a food voucher (FV) programme targeted the 25 000 most vulnerable households (8.3% of the population). Targeting used a two-stage process: first geographical selection of poorest districts (∼90 000 households); then, in those districts, identification of the most vulnerable households according to a proxy-means test (PMT). Targeted households were entitled to receive FV for 1 year. A first survey was conducted at the beginning of the FV distribution on a representative sample of 2273 households drawn from the poorest districts. One year later a second survey, conducted on a subsample of same households (n = 901), identified those who actually received FV (beneficiary). The performance of the whole process was assessed against household food expenditure, used as the reference measure for vulnerability with a cut-off point of 1513 FCFA (corresponding to the 8.3th percentile of the distribution of expenditure). The 'normalized share of transfers going to vulnerable households' (NSTVH), i.e. proportion of FVs allocated to households below the cut-point, was the main criteria of judgement. Almost twice as many FV were allocated to vulnerable households as compared with a theoretical random distribution all over Ouagadougou (NSTVH = 1.85). When considering the sole targeted districts the NSTVH was only 0.84 (i.e. no more effective than a random distribution), meaning that the geographical stage was effective to select vulnerable districts while the PMT did not perform well to identify the most vulnerable households in those districts. Results could have been improved if only targeted households had received FV (NSTVH = 2.61 and 1.18 for the whole Ouagadougou and targeted districts, respectively). Improved targeting procedures or alternate targeting instruments are needed.


Assuntos
Características da Família , Abastecimento de Alimentos , Pobreza , População Urbana , Burkina Faso , Comércio , Gastos em Saúde , Humanos
11.
Popul Health Metr ; 13: 1, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25745363

RESUMO

BACKGROUND: Most assessments of the burden of obesity in nutrition transition contexts rely on body mass index (BMI) only, even though abdominal adiposity might be specifically predictive of adverse health outcomes. In Tunisia, a typical country of the Middle East and North Africa (MENA) region, where the burden of obesity is especially high among women, we compared female abdominal vs. overall obesity and its geographic and socio-economic cofactors, both at population and within-subject levels. METHODS: The cross-sectional study used a stratified, three-level, clustered sample of 35- to 70-year-old women (n = 2,964). Overall obesity was BMI = weight/height(2) ≥ 30 kg/m(2) and abdominal obesity waist circumference ≥ 88 cm. We quantified the burden of obesity for overall and abdominal obesity separately and their association with place of residence (urban/rural, the seven regions that compose Tunisia), plus physiological and socio-economic cofactors by logistic regression. We studied the within-subject concordance of the two obesities and estimated the prevalence of subject-level "abdominal-only" obesity (AO) and "overall-only" obesity (OO) and assessed relationships with the cofactors by multinomial logistic regression. RESULTS: Abdominal obesity was much more prevalent (60.4% [57.7-63.0]) than overall obesity (37.0% [34.5-39.6]), due to a high proportion of AO status (25.0% [22.8-27.1]), while the proportion of OO was small (1.6% [1.1-2.2]). We found mostly similar associations between abdominal and overall obesity and all the cofactors except that the regional variability of abdominal obesity was much larger than that of overall obesity. There were no adjusted associations of AO status with urban/rural area of residence (P = 0.21), education (P = 0.97) or household welfare level (P = 0.94) and only non-menopausal women (P = 0.093), lower parity women (P = 0.061) or worker/employees (P = 0.038) were somewhat less likely to be AO. However, there was a large residual adjusted regional variability of AO status (from 16.6% to 34.1%, adjusted P < 0.0001), possibly of genetic, epigenetic, or developmental origins. CONCLUSION: Measures of abdominal adiposity need to be included in population-level appraisals of the burden of obesity, especially among women in the MENA region. The causes of the highly prevalent abdominal-only obesity status among women require further investigation.

12.
PLoS One ; 8(10): e75640, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24116063

RESUMO

INTRODUCTION: The epidemiological transition has resulted in a major increase in the prevalence of obesity in North Africa. This study investigated differences in obesity and its association with area of residence, gender and socio-economic position among adults in Algeria and Tunisia, two countries with socio-economic and socio-cultural similarities. METHODS: Cross-sectional studies used stratified, three-level, clustered samples of 35-70 year old adults in Algeria, (women n = 2741, men n = 2004) and Tunisia (women n = 2964, men n = 2379). Thinness was defined as Body Mass Index (BMI) = weight/height <18.5 kg/m(2), obesity as BMI ≥30, and abdominal obesity as waist circumference/height ≥0.6. Associations with area of residence, gender, age, education, profession and household welfare were assessed. RESULTS: Prevalence of thinness was very low except among men in Algeria (7.3% C.I.[5.9-8.7]). Prevalence of obesity among women was high in Algeria (30.1% C.I.[27.8-32.4]) and Tunisia (37.0% C.I.[34.4-39.6]). It was less so among men (9.1% C.I.[7.1-11.0] and 13.3% C.I.[11.2-15.4]).The results were similar for abdominal obesity. In both countries women were much more obesity-prone than men: the women versus men obesity Odds-Ratio was 4.3 C.I.[3.4-5.5] in Algeria and 3.8 C.I.[3.1-4.7] in Tunisia. Obesity was more prevalent in urban versus rural areas in Tunisia, but not in Algeria (e.g. for women, urban versus rural Odds-Ratio was 2.4 C.I.[1.9-3.1] in Tunisia and only 1.2 C.I.[1.0-5.5] in Algeria). Obesity increased with household welfare, but more markedly in Tunisia, especially among women. Nevertheless, in both countries, even in the lowest quintile of welfare, a fifth of the women were obese. CONCLUSION: The prevention of obesity, especially in women, is a public health issue in both countries, but there were differences in the patterning of obesity according to area of residence and socio-economic position. These specificities must be taken into account in the management of obesity inequalities.


Assuntos
Obesidade/epidemiologia , Magreza/epidemiologia , Adulto , Idoso , Argélia/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade/etiologia , Prevalência , Fatores de Risco , População Rural , Fatores Sexuais , Fatores Socioeconômicos , Magreza/etiologia , Tunísia/epidemiologia , População Urbana
13.
Food Nutr Bull ; 34(3): 318-30, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24167912

RESUMO

BACKGROUND: The technical and resource demands of the most precise dietary assessment methods, 24-hour recall and observed-weighed food records, have proven impractical for most low- and middle-income countries, leaving nutrition policymakers with a woefully inadequate evidence base and compromising nutrition program effectiveness. OBJECTIVE: To better understand the relative costs of informing food and nutrition policy-making using two different data sources: 24-hour recall survey data and Household Consumption and Expenditures Survey (HCES) data. METHODS: A comparative analysis of the costs of designing, implementing, and analyzing a 24-hour recall survey and the cost of secondary analysis of HCES data. RESULTS: The cost of conducting a 24-hour recall survey with a sample of the size typical of HCES would be roughly 75 times higher than the cost of analyzing the HCES data. CONCLUSIONS: Although the 24-hour recall method is undoubtedly more precise, it has become self-evident that the practical choice for most countries is not between these two surveys, but between having data from less precise, but much more readily available and affordable HCES or having no nationally representative data. In the light of growing concerns about inappropriate fortification policies developed without data, there is an urgent need to begin working to strengthen HCES to provide more precise food and nutrition data. The best way forward is not likely to rest with one data source or another, but with the development of an eclectic approach that exploits the strengths and weaknesses of alternative surveys and uses them to complement one another.


Assuntos
Registros de Dieta , Alimentos/economia , Alimentos/estatística & dados numéricos , Inquéritos Nutricionais/economia , Inquéritos Nutricionais/métodos , Projetos de Pesquisa/estatística & dados numéricos , Humanos , Internacionalidade
15.
J Nutr ; 142(9): 1748-55, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22833656

RESUMO

Although the 2008 food price crisis presumably plunged millions of households into poverty and food insecurity, the real impact of the crisis has rarely been documented using field data. Our objective was to assess the consequences of this crisis for household food insecurity and dietary diversity in urban Burkina Faso. Two cross-sectional surveys were conducted among randomly selected households in Ouagadougou in July 2007 (n = 3017) and July 2008 (n = 3002). At each round, food insecurity assessed by the Household Food Insecurity Access Scale (HFIAS), the Dietary Diversity Score of an index-member of the household (IDDS = number of food groups consumed in the last 24 h), and food expenditure were collected. Food prices of the 17 most frequently consumed food items were recorded throughout the study area. Food prices at local markets increased considerably between 2007 and 2008, especially those of fish (113%), cereals (53%), and vegetable oil (44%), increasing the household monthly food expenditure by 18%. Thirty-three percent of households were food secure in 2007 and 22% in 2008 (P = 0.02). Individuals consumed fewer fruits and vegetables, dairy products, and meat/poultry in 2008 than in 2007 (mean IDDS = 5.7 ± 1.7 food groups in 2007 vs. 5.2 ± 1.5 in 2008; P < 0.0001). Differences in IDDS and HFIAS between the 2 y were even more marked after adjustment for confounding factors and food expenditure. Food security and dietary diversity significantly decreased between 2007 and 2008, whereas food prices increased. Households increased their food expenditure, but this was not sufficient to compensate the effects of the crisis.


Assuntos
Economia/estatística & dados numéricos , Abastecimento de Alimentos/economia , Abastecimento de Alimentos/estatística & dados numéricos , Adulto , Burkina Faso/epidemiologia , Estudos Transversais , Laticínios , Recessão Econômica/estatística & dados numéricos , Características da Família , Comportamento Alimentar , Feminino , Frutas , Humanos , Masculino , Carne , Pessoa de Meia-Idade , População Urbana/estatística & dados numéricos , Verduras
16.
Br J Nutr ; 107(12): 1860-70, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22017887

RESUMO

Food insecurity is affecting an increasing number of urban poor in the developing world. Yet seasonal characteristics of food intakes have rarely been studied in West African cities. The objective of the present study was to assess the seasonality of the dietary dimension of household food security in Ouagadougou (Burkina Faso). In 2007, two sets of data were collected during the lean and post-harvest seasons, respectively, on a representative sample of 1056 households. At each season, two non-consecutive 24 h recalls were performed at the household level. Food prices were also recorded. Household food security was assessed by the household's mean adequacy ratio (MAR) for energy and eleven micronutrients. Changes in the MAR according to the season were analysed by mixed multivariate linear regression. Results showed that intakes of energy and of ten micronutrients were significantly lower during the lean season than during the post-harvest season, leading to a lower MAR in the lean season (49·61 v. 53·57, P < 0·0001). This was related to less frequent consumption and consumption of smaller amounts of vegetables and of foods prepared at home. Food security relied heavily on food expenses (P < 0·0001) and on the price of meat/fish (P = 0·026). Households with economically dependent adults (P = 0·021) and larger households (P < 0·0001) were the most vulnerable, whereas education (P = 0·030), social network (P = 0·054) and urban origin other than Ouagadougou (P = 0·040) played a positive role in food security. To achieve food security in Ouagadougou, access to micronutrient-dense foods needs to be ensured in all seasons.


Assuntos
Dieta , Ingestão de Energia , Características da Família , Abastecimento de Alimentos , Micronutrientes/administração & dosagem , Pobreza , Estações do Ano , Adulto , Burkina Faso , Criança , Cidades , Comércio , Países em Desenvolvimento , Dieta/economia , Escolaridade , Comportamento Alimentar , Manipulação de Alimentos/economia , Abastecimento de Alimentos/economia , Humanos , Modelos Lineares , Carne/economia , Micronutrientes/economia , Análise Multivariada , Apoio Social , População Urbana
17.
Am J Clin Nutr ; 87(5): 1472-9, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18469273

RESUMO

BACKGROUND: Previous studies investigating the association between an infant and child feeding index (ICFI) and length-for-age were based on a cross-sectional design and on the assumption that data collected with brief recalls could provide information about more enduring processes. OBJECTIVES: The objectives were to test the stability of the individual ICFI values over time and to investigate how they relate to length-for-age z score (LAZ) and weight-for-length z score (WLZ) at the end of the study. DESIGN: This prospective cohort study included 363 children aged 6-17 mo who were visited 3 times over 6 mo. A cross-sectional ICFI (CS-ICFI) was constructed for each visit by using data on feeding practices and data from quantitative 24-h recalls. A longitudinal ICFI (L-ICFI) was constructed with use of the 3 CS-ICFIs. The stability of the CS-ICFI was assessed by using the variance of the repeatability coefficient (s(2)r). RESULTS: Stability of the CS-ICFI was shown by the value of 0.704 (95% CI: 0.625, 0.805) of the s(2)r, which differed significantly from 1 (P < 0.0001). There was no significant association between the CS-ICFIs and LAZ or WLZ at visit 3. In contrast, when moving from low to high L-ICFI, there was a highly significant 0.5 z score difference in mean LAZ at visit 3 (P = 0.0008). The L-ICFI was not associated with WLZ. CONCLUSIONS: The ICFI constructed by using data collected with brief recalls can provide information about feeding in the long term. However, the absence of association with LAZ suggests a lack of precision that can be reduced by using an ICFI based on repeated measurements.


Assuntos
Estatura/fisiologia , Peso Corporal/fisiologia , Crescimento , Fenômenos Fisiológicos da Nutrição do Lactente/fisiologia , Estado Nutricional , Alimentação com Mamadeira/estatística & dados numéricos , Aleitamento Materno/epidemiologia , Aleitamento Materno/estatística & dados numéricos , Estudos de Coortes , Comportamento Alimentar , Feminino , Humanos , Lactente , Alimentos Infantis , Madagáscar , Masculino , Idade Materna , Avaliação Nutricional , Estudos Prospectivos , Sensibilidade e Especificidade , Fatores Socioeconômicos , Fatores de Tempo , População Urbana
18.
J Nutr ; 136(10): 2625-32, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16988137

RESUMO

In developing countries, dietary diversity is usually assessed during a single yearly period and the effects of seasonal variations remain unknown. We studied these variations in women living in a Sahelian rural area (Burkina Faso). A representative sample of 550 women was surveyed at the beginning and at the end of the seasonal cereal shortage in April and September 2003, respectively. For each season, a dietary diversity score (DDS) representing the number of food groups consumed over a 24-h period, was computed and nutritional status was assessed by the BMI. The DDS increased from 3.4 +/- 1.1 to 3.8 +/- 1.5 food groups between the beginning and the end of the shortage season (P < 0.0001), and the proportion of women exhibiting low DDS decreased from 31.6 to 8.1%. This was due to the consumption of foods available during the cereal shortage season and despite the decrease in the consumption of some purchased foods. The increase in DDS was lower in women for whom DDS was already high in April and vice versa. Over the same period, the percentage of underweight women (BMI <18.5 kg/m(2)) increased from 11.1 to 17.1%. The relation between DDS and the women's socioeconomic characteristics or nutritional status was weakened in September. Thus, in April, fewer women were underweight when their DDS was high than when it was medium or low [odds ratio = 0.3 (0.2; 0.6)], but not in September [odds ratio = 0.6 (0.3; 1.0)]. In such a context, it would be useful to measure dietary diversity at the beginning of the cereal shortage season, when many women exhibit low DDS.


Assuntos
Dieta , Abastecimento de Alimentos , Estado Nutricional , População Rural , Estações do Ano , Adulto , Antropometria , Índice de Massa Corporal , Burkina Faso , Grão Comestível , Feminino , Humanos , Fatores Socioeconômicos
19.
J Nutr ; 136(3): 656-63, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16484539

RESUMO

The measurement of child feeding practices is complex and the relation between the quality of feeding and children's nutritional status is difficult to establish. We examined this relation in rural Burkina Faso, West Africa, using an adapted version of the Infant and Child Feeding Index (ICFI). A cross-sectional study was conducted on a random sample of children (n = 2466) aged 6-35 mo in 2002. Feeding practices were assessed through a qualitative 24-h recall. ICFIs were made age specific for children aged 6-11 mo (n = 614), 12-23 mo (n = 987), 24-35 mo (n = 865), and were divided into terciles. The association between height-for-age Z-scores (HAZ), weight-for-height Z-scores (WHZ), and ICFIs were examined separately in each age group. Multivariate analyses were performed to control for sociodemographic and economic factors. Adjusted mean HAZ in low, medium, and high categories of ICFI were, respectively, -1.67, -1.53, and -1.21 (P = 0.003) among children aged 6-11 mo; -2.54, -2.24, and -2.11 (P = 0.0002) among children aged 12-23 mo; and -2.18, -2.20, and -2.45 (P = 0.05) among children aged 24-35 mo. There was also a positive association between ICFI and WHZ in children aged 12-23 mo (P = 0.05) but a negative association in children aged 6-11 mo (P = 0.02). Among the components of ICFI, dietary diversity or variety scores and frequency of meals or snacks supported the positive associations with anthropometric indices, except for WHZ in children aged 6-11 mo, whereas breast-feeding exhibited a reverse association among older children. A suitable ICFI and/or some of its components could be used to identify vulnerable age groups and to monitor interventions in similar rural areas of Africa.


Assuntos
Comportamento Alimentar , Alimentos Infantis , Adulto , Aleitamento Materno/estatística & dados numéricos , Burkina Faso , Escolaridade , Habitação , Humanos , Lactente , Mães , Saúde da População Rural , Fatores Socioeconômicos
20.
J Health Popul Nutr ; 22(1): 59-67, 2004 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15190813

RESUMO

In 1996, the Government of the Republic of Congo launched a pilot project to improve the child growth and development component of primary healthcare. The present study was carried out (i) to explore perceptions and practices of mothers and health workers regarding child growth, health, and development, and (ii) to design culturally-appropriate tools to enhance their monitoring and promotion. The study was carried out in two randomly-selected health centres in Brazzaville. Qualitative data collected included 16 focus-group discussions with 174 mothers, two focus-group discussions with 18 health workers, and 20 individual interviews with paediatricians or psychologists. The health workers reported that the main indicator of child growth was weight, while the mothers used broader concepts for evaluating growth and development of their toddlers. A strategy encompassing anthropometrics, developmental milestones, and acquisition of social skills was elaborated to enhance communication between health workers and mothers. A new growth chart was designed, and a new calendar of systematic visits, including key tasks and messages, was established. However, these new tools derived from the formative research still need to be carefully tested.


Assuntos
Desenvolvimento Infantil , Serviços de Saúde da Criança , Fenômenos Fisiológicos da Nutrição Infantil , Crescimento/fisiologia , Mães/psicologia , Estatura , Pré-Escolar , Congo , Feminino , Grupos Focais , Conhecimentos, Atitudes e Prática em Saúde , Promoção da Saúde , Humanos , Lactente , Masculino
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