An adapted version of the U.S. Department of Agriculture Food Insecurity module is a valid tool for assessing household food insecurity in Campinas, Brazil

Food insecurity and perceived stress but not HIV infection are independently associated with lower energy intakes among lactating Ghanaian women

Human immunodeficiency virus (HIV) seropositive women living in low-income communities may have difficulty meeting the increased energy requirements that are associated with both lactation and HIV infection. Data on household food security and maternal socio-demographic characteristics, perceived stress, anthropometry, reported illness, dietary intakes and preferences, and exposure to nutrition education were collected from 70 lactating women [16 seropositive (HP), 27 seronegative (HN), and 27 who refused to be tested and had unknown HIV status (HU)]. Diet was assessed with three 24-h recalls (one market day, one weekend day, and one non-market weekday). Data were collected at 8.4 (SD = 4.7) months postpartum. Most women (74.3%) reported being in good health at the time of study. Three-day mean energy intakes did not differ by HIV status [HP: 12,000 kJ (SD = 3600), HN: 12,600 kJ (SD = 5100), and HU: 12,300 kJ (SD = 4800); P = 0.94]. Protein, fat, vitamin A, thiamin, riboflavin, niacin, vitamin C, calcium, iron, and zinc intakes also did not differ by group (P > 0.10). There was a higher proportion of women with high stress levels in food insecure households compared with food secure households (55.6% vs. 26.5%; P = 0.01). Energy intake was independently negatively associated with food insecurity [high: 11,300 kJ (SD = 3500) vs. low: 13,400 kJ (SD = 5400), respectively; P = 0.050] and stress [high: 10,800 kJ (SD = 2800) vs. low: 13,400 kJ (SD = 5300), P = 0.021]. These results suggest the need to integrate multi-dimensional interventions that address economic and mental health constraints which may limit some women's ability to meet their dietary needs.

Factors associated with dietary patterns among low-income adults

OBJECTIVE

To describe the association of socio-economic, demographic and lifestyle characteristics with three eating patterns identified among low-income adults living in the Rio de Janeiro metropolitan area, Brazil.

DESIGN

Data were obtained in a population-based cross-sectional study. The analysed patterns were: (i) 'Mixed', in which diverse foods had similar factor loadings; (ii) 'Western', which included items with high energy density; and (iii) 'Traditional', which relied in rice and beans, traditional staple foods in Brazil. Hierarchical logistic analysis was performed to estimate the association between the independent variables and each one of the dietary patterns. The variables that presented statistical significance <0·20 in the univariate analysis (χ2 test) were included in the multivariate models.

SETTING

Duque de Caxias, a low-income area in the Rio de Janeiro metropolitan region, Brazil.

SUBJECTS

Adults (n 1009) aged 20 to 65 years (339 men and 670 women).

RESULTS

The 'Mixed' pattern was positively associated with smoking (OR = 1·58, 95 % CI 1·00, 2·48 for current smoking v. those who never smoked). The 'Western' pattern was positively associated with family income (OR = 3·00, 95 % CI 1·81, 4·97 for those with monthly per capita family income ≥1·0 v. <0·5 times the official Brazilian minimum wage) and inversely associated with family food insecurity (OR = 0·55, 95 % CI 0·36, 0·84). The 'Traditional' pattern was associated with family food insecurity (OR = 1·79, 95 % CI 1·27, 2·51).

CONCLUSIONS

The results support previous findings relating improvement in economic conditions to reduced adherence to the traditional Brazilian food consumption pattern based on the combination of rice and beans.

Household Food Insecurity and Nutritional Status of Children Aged 6 to 23 Months in Kailali District of Nepal

Background

Food insecurity and malnutrition among children are common in Nepal. However, inadequate data exist on the association between household food insecurity and the nutritional status of children.

Objective

To assess the relationship between household food insecurity and malnutrition among children aged 6 to 23 months in Kailali District of Nepal.

Methods

We analyzed data from families of 368 children 6 to 23 months of age who completed a cross-sectional survey in January 2009. The data contained information on sociodemographic characteristics, food insecurity, child feeding practices, use of preventive health services, and height, weight, and hemoglobin levels of children and mothers.

Results

More than two-thirds (69%) of households were classified as food insecure (had insufficient access to adequate food). The prevalence rates of stunting, underweight, and wasting among children were 41%, 24%, and 9%, respectively. The prevalence of anemia was 58%. There were no significant associations between household food insecurity and stunting, underweight, or anemia. Stunting and underweight were associated with maternal height and household wealth ( p < .05). Underweight was also associated with maternal education ( p < .05). Anemia was associated with low maternal hemoglobin concentration ( p < .05).

Conclusions

Food insecurity was common in households with children 6 to 23 months of age in Kailali District of Nepal. The rates of stunting, underweight, wasting, and anemia were also high. However, there was no significant association between household food insecurity and malnutrition among children. Therefore, not just access to food, but an integrated approach that improves the overall socioeconomic well-being of families, maternal education, and knowledge of optimal nutrition practices, together with adequate maternal nutrition, is needed to address malnutrition among young children.

Changes in food consumption among the Programa Bolsa Família participant families in Brazil

OBJECTIVE

To analyse changes and predictors of change in self-reported food intake among Brazilian families that benefitted from conditional cash transfer (CCT) implemented in the Programa Bolsa Família of the Brazilian Federal Government.

DESIGN

A cross-sectional survey.

SETTING

The study was conducted from September to October 2007 in a nationwide representative household sample of families included in the CCT. Socio-economic variables, perception of food consumption and food insecurity were evaluated via questionnaire, which was completed during face-to-face interviews.

SUBJECTS

Five thousand households were selected from the CCT registry.

RESULTS

Families reported increased consumption of all food groups analysed, mainly cereals, processed foods, meat, milk and dairy, beans and sugar. The degree of dependence on income from the CCT was positively associated with increased self-reported intake of food items such as sugar and soft drinks. A Poisson regression revealed that the fourth quartile of CCT dependence demonstrated a twofold increase in the self-reported intake of soft drinks (relative risk (RR) = 2·3, 95% CI 1·8, 2·9) and sugar (RR = 2·5, 95% CI 2·1, 3·1) compared with the first quartile of CCT dependence.

CONCLUSIONS

Greater purchasing power of poor families increases unhealthy food choices; thus public policies should emphasise the availability of healthy food.

Anemia, hipovitaminose A e insegurança alimentar em crianças de municípios de Baixo Índice de Desenvolvimento Humano do Nordeste do Brasil

Determinar a prevalência de anemia e hipovitaminose A e analisar a associação da (in)segurança alimentar com os níveis de hemoglobina e retinol sérico de menores de 5 anos. Estudo transversal, realizado com 501 e 458 famílias em Gameleira e São João do Tigre, respectivamente. A avaliação da (in)segurança alimentar foi realizada através da Escala Brasileira de Insegurança Alimentar. Os níveis de hemoglobina e retinol sérico foram classificados de acordo com a OMS. Foram analisadas as associações com os indicadores socioeconômicos, habitação e biológicos sobre os níveis de hemoglobina e retinol sérico. As prevalências de anemia e hipovitaminose A foram mais elevadas em Gameleira quando comparadas com São João do Tigre. A (in)segurança alimentar moderada e grave das famílias foi de 75% em Gameleira e 64% em São João do Tigre. Na análise de regressão para os níveis de hemoglobina em Gameleira foram identificadas como significantes: escolaridade materna, renda familiar per capita, não possuir TV colorida, água de consumo sem tratamento, piso de barro e idade abaixo de 24 meses, enquanto para São João do Tigre o modelo final ficou resumido à falta de motocicleta e idade da criança. Quanto aos teores de retinol sérico, o modelo final de variáveis associadas ficou sendo renda per capita e sexo para Gameleira, e ausência de telefone celular e de esgotamento sanitário para São João do Tigre. A situação nutricional dessas populações, com prevalências semelhantes de insegurança alimentar, pode apresentar grandes diferenciações, sobretudo na prevalência de carências nutricionais específicas, especialmente, em relação aos fatores determinantes.

Sources of variation in energy and nutrient intakes among children from six to thirty months old in a population-based study

The objective of this article was to describe and analyze sources of variation in the dietary intakes of children aged 6 to 30 months. The data was obtained from two 24-hour recall surveys of a sample of 383 children of both sexes in the metropolitan region of Rio de Janeiro, Brazil. Age and the food insecurity scale, which was used as a proxy to characterize socioeconomic differences, were considered. The analysis was based on food groups. The ratio of the coefficients' variation was calculated, and the crude and de-attenuated relative means for energy and macro- and micronutrients were estimated. In addition, the number of 24-hour recall replications was also estimated. Age and food insecurity had significant impacts on the average number of servings of food groups. The coefficients of variation ratios for most nutrients were < 1, except for vitamin C and for children in the younger age group. The number of 24-hour recall required ranged from 1 to 6 days and was higher for vitamin C.

Insegurança alimentar e estado nutricional de crianças de Gameleira, zona da mata do Nordeste brasileiro

OBJETIVOS: analisar a associação entre a insegurança alimentar das famílias e estado nutricional de menores de cinco anos. MÉTODOS: estudo transversal, de 501 famílias com 697 menores de cinco anos, no município da Gameleira, Pernambuco. A avaliação da (in)segurança alimentar foi realizada através da Escala Brasileira de Insegurança Alimentar (EBIA). A classificação do estado nutricional foi feita a partir dos indicadores estatura/idade, peso/idade e índice de massa corporal (IMC), utilizando o padrão de crescimento infantil da OMS. Foram estudados a associação de indicadores socioeconômicos, de insegurança alimentar e variáveis biológicas da criança sobre o índice estatura/idade, utilizando-se análise de regressão linear multivariada. RESULTADOS: a insegurança alimentar foi caracterizada em quase 90% das famílias, sendo a forma grave mais prevalente. Verificou-se uma prevalência baixa de déficit de peso pelo IMC e elevadas de déficit estatura/idade. O modelo final desta análise mostrou que as variáveis renda familiar per capita, escolaridade materna e idade da criança influenciaram significativamente o estado nutricional, entretanto, a EBIA não se associou com o estado nutricional das crianças. CONCLUSÕES: é evidente a discrepância entre a prevalência de insegurança alimentar nas famílias e a frequência baixa de desnutrição nas crianças, expressando que os dois indicadores avaliam aspectos e situações bem diferenciadas.

Access to healthy food: a key focus for research on domestic food insecurity

Geographic access to food is an important dimension of food insecurity in the US, because it affects the cost of food that low-income consumers face and the decisions they make about which foods to purchase. This symposium highlighted several recent studies that developed new techniques for characterizing the food environment, analyzed its influence on consumption and weight status, and explored alternative policy options for interventions.

Minding the immunization gap: family characteristics associated with completion rates in rural Ethiopia

To examine risk factors for lack of immunization, we tested the impact of maternal, paternal, and household variables on child immunization status in children >or =1 year in a rural area of Ethiopia. Data collected by face-to-face interview on maternal, paternal, household and child variables from cross-sectional random sample community-based study on health and well-being in rural Ethiopia was used to test hypotheses on immunization status of children (n = 924). Bivariate and multivariate logistic regression models were used for two immunization outcomes: record of at least one vaccination, and record of DPT3, indicating completion of the DPT series. Complete data were available for 924 children > or =1 year of which 79% had at least one vaccination. Of those, 64% had DPT3/Polio3; below recommended coverage level. Children were more likely to be vaccinated if the mother reported antenatal care (ANC), and less likely to be vaccinated if the mother had a history of stillbirth, and no opinion of health center. Children were more likely to have DPT3 if: mother had > or =1 year of education, mother reported ANC, or older paternal age. Children were less likely to have DPT3 in households with food insecurity and no maternal opinion of health center. The study had three findings with implications for immunization programming: (1) Mothers completing the recommended ANC visits is strongly associated with receiving at least one vaccination and with completing a vaccination series; (2) Maternal education is associated with a completed vaccination series; (3) Paternal characteristics may affect vaccination series completion.

Prevalência de insegurança alimentar em Pelotas, Rio Grande do Sul, Brasil, e estado nutricional de indivíduos que vivem nessa condição

Um estudo transversal de base populacional foi realizado em Pelotas, Sul do Brasil, para determinar a prevalência de insegurança alimentar, além de descrever o estado nutricional dos membros das famílias que vivem nessa condição. A amostra incluiu 1.450 domicílios da área urbana de Pelotas. Nessas famílias, foi aplicada uma versão curta da Escala de Segurança Alimentar (United States Department of Agriculture) - seis questões aplicadas ao responsável pela alimentação no domicílio referente aos 12 meses anteriores à entrevista. Se o domicílio foi classificado como inseguro, todos os membros foram pesados e medidos. A prevalência de insegurança alimentar para todas as famílias foi de 11% (IC95%: 9-13). Nas famílias que vivem em insegurança coexistem por um lado, o excesso de peso e obesidade entre as crianças e os adultos e, por outro, uma prevalência substancial de déficit de crescimento entre as crianças (21%). Conclui-se que esse estado de insegurança alimentar pode estar relacionado não somente à diminuição da quantidade de alimentos como à perda da qualidade nutritiva.

Measuring food insecurity and hunger in Peru: a qualitative and quantitative analysis of an adapted version of the USDA's Food Insecurity and Hunger Module

OBJECTIVE

To adapt a scale to measure perceptions on food insecurity and hunger among households in urban and rural communities in Peru.

DESIGN

Qualitative and quantitative methodology including consultation with regional experts, key informant interviews and focus groups. A field survey trial was conducted in urban and rural communities using an adapted version of the US Department of Agriculture (USDA) Food Insecurity and Hunger Module (FIHM).

SETTING

Five communities in three regions in Peru - Lima (coast), Ayacucho (Andean highlands) and San Martín (Amazon basin).

SUBJECTS

The qualitative component included forty intentionally selected people (fourteen key informants and twenty-six focus group participants). For the quantitative component 300 households that complied with selection criteria (poor or non-poor with at least one child below 12 years of age) were surveyed.

RESULTS

Qualitative research showed that concern about food availability and access was common among the three regions but its main cause varied across them. Participation in food aid programmes was a strategy to face constraints in food access. Mothers' perceptions on the importance of balanced meals varied across households from different regions. Quantitative results showed robust findings for the reliability of the adapted FIHM's fifteen-item scale (r > 0.863). In addition, descriptive results confirmed parallelism of item responses in the scale for variables such as farm ownership, family size and use of Communal Kitchens.

CONCLUSIONS

This mixed-method study allowed us to adapt the USDA module to assess food insecurity in Peru.

Household food insecurity is associated with childhood malaria in rural Haiti

Haiti is the poorest country in the Western Hemisphere and is heavily affected by food insecurity and malaria. To find out if these 2 conditions are associated with each other, we studied a convenience sample of 153 women with children 1-5 y old in Camp Perrin, South Haiti. Household food insecurity was assessed with the 16-item Escala Latinoamericana y Caribeña de Seguridad Alimentaria (ELCSA) scale previously validated in the target communities. ELCSA's reference time period was the 3 mo preceding the survey and it was answered by the mother. Households were categorized as either food secure (2%; ELCSA score = 0), food insecure/very food insecure (42.7%; ELCSA score range: 1-10), or severely food insecure (57.3%; ELCSA score range: 11-16). A total of 34.0% of women reported that their children had malaria during the 2 mo preceding the survey. Multivariate analyses showed that severe food insecure was a risk factor for perceived clinical malaria (odds ratio: 5.97; 95% CI: 2.06-17.28). Additional risk factors for perceived clinical malaria were as follows: not receiving colostrum, poor child health (via maternal self-report), a child BMI <17 kg/m(2), and child vitamin A supplementation more than once since birth. Findings suggest that policies and programs that address food insecurity are also likely to reduce the risk of malaria in Haiti.

Food insecurity among volunteer AIDS caregivers in Addis Ababa, Ethiopia was highly prevalent but buffered from the 2008 food crisis

Our objective in this study was to assess the validity and dependability of the Household Food Insecurity Access Scale (HFIAS), which was developed for international use, among community health volunteers in Addis Ababa, Ethiopia. The HFIAS was translated into Amharic and subsequently tested for content and face validity. This was followed by a quantitative validation study based on a representative sample (n = 99) of female community volunteers (HIV/AIDS home-based caregivers), with whom the HFIAS was administered at 3 time points over the course of 2008, in the context of the local and global "food crisis." By pooling observations across data collection rounds and accounting for intra-individual correlation in repeated measures, we found that the HFIAS performed well according to standards in the field. We also observed slight amelioration in reported food insecurity (FI) status over time, which seems paradoxical given the increasing inaccessibility of food over the same time period due to inflating prices and disappearing food aid. We attempted to resolve this paradox by appealing to self-report-related phenomena that arise in the context of longitudinal study designs: 1) observation bias, in which respondents change their reports according to changing expectations of the observer-respondent relationship or change their behavior in ways that ameliorate FI after baseline self-reports; and 2) "response shift," in which respondents change their reports according to reassessment of internal standards of FI. Our results are important for the validation of FI tools and for the sustainability of community health programs reliant on volunteerism in sub-Saharan Africa.

Assessing the internal validity of a household survey-based food security measure adapted for use in Iran

Background

The prevalence of food insecurity is an indicator of material well-being in an area of basic need. The U.S. Food Security Module has been adapted for use in a wide variety of cultural and linguistic settings around the world. We assessed the internal validity of the adapted U.S. Household Food Security Survey Module to measure adult and child food insecurity in Isfahan, Iran, using statistical methods based on the Rasch measurement model.

Methods

The U.S. Household Food Security Survey Module was translated into Farsi and after adaptation, administered to a representative sample. Data were provided by 2,004 randomly selected households from all sectors of the population of Isfahan, Iran, during 2005.

Results

53.1 percent reported that their food had run out at some time during the previous 12 months and they did not have money to buy more, while 26.7 percent reported that an adult had cut the size of a meal or skipped a meal because there was not enough money for food, and 7.2 percent reported that an adult did not eat for a whole day because there was not enough money for food. The severity of the items in the adult scale, estimated under Rasch-model assumptions, covered a range of 6.65 logistic units, and those in the child scale 11.68 logistic units. Most Item-infit statistics were near unity, and none exceeded 1.20.

Conclusion

The range of severity of items provides measurement coverage across a wide range of severity of food insecurity for both adults and children. Both scales demonstrated acceptable levels of internal validity, although several items should be improved. The similarity of the response patterns in the Isfahan and the U.S. suggests that food insecurity is experienced, managed, and described similarly in the two countries.

Adaptation of the U.S. Food Security Survey Module for Low-Income Pregnant Latinas: Qualitative Phase

The objectives of this study were to: 1) assessed the face validity of the 18-items US Household Food Security Scale Module (US HFSSM) among low-income pregnant Latinas and 2) adapt the US HFSSM to the target population. This study was conducted in the United States in Hartford, Connecticut where 40% of residents are of Latina descent. Three focus groups (N=14(total)) were held with pregnant and postpartum Latinas from April - June 2004 to assess the understanding and applicability (face validity) of the US HFSSM as well as adapt the US HFSSM based on their recommendations. This was followed by pre-testing (N=7) to make final adaptations to the US HFSSM. Overall, the items in the US HFSSM were clear and understandable to participants, but some questions sounded repetitive to them. Participants felt the questions were applicable to other pregnant Latinas in their community and shared food security related experiences and strategies. Participants recommendations led to key adaptations to the US HFSSM including reducing the scale to 15-items, wording statements as questions, including two time periods, replacing the term "balanced meals" with "healthy and varied", replacing the term "low cost foods" with "cheap foods" and including a definition of the term, and including a coping mechanism of avoiding running out of food. The adapted US HFSSM was found to have good face validity among pregnant Latinas and can be used to assess food insecurity among this vulnerable population.

Insegurança alimentar como indicador de iniqüidade: análise de inquérito populacional

O objetivo deste trabalho foi investigar a associação da insegurança alimentar com algumas variáveis indicativas de desigualdades sociais, como renda, escolaridade, raça/cor, composição familiar, características da moradia e condições de saneamento. Para medida de segurança alimentar, aplicou-se o instrumento EBIA (Escala Brasileira de Insegurança Alimentar) a uma amostra de 456 famílias residentes em área urbana do Município de Campinas. Verificou-se que a insegurança alimentar concentrou-se em famílias com maior número de membros menores de 18 anos, vivendo em construções precárias e com alta aglomeração de moradores, sem rede de esgoto, de baixa renda (menos de dois salários mínimos), cujo responsável não freqüentou a escola, sem membros com nível universitário e nas quais os informantes referiram ter cor da pele preta. Considera-se que a medida direta de segurança alimentar por meio da EBIA seja um importante indicador para monitoramento da iniqüidade, podendo complementar um conjunto de indicadores sociais ou, mesmo de forma isolada, identificar grupos com vulnerabilidade social.

Measuring household food security: the global experience

Measuring household food insecurity represents a challenge due to the complexity and wide array of factors associated with this phenomenon. For over one decade, researchers and agencies throughout the world have been using and assessing the validity of variations of the United States Department of Agriculture Household Food Security Supplemental Module. Thanks to numerous studies of diverse design, size, and purpose, the Household Food Security Supplemental Module has shown its suitability to directly evaluate the perceptions of individuals on their food security status. In addition, challenges and limitations are becoming clearer and new research questions are emerging as the process advances. The purpose of this article is to describe the development, validation procedures, and use of the Household Food Security Supplemental Module in very diverse settings. The most common Household Food Security Supplemental Module related studies have been conducted using criterion validity, Rasch modeling and Cronbach-Alpha Coefficient. It is critical that researchers, policy makers, governmental and non-governmental agencies intensify their efforts to further develop tools that provide valid and reliable measures of food security in diverse population groups. Additional work is needed to synthesize a universally applicable tool able to capture the global human phenomenon of food insecurity.

Insegurança alimentar intrafamiliar e perfil de consumo de alimentos

OBJETIVO: Descrever e avaliar o perfil de consumo diário de alimentos entre famílias em situação de insegurança alimentar. MÉTODOS: Inquérito populacional realizado em Campinas (SP), em 2003, com 456 famílias. Realizou-se levantamento do consumo diário de 14 grupos de alimentos, mediante informação de membro qualificado da família. Para categorização da insegurança alimentar utilizou-se uma escala dividida em 3 categorias: 1) Segurança alimentar; 2) Insegurança alimentar leve; 3) Insegurança alimentar moderada ou grave. RESULTADOS: Foram detectadas diferenças significativas entre categorias de segurança alimentar e consumo alimentar. A proporção de famílias em situação de insegurança, cujo informante não consome diariamente leite e derivados, frutas, verduras/legumes, e carnes é significantemente maior do que aquelas em situação de segurança alimentar (p<0,001). Nas famílias em segurança alimentar, o consumo de pelo menos uma fruta diariamente foi 73,7% e de derivados do leite 62,1%. Essas proporções são 11,4% e 5,5%, respectivamente, em famílias que experimentam insegurança alimentar moderada ou grave. Nestas últimas, a maioria consome diariamente apenas cereais, óleo, açúcar e feijão e gasta cerca de 68,0% da renda com despesas em alimentação. Existem diferenças significantes na freqüência das principais refeições diárias entre as categorias de segurança, sempre com menor freqüência entre os informantes das famílias em insegurança alimentar moderada ou grave. CONCLUSÃO: Famílias em insegurança alimentar moderada ou grave apresentaram dieta monótona, basicamente composta por alimentos energéticos. A condição de acesso ao alimento entre famílias em segurança alimentar, entretanto, não garantiu a adequação qualitativa da dieta. Esses resultados trazem a necessidade de reforçar, nas políticas de segurança alimentar, ações educativas direcionadas à promoção de alimentação saudável.

Internal validity of a household food security scale is consistent among diverse populations participating in a food supplement program in Colombia

Objective

We assessed the validity of a locally adapted Colombian Household Food Security Scale (CHFSS) used as a part of the 2006 evaluation of the food supplement component of the Plan for Improving Food and Nutrition in Antioquia, Colombia (MANA – Plan Departamental de Seguridad Alimentaria y Nutricional de Antioquia).

Methods

Subjects included low-income families with pre-school age children in MANA that responded affirmatively to at least one CHFSS item (n = 1,319). Rasch Modeling was used to evaluate the psychometric characteristics of the items through measure and INFIT values. Differences in CHFSS performance were assessed by area of residency, socioeconomic status and number of children enrolled in MANA. Unidimensionality of a scale by group was further assessed using Differential Item Functioning (DIF).

Results

Most CHFSS items presented good fitness with most INFIT values within the adequate range of 0.8 to 1.2. Consistency in item measure values between groups was found for all but two items in the comparison by area of residency. Only two adult items exhibited DIF between urban and rural households.

Conclusion

The results indicate that the adapted CHFSS is a valid tool to assess the household food security of participants in food assistance programs like MANA.

Gender of respondent does not affect the psychometric properties of the Brazilian Household Food Security Scale

BACKGROUND

Food insecurity is a major public concern that occurs when nutritional needs are not met, incorporates psychological and physiological coping mechanisms, and can range from basic concern over obtaining food to severe malnutrition. This study was performed to explore differences in female and male respondent psychometric characteristics of a locally adapted Brazilian Household Food Security Scale (Escala Brasileira de Medida da Insegurança Alimentar--EBIA).

METHODS

The 16-item EBIA was incorporated into the 2004 Brazilian National Household Sample Survey 2004 (Pesquisa Nacional por Amostra de Domicílios--PNAD; n = 108 606). Rasch Modelling was used to evaluate survey one-dimensionality, construct and independence through analysis of infit and relative item severities of adult and children items by gender. Differences in estimated item severities between male and female respondents were assessed using Differential Item Functioning (DIF) models.

RESULTS

The scale presented good fitness and most item infit values were within adequate range (0.8-1.2), being practically identical when comparing female and male responses. Both female and male respondents presented similar relative item severities for adult and children items and followed the same pattern of increasing relative item severities with each item in the questionnaire. None of the items presented substantial DIF.

CONCLUSIONS

This research demonstrates that the psychometric properties of the EBIA are not affected by respondent gender in Brazil. The results of this study support the validity of the proposed scale, suggesting that the scale will provide accurate information regardless of respondent gender for governments, researchers and agencies concerned with reducing epidemic levels of food insecurity and the resulting health disparities.

Household food insecurity and coping strategies in a poor rural community in Malaysia

This cross-sectional study assessed household food insecurity among low-income rural communities and examined its association with demographic and socioeconomic factors as well as coping strategies to minimize food insecurity. Demographic, socioeconomic, expenditure and coping strategy data were collected from 200 women of poor households in a rural community in Malaysia. Households were categorized as either food secure (n=84) or food insecure (n=116) using the Radimer/Cornell Hunger and Food Insecurity instrument. T-test, Chi-square and logistic regression were utilized for comparison of factors between food secure and food insecure households and determination of factors associated with household food insecurity, respectively. More of the food insecure households were living below the poverty line, had a larger household size, more children and school-going children and mothers as housewives. As food insecure households had more school-going children, reducing expenditures on the children's education is an important strategy to reduce household expenditures. Borrowing money to buy foods, receiving foods from family members, relatives and neighbors and reducing the number of meals seemed to cushion the food insecure households from experiencing food insufficiency. Most of the food insecure households adopted the strategy on cooking whatever is available at home for their meals. The logistic regression model indicates that food insecure households were likely to have more children (OR=1.71; p<0.05) and non-working mothers (OR=6.15; p<0.05), did not own any land (OR=3.18; p<0.05) and adopted the strategy of food preparation based on whatever is available at their homes (OR=4.33; p<0.05). However, mothers who reported to borrow money to purchase food (OR=0.84; p<0.05) and households with higher incomes of fathers (OR=0.99; p<0.05) were more likely to be food secure. Understanding the factors that contribute to household food insecurity is imperative so that effective strategies could be developed and implemented.

Development and validation of measure of household food insecurity in urban Costa Rica confirms proposed generic questionnaire

Interest in household food insecurity (FI) within scientific and policy groups has motivated efforts to develop methods for measuring it. Questionnaires asking about FI experiences have been shown to be valid in the contexts in which they were created. The issue has arisen as to whether such questionnaires need be developed from the ground up or if a generic questionnaire can be adapted to a particular context. This study aimed to gain an in-depth understanding of household FI in urban Costa Rica, develop and validate a questionnaire for its measurement, and inform the choice between the 2 methods of development. The study was conducting using qualitative and quantitative methods provided in the Food and Nutrition Technical Assistance (FANTA) guidelines. In-depth interviews were conducted with 49 low-middle-income urban women using a semistructured interview guide. A 14-item FI questionnaire was developed based on results from these interviews. A field study was conducted in 213 households. The results show that the developed questionnaire provides valid measurement of household FI in urban Costa Rica and is simple and quick to apply in the household setting. FANTA developed a guide during the period that this research was completed that provides a generic questionnaire that can be adapted for use in various countries, rather than building the questionnaire from the ground up. This study provides evidence that careful attention to the procedures in this guide will likely yield a questionnaire suitable for assessing household FI in middle-income countries.

Food insecurity is highly prevalent and predicts underweight but not overweight in adults and school children from Bogotá, Colombia

The aims of this study were to determine the sociodemographic and dietary correlates of household and child food insecurity in Bogotá, Colombia and to examine whether food insecurity is a risk factor for underweight or overweight in this population. We analyzed data from 2359 families with 2526 children 5-12 y of age who completed a cross-sectional survey conducted in 2006. The survey was representative of low- and middle-income families who had children enrolled in the public primary school system of Bogotá. We used a 16-item food insecurity scale, modified from the United States Household Food Security Survey Module, assessed children's dietary intake with a FFQ, and measured their height and weight. Mothers' anthropometry was obtained through self-report. We estimated adjusted prevalence ratios and 95% CI from binomial regression models. Household food insecurity with hunger and child food insecurity were each positively associated with maternal age, parity, and single parent status and inversely related to mean household income and number of home assets. Animal protein and snack food intake were inversely related to child food insecurity. In multivariate analyses, food-insecure children were 3 times more likely to be underweight than food-secure children (95% CI = 1.6, 5.4; P = 0.0007). Hunger in the household was significantly associated with maternal underweight. Food insecurity was not related to child stunting, child overweight, or maternal overweight. The prevalence of food insecurity in Bogotá is high and related to poverty. Food insecurity does not necessarily predict overweight in countries undergoing the nutrition transition.

Is the adapted Radimer/Cornell questionnaire valid to measure food insecurity of urban households in Tehran, Iran?

OBJECTIVE

To assess the validity of the adapted Radimer/Cornell questionnaire to measure food insecurity in low-income urban households in Tehran, the capital of Iran.

DESIGN

The Radimer/Cornell questionnaire was modified and used to assess the applicability, validity and reliability of such a measure in a culturally different context of urban households in Tehran. Factor analysis and Cronbach's alpha were used to assess validity and reliability, respectively. Socio-economic characteristics and food consumption frequency of the household were used to assess the criterion validity of the questionnaire.

SETTING

District 20 of Tehran.

SUBJECTS

A sample of 250 Iranian nuclear households with at least one child aged 1-18 years and a non-pregnant, non-lactating woman of reproductive age, selected through a multistage random sampling method.

RESULTS

Three scales, labelled as household, individual and child hunger, were extracted through factor analysis using varimax rotation. Internal consistency of the scales was 0.897, 0.820 and 0.796, respectively. Individual insecurity and child hunger were inversely correlated with monthly per capita income, father's education, mother's education and father's occupational status, and positively correlated with household size, as expected. However, household insecurity did not follow the same pattern. Consumption frequency of fruits, vegetables, dairy, red meat and rice declined as food insecurity status worsened, while bread and potato consumption increased.

CONCLUSION

The results show that a modified version of the Radimer/Cornell questionnaire is a valid and reliable instrument to measure household food insecurity in a culturally different context. However, further modifications seem necessary to measure food insecurity at household level. Results lend support to the utility and applicability of experience-based measures in varying cultural communities.

Psychometric properties of a modified US-household food security survey module in Campinas, Brazil

OBJECTIVE

To assess the internal validity of a multiple-item measure of household food security in Brazil using statistical methods based on the single-parameter logistic (Rasch) measurement model.

SUBJECTS/METHODS

Sample of the non-institutionalized civilian population living in the municipality of Campinas selected using stratified cluster sampling. Of the 1000 households randomly chosen, 847 responded to the interview. Responses to each of the 15 questions were coded into dichotomous items indicating whether the specific food-insecure condition had occurred (other than in just 1 or 2 days) during the 3 months before the survey. Scaling analyses were conducted separately as well as jointly for adult/household-related items and child-related items. Item-fit statistics were examined to determine the extent to which the items appear to measure the same underlying phenomenon, and item severity scores were compared with those of equivalent items in the US Current Population Survey.

CONCLUSIONS

Except for one item, infit statistics were within a range considered adequate (0.80-1.2), indicating a common phenomenon being measured with approximately equal discrimination. The relative severities of the items in the Campinas survey were generally similar to those of equivalent items in the US Current Population Survey. Analysis of all 15 items together indicates a higher severity level for child-related items compared with equivalent adult-related items.

Acculturation, economics and food insecurity among refugees resettled in the USA: a case study of West African refugees

Objectives

To assess the occurrence and severity of food insecurity, and examine associations between food insecurity and measures of socio-economic status and indicators of acculturation.

Design

Structured interviews among a non-probability sample of West African refugees at baseline and 6 months' follow-up.

Setting

Mid-sized city in north-eastern USA.

Subjects

One hundred and one caregivers with children under the age of 5 years and who have been living the USA for fewer than 4 years.

Results

Food insecurity was indicated in approximately half of households (53%). The occurrence of food insecurity was associated with measures of socio-economic status such as income, employment status and participation in the Food Stamp Program (P < 0.05). Measures of acculturation such as difficulty in the shopping environment and language difficulty were also associated with the occurrence and severity of food insecurity, as was time lived in the USA (P < 0.05). Among households who had been in the USA for 1 year or less, food insecurity was indicated in 73%, whereas among households who had been in the USA for at least 3 years food insecurity was indicted in 33%.

Conclusions

Refugees are a potentially vulnerable group and our results echo others in suggesting a need for more thorough monitoring of the health and well-being of recently resettled refugees. These results also suggest that reliance on employment as the sole indicator of success in the resettlement process may be too narrow an indicator. Future research should focus on a wider range of measures of health and well-being.

Segurança alimentar em famílias indígenas Teréna, Mato Grosso do Sul, Brasil

O presente estudo buscou descrever a situação de segurança alimentar vivenciada por famílias Teréna, das aldeias Água Azul, Olho D'Água e Oliveiras, Mato Grosso do Sul, Brasil. Foi utilizada a Escala Brasileira de Insegurança Alimentar adaptada, com 15 questões que refletem a insegurança alimentar em diferentes níveis de intensidade. Foram investigadas 49 famílias que continham em seu núcleo crianças menores de sessenta meses e obtidas informações sobre renda, densidade familiar, escolaridade materna e consumo alimentar das crianças. A prevalência de famílias com algum grau de insegurança alimentar observada foi 75,5%, 22,4% das famílias com insegurança leve, 32,7% moderada e 20,4% grave. Grande parte das famílias (67,3%) convive com o medo de ficar sem alimentos. Um quarto das mulheres entrevistadas afirmou ter passado por situações de fome no mês anterior à entrevista e 14,3% (7) apontaram que o mesmo ocorreu com as crianças da casa. Situações mais graves de insegurança alimentar foram observadas em famílias com menor renda mensal per capita, menor escolaridade materna, maior densidade domiciliar, maior número de filhos por grupo familiar e cuja dieta das crianças era insuficiente, sobretudo em proteínas e ferro.

Self-administration of a food security scale by adolescents: item functioning, socio-economic position and food intakes

Objective

To evaluate the reliability and validity of a six-item food security scale when self-administered by adolescents.

Design

Cross-sectional questionnaire survey including the six-item food security measure, socio-economic variables and a food-frequency questionnaire.

Setting

Representative sample of 29 schools in Trinidad.

Subjects

In total 1903 students aged approximately 16 years.

Results

Item affirmatives ranged from 514 (27%) for the ‘balanced meal’ item to 128 (7%) for the ‘skipped or cut meals often’ item and 141 (7%) for the ‘hungry’ item. Item-score correlations ranged from 0.444 to 0.580. Cronbach's α was 0.77. Relative item severities from the Rasch model ranged from −1.622 (standard error 0.043) for the ‘balanced meal’ item to 1.103 (0.068) for the ‘skipped or cut meals often’ item and 0.944 (0.062) for the ‘hungry’ item. The ‘hungry’ item gave a slightly lower relative severity in boys than girls. Food insecurity was associated with household overcrowding (adjusted odds ratio comparing highest and lowest quartiles 2.61, 95% confidence interval 1.75 to 3.91), lack of pipe-borne water in the home, low paternal education or paternal unemployment. After adjusting for socio-economic variables, food insecurity was associated with less frequent consumption of fruit (0.75, 0.60 to 0.94) or fish (0.72, 0.58 to 0.88) but more frequent consumption of biscuits or cakes (1.47, 1.02 to 2.11).

Conclusions

The food security scale provides a valid, reliable measure in adolescents, although young people report being hungry but not eating relatively more frequently than adults. Food-insecure adolescents have low socio-economic position and may eat less healthy diets.

Child's Gender and Household Food Insecurity are Associated with Stunting among Young Pakistani Children Residing in Urban Squatter Settlements

Background

The nutritional status of children is a good indicator of the overall well-being of a society and reflects food security as well as existing health-care and environmental conditions. In Pakistan, it is estimated that nearly 40% to 50% of children under the age of five are stunted. Due to greater economic opportunities available to the urban population as compared to the rural, it was believed that economic resources existed in poor urban Pakistani households but that the households lacked the skills and knowledge to translate their resources into good care and feeding practices.

Objective

This study aimed 1) to assess the prevalent care and feeding practices among children aged 6 to 18 months residing in the squatter settlements of Karachi and 2) to identify care and feeding practices, as well as any other underlying factors, associated with stunting.

Methods

A cross-sectional survey was conducted in eight settlements between October and December 2000. A total of 433 mothers of eligible children were interviewed with the use of structured questionnaires. Final analysis using multiple logistic regression was conducted on 399 mother—child pairs.

Results

Female children were nearly three times more likely to be stunted than male children. Households that were food insecure with hunger were also three times more likely than other households to have a stunted child. Lack of maternal formal schooling (adjusted prevalence odds ratio, 2.9; 95% confidence interval, 1.4 to 3.8) and large household size (adjusted prevalence odds ratio, 1.7; 95% confidence interval, 1.0 to 3.8) were also associated with stunting. Even though certain care and feeding practices were significant at the univariate level, they were not significant in the final multivariate analysis and so were excluded from the final model.

Conclusions

In households where food insecurity exists, knowledge of care practices may not be sufficient, and interventions such as food subsidies must precede or accompany educational efforts. Further follow-up is required to explore the effect of gender differences on child care.

Commonalities in the experience of household food insecurity across cultures: what are measures missing?

This paper hypothesizes that there is a common "core" to the household food insecurity experience that goes beyond insufficient food quantity and that transcends culture. The paper for the first time employs an exploratory approach to identify cross-cultural commonalities of the food insecurity experience as captured in 22 scales and related ethnographies derived from 15 different countries. The constant comparative method was used to code elements of the food insecurity experience expressed in the ethnographies and to regroup them into domains and subdomains. This typology was then applied to ascertain which experiential domains and subdomains were measured (or not) across all 22 studies. Survey data from 11 of the studies were then analyzed to assess similarities in the relative frequency with which culturally diverse households responded to questionnaire items related to these common domains/subdomains. The analysis confirmed that insufficient food quantity, inadequate food quality, and uncertainty and worry about food were a significant part of the food insecurity experience in all sampled cultures; concerns about social unacceptability emerged in all ethnographic accounts. Several subdomains were identified, such as concern over food safety and meal pattern disruption, with potentially important consequences for physical and psychological well-being. The comparative survey data showed that the relative frequency at which populations responded to domain-related questionnaire items was similar across all but a few cultures. Future food insecurity assessments should consider these core domains and subdomains as the starting point for measures that can generate rich information to inform food security policies and programs.

Household food insecurity and food expenditure in Bolivia, Burkina Faso, And the Philippines

This study examined the association between food insecurity, determined by a modified version of the U.S. Household Food Security Survey Module (US HFSSM), and total daily per capita (DPC) consumption (measured as household expenditures) in Bolivia, Burkina Faso, and the Philippines. Household food insecurity was determined by an adapted 9-item US HFSSM version. A short version of the World Bank's Living Standards Measurement Study (LSMS) consumption module measured household expenditures. Focus groups were used to adapt the survey instrument to each local context. The sample (n approximately 330 per country) includes residents of urban and rural areas. A 12-month food expenditure aggregate was generated as part of the total household expenditures calculation. DPC food expenditure, which represented over 60% of the total household consumption, as well as expenditures on specific food groups correlated with food insecurity both as a continuous Food Insecurity Score (FinSS) and a tricategorical food insecurity status variable. ANOVA and regression analysis were executed adjusting for social and demographic covariates. Food-secure households have significantly higher (P < 0.05) total DPC food expenditures as well as expenditures on animal source foods, vegetables, and fats and oils than moderately and severely food-insecure households. The results offer evidence that the US HFSSM is able to discriminate between households at different levels of food insecurity status in diverse developing world settings.

The 18 Household Food Security Survey items provide valid food security classifications for adults and children in the Caribbean

Background

We tested the properties of the 18 Household Food Security Survey (HFSS) items, and the validity of the resulting food security classifications, in an English-speaking middle-income country.

Methods

Survey of primary school children in Trinidad and Tobago. Parents completed the HFSS. Responses were analysed for the 10 adult-referenced items and the eight child-referenced items. Item response theory models were fitted. Item calibrations and subject scores from a one-parameter logistic (1PL) model were compared with those from either two-parameter logistic model (2PL) or a model for differential item functioning (DIF) by ethnicity.

Results

There were 5219 eligible with 3858 (74%) completing at least one food security item. Adult item calibrations (standard error) in the 1PL model ranged from -4.082 (0.019) for the 'worried food would run out' item to 3.023 (0.042) for 'adults often do not eat for a whole day'. Child item calibrations ranged from -3.715 (0.025) for 'relied on a few kinds of low cost food' to 3.088 (0.039) for 'child didn't eat for a whole day'. Fitting either a 2PL model, which allowed discrimination parameters to vary between items, or a differential item functioning model, which allowed item calibrations to vary between ethnic groups, had little influence on interpretation. The classification based on the adult-referenced items showed that there were 19% of respondents who were food insecure without hunger, 10% food insecure with moderate hunger and 6% food insecure with severe hunger. The classification based on the child-referenced items showed that there were 23% of children who were food insecure without hunger and 9% food insecure with hunger. In both children and adults food insecurity showed a strong, graded association with lower monthly household income (P < 0.001).

Conclusion

These results support the use of 18 HFSS items to classify food security status of adults or children in an English-speaking country where food insecurity and hunger are more frequent overall than in the US.