Antenatal care is associated with adherence to iron supplementation among pregnant women in selected low-middle-income-countries of Asia, Africa, and Latin America & the Caribbean regions: Insights from Demographic and Health Surveys

Anaemia is a global public health problem affecting 800 million women and children globally. Anaemia is associated with perinatal mortality, child morbidity and mortality, mental development, immune competence, susceptibility to lead poisoning and performance at work. The objective of this article is to identify whether antenatal care-seeking was associated with the uptake of iron supplementation among pregnant women, adjusting for a range of covariates. This article used data from the cross-sectional recent Demographic and Health Surveys (DHS) of 12 countries in Asia, Africa and Latin America & the Caribbean regions. The individual-level data from 273,144 women of reproductive age (15-49 years) were analysed from multi-country DHS. Multiple Logistic regression analyses were conducted using Predictive Analytics Software for Windows (PASW), Release 18.0. Receiving at least four antenatal care visits was significantly associated with the consumption of 90 or more iron-containing supplements in 12 low and middle income countries across three regions after adjusting for different household and respondent characteristics, while mass media exposure was found to be a significant predictor in India and Indonesia. Antenatal care seems to be the most important predictor of adherence to iron intake in the selected countries across Africa, Asia, Latin America and Caribbean regions.

Promoting Caregiver Early Childhood Development Behaviors through Social and Behavioral Change Communication Program in Tanzania

Objectives: Stunting remains a prevalent issue in Tanzania. The consequences of stunting include reduced height, greater susceptibility to disease, and diminished cognitive ability throughout the lifespan. Lack of psychosocial stimulation is associated with increased stunting, particularly in terms of its cognitive impact. The Addressing Stunting in Tanzania Early (ASTUTE) program was a large social and behavior change communication (SBCC) intervention that aimed to reduce childhood stunting in the region by targeting early childhood development (ECD) behaviors. The purpose of this study is to report on the extent to which exposure to ASTUTE might be related to ECD behaviors. Methods: ASTUTE disseminated program messages via a mass media campaign and interpersonal communication (IPC). Logistic regression models were used to explore the relationship between exposure to TV, radio, IPC messages, and key ECD behaviors of female primary caregivers and male heads of household. Results: Among primary caregivers, IPC was positively associated with all ECD behaviors measured. Radio was associated with all behaviors except drawing with their child. TV was associated with all behaviors except playing with their child. Among heads of household, only the radio was positively associated with the ECD behaviors measured. Conclusions for practice: Findings indicate that SBCC interventions that include mass media and IPC components may be effective at promoting parental engagement in ECD behaviors. Significance: We know that ECD is important for a child’s development. We know that parents play a critical role in promoting ECD behaviors. We are still exploring ways to influence parents so that they are more involved in ECD behaviors. The results presented here provide evidence for successful mass media and IPC efforts to improve parents’ ECD behaviors. We hope this study will add more evidence for large interventions such as these to the literature, and we are very hopeful that governments and large international NGOs will prioritize SBCC approaches in the future, especially in locations where face-to-face interventions may be challenging.

Addressing child undernutrition in Tanzania with the ASTUTE program

BACKGROUND

Optimal infant and young child feeding practices (IYCFP) reduce childhood stunting and are associated with additional health benefits. In Tanzania, IYCFP are far from optimal where 32% of children under the age of 5 years are stunted. The purpose of this study was to examine whether behavior change communication focused on reducing child undernutrition was associated with improved IYCFP in Tanzania.

METHODS

A cross-sectional survey was administered to approximately 10,000 households with children under the age of 2 at baseline and endline. Bivariate analyses and logistic regression was used to examine the relationship between exposure to behavior change communication and timely initiation of breastfeeding, exclusive breastfeeding, continued breastfeeding at one year, timely complementary feeding (CF), minimum meal frequency (MMF), minimum dietary diversity (MDD), and minimum acceptable diet (MAD).

RESULTS

Mothers who heard a radio spot about IYCFP were more likely than mothers who had not heard a radio spot about IYCFP to begin complementary foods at six months. Their children were also more likely to achieve MMF, MDD, and MAD with odds ratios of 2.227 (p = 0.0061), 1.222 (p = 0.0454), 1.618 (p =  < .0001), and 1.511 (p = 0.0002), respectively. Mothers who saw a TV spot about IYCFP were more likely to have greater odds of knowing when to begin complementary feeding, feeding their child a minimally diverse diet (4 food groups or more), and serving a minimum acceptable diet with odds ratios of 1.335 (p = 0.0081), 1.360 (p = 0.0003), and 1.268 (p = 0.0156), respectively.

CONCLUSION

Exposure to behavior change communication in Tanzania was generally associated with some increased knowledge of optimal IYCFP as well as practicing IYCF behaviors. Behavior change communication planners and implementers may want to consider conducting similar campaigns as an important component of behavior change to reduce undernutrition and poor health outcomes in developing settings.

Tanzanian men's engagement in household chores is associated with improved antenatal care seeking and maternal health

Background

Male support for partners’ antenatal care (ANC) has the potential to improve women’s care-seeking and maternal health outcomes. This study describes factors that are associated with men’s involvement in household tasks and explores the relationship between men’s help with tasks and women’s ANC-seeking, diet and workload during pregnancy as well as other health behaviors.

Methods

This study was conducted in five Lake Zone regions of Tanzania. Cross-sectional surveys were carried out among approximately 10,000 households that had children under the age of 2 years. Surveys were administered to mothers of children less than 2 years and where available, their male partners. Data were collected between December 2015 and May 2020, in conjunction with a large-scale campaign aimed at reducing childhood stunting by changing the behavior of mothers, caregivers, and decision makers. Data analysis included bivariate analysis and logistic regression modeling.

Results

Men’s engagement in household activities was significantly associated with living in an urban setting, being younger, having at least some formal schooling, early verbal interactions with their children, and male involvement in healthcare decisions. Additionally, mothers of male partners that were engaged in household activities were significantly older and more likely to have at least some secondary school education. Relative to households where men only infrequently helped out with chores or not at all, women from households where men frequently helped were significantly more likely to have taken iron tablets during pregnancy, report having eaten more than usual, lessening their household workload during their most recent pregnancy, and more likely to have played with their child in the week prior to the survey.

Conclusion

Male’s participation in household tasks is associated with a general improvement in mother’s ANC behaviors. Implicit in these findings is that general primary education for both men and women has health benefits that transcend socioeconomic class and that future interventions aimed to engage males in household tasks may target older males with less education living in rural areas.

Health facility-based counselling and community outreach are associated with maternal dietary practices in a cross-sectional study from Tanzania

Background

Anemia and underweight among women are major public health challenges. Access to health services can improve dietary behaviors and women’s nutritional status. We examined whether exposure to health services is associated with women’s dietary practices in Tanzania.

Methods

Data come from a cross-sectional baseline survey among 5000 female primary caregivers who were randomly selected via two-stage sampling, prior to implementing a maternal and child nutrition program. We ran frequencies on women’s exposure to existing health facility-based counselling, community health worker visits, and attendance at women’s support groups. We examined associations between exposure to these interventions and maternal diets and adjusted for sociodemographic covariates using ordinary least squares regression and ordered logistic regression.

Results

A third of the sample (34.1%) had received any antenatal care (ANC) during their most recent pregnancy or had been advised by anyone about nutrition (37.0%). 68.0% had never had a community health worker (CHW) speak to them about their children’s health and 9.4% had participated in a women’s group. Only 8.0% of mothers ate more than usual during pregnancy and 7.1% ate more types of foods. After adjusting for mother’s age, education and household assets, women who received nutrition advice were 1.3 times (95% CI: 1.1, 1.7) more likely than mothers who did not to eat more during pregnancy. Receiving antenatal care (ANC) and advice on nutrition before, during, and after pregnancy and delivery were highly associated with the mother eating more types of foods. Hearing from a CHW about children’s health but not support group attendance was often associated with various dietary practices. Almost all measures of access to health services were significantly associated with mothers’ frequency of eating in the previous 24 h. Receiving advice on nutrition during pregnancy and after giving birth and CHW contact were associated with mothers’ dietary diversity in the previous 24 h.

Conclusions

Several program exposure variables—especially being counselled about nutrition—were associated with improved dietary practices. Improving service delivery at scale may contribute to improved dietary behaviors in larger populations, given the associations we describe, along with findings from the existing literature.

Engaging fathers to improve complementary feeding is acceptable and feasible in the Lake Zone, Tanzania

In Tanzania, suboptimal complementary feeding practices contribute to high stunting rates. Fathers influence complementary feeding practices, and effective strategies are needed to engage them. The objectives of this research were to examine the acceptability and feasibility of (1) tailored complementary feeding recommendations and (2) engaging fathers in complementary feeding. We conducted trials of improved practices with 50 mothers and 40 fathers with children 6-18 months. At visit 1, mothers reported current feeding practices and fathers participated in focus group discussions. At visit 2, mothers and fathers received individual, tailored counselling and chose new practices to try. After 2 weeks, at visit 3, parents were interviewed individually about their experiences. Interview transcripts were analysed thematically. The most frequent feeding issues at visit 1 were the need to thicken porridge, increase dietary diversity, replace sugary snacks and drinks and feed responsively. After counselling, most mothers agreed to try practices to improve diets and fathers agreed to provide informational and instrumental support for complementary feeding, but few agreed to try feeding the child. At follow-up, mothers reported improved child feeding and confirmed fathers' reports of increased involvement. Most fathers purchased or provided funds for recommended foods; some helped with domestic tasks or fed children. Many participants reported improved spousal communication and cooperation. Families were able to practice recommendations to feed family foods, but high food costs and seasonal unavailability were challenges. It was feasible and acceptable to engage fathers in complementary feeding, but additional strategies are needed to address economic and environmental barriers.

An interpersonal nutrition campaign and maternal knowledge and childhood feeding practices: a case study from mothers in rural Indonesia

Background

The purpose of this study was to examine the extent to which a national nutrition communication campaign (NNCC) intervention providing interpersonal communication (IPC) was associated with improved knowledge and behaviors related to feeding practices among mothers with children under two years of age in rural Indonesia.

Methods

Data came from a follow-up, cross-sectional survey of 1734 mothers. Key outcomes of interest were minimum meal frequency, minimum dietary diversity and minimum acceptable diet, as defined by the World Health Organization. Associations between exposure to the NNCC intervention and infant and young child feeding (IYCF) knowledge and behaviors were analyzed using adjusted linear and logistic regression, controlling for age, education, and income.

Results

A total of 525 mothers reported exposure to IPC interventions (30.3%). Participation in IPC was associated with increased knowledge of feeding practices (p < .0001). Separately, knowledge of feeding practices was related to achieving recommended behavioral practices of minimum meal frequency (p = 0.019), dietary diversity (p = 0.013), adequate diet (p < .001).

Conclusion

These findings underscore the value of increasing maternal knowledge of IYCF practices through IPC interventions as a way to improve behavioral practices and address stunting in rural Indonesia.

Are Household Expenditures on Food Groups Associated with Children's Future Heights in Ethiopia, India, Peru, and Vietnam?

Household expenditure surveys, routinely conducted in low-and middle-income countries (LMICs), usually include questions pertaining to recent household expenditures on key food groups. When child anthropometrics are also available, such expenditure data can provide insights into household food purchasing patterns that are associated with subsequent child growth measures. We used data from 6993 children, born around 2001, from Ethiopia, India, Peru, and Vietnam, from the Young Lives younger cohort. We compared associations between two weeks of household food expenditures (in PPP-Purchasing Power Parity adjusted dollars) on food groups and child height-for-age-Z score (HAZ) at subsequent time points to assess longitudinal associations. Total food expenditures, rural/urban residence, maternal and paternal schooling, and child sex were included in our adjusted models because they may affect the relations between household food group expenditures and future child HAZ. In Ethiopia, India, and Peru every extra PPP$ spent on fats was associated with 0.02-0.07 higher future HAZ. In Vietnam every extra PPP$ spent on starches, was significantly associated with a 0.01 lower future HAZ. Across countries, different patterns of food expenditure and procurement may be differentially critical for predicting child HAZ. Our results demonstrate how expenditures on specific food groups can be associated with children's linear growth. This study provides additional evidence of the utility of longitudinal household food expenditure data in understanding child nutritional status.

Improving Pediatric Academic Global Health Collaborative Research and Agenda Setting: A Mixed-Methods Study

Academic global health collaborations have the potential to improve joint understanding of health issues in low- and middle-income countries (LMICs). Our objective was to elucidate perceptions of benefits and challenges of academic global health collaborations as well as areas for improving collaborative research conducted in LMICs. This cross-sectional, mixed-methods study surveyed investigators' perceptions of benefits and challenges of pediatric academic global health collaborations. Authors of articles from four pediatric journals reporting pediatric research conducted in LMICs published between 2006 and 2015 were surveyed. Responses of LMIC investigators were compared with those of investigators in high-income countries (HICs). Responses to open-ended questions were analyzed using a combined thematic and content analysis approach. Of 1,420 potential respondents, 252 (17.7%) responded to the survey. Collaborative research with investigators from other countries was perceived as beneficial by 88.5% of respondents (n = 223), although this perception was more common among HIC respondents (n = 110, 94.0%) than LMIC respondents (n = 113, 83.7%) (p = 0.014). Sixty-seven percent (n = 170) of respondents perceived that HIC investigators had set the research agenda in work conducted in a LMIC. Respondents identified several critical factors to improve academic global health collaborations, including research capacity building, communication, and early involvement of LMIC investigators with shared decision-making during study conception and grant writing. Pediatric academic global health collaboration was widely perceived as positive. However, despite calls for capacity building and locally generated research ideas, many respondents felt that HIC investigators set the research agenda for work conducted in LMICs. This study provides suggestions for improving collaboration among pediatric academicians globally.

Barriers and Opportunities for Improved Exclusive Breast-Feeding Practices in Tanzania: Household Trials With Mothers and Fathers

BACKGROUND

Effective promotion of exclusive breast-feeding (EBF) is needed to improve child nutrition and survival.

OBJECTIVE

We explored barriers and facilitators to EBF in rural Tanzania and assessed parents' willingness and ability to try specific recommended EBF practices plus strategies for men to support breast-feeding.

METHODS

We conducted Trials of Improved Practices in 36 households with infants <6 months. Fathers participated in focus group discussions on ways to support breast-feeding. Fathers and mothers were individually interviewed 2 and 3 times, respectively, about their willingness to try and experience with selected new practices. We analyzed data thematically.

RESULTS

Common barriers to EBF were (1) use of gripe water and traditional medicines for perceived symptoms of infantile distress; (2) mothers' workloads and time away from infants, limiting availability for EBF; and (3) water given for perceived thirst. Although several mothers expressed concerns about breast-milk insufficiency, few were giving other foods. After counseling, most mothers reported breast-feeding more optimally. Some reported improved breast-milk supply. Fathers saw their roles as providing food to mothers to ensure sufficient breast-milk and encouraging new practices. Dominant gender roles and work away from home were barriers even if fathers were willing to help with household chores. Fathers mostly provided emotional support or encouraged others to help with chores.

CONCLUSION

Exclusive breast-feeding promotion needs to address concerns about infantile distress and help parents develop effective soothing techniques while avoiding nonprescribed medicines. Engaging men in EBF interventions could help change social norms and facilitate men's involvement in improving breast-feeding practices.

Global Disparities Between Pediatric Publications and Disease Burden From 2006 to 2015

There is a disproportionate burden of pediatric disease in low- and middle-income countries (LMICs); however, the proportion and relation of published articles to childhood disease burden in LMICs have not been assessed previously. This study aimed to determine whether published articles and disease topics from research conducted in LMICs in the most widely cited pediatric journals reflected the global burden of childhood disease. We reviewed all articles published from 2006 to 2015 in the 3 pediatric journals with the highest Eigenfactor scores to identify studies conducted in the World Bank-designated LMICs. We abstracted study topic, design, purpose, country, and funding sources. We derived descriptive statistics, Fisher's exact χ2 test, Monte Carlo estimates, and Spearman's rank order coefficients. Of the 19 676 articles reviewed, 10 494 were original research articles. Of those, 965 (9.2%) were conducted in LMICs. Over the study period, the proportion of published articles originating from LMICs increased (r 2 = 0.77). Disease topics did not reflect the underlying burden of disease as measured in disability-adjusted life years (Spearman's rank order coefficient = 0.25). Despite bearing the majority of the world's burden of disease, articles from LMICs made up a small proportion of all published articles in the 3 pediatric journals with the highest Eigenfactor scores. The number of published articles from LMICs increased over the study period; nevertheless, the topics did not coincide with the burden of disease in LMICs. These discrepancies highlight the need for development of a research agenda to address the diseases that are the greatest threat to the majority of children worldwide.

What Influences Health Behavior? Learning from Caregivers of Young Children in Viet Nam

Globally, the caregiving behaviors that contribute to good nutritional status are well understood; but it is not clear why some caregivers perform these behaviors while others do not. This formative qualitative research was designed to improve understanding about what distinguishes caregivers who practice optimal behaviors from those who do not. This study is a one-time, cross-sectional baseline assessment of factors that affect nutrition-related behavior change. It took place in a rural northern province in Viet Nam. One hundred caregivers of children 6 to 17.9 months of age from five communes were interviewed. None of the five communes were included in the larger prospective study designed to test the impact of the community empowerment and nutrition program (CENP). Four behaviors were examined: feeding the child “positive deviant” foods, feeding the child during diarrheal episodes, washing the child's hands, and taking the child to the health center when ill. Results indicate that for all four behaviors, favorable social norms distinguished those who practiced each behavior from those who did not. Positive, reinforcing beliefs and attitudes were important determinants of every behavior except handwashing. Likewise, self-efficacy differentiated doers from non-doers for all behaviors except feeding during diarrheal episodes. Findings from this research suggest that fathers and in-laws of non-doers are more likely to fail to advise mothers about infant feeding and health than they are to provide negative advice. By discovering what distinguishes those who practice optimal behaviors from those who do not, researchers, program planners, and others are better equipped to develop targeted interventions that lead to positive behavior change.

Socio-demographic and economic determinants of adherence to iron intake among pregnant women in selected low and lower middle income countries in Asia: insights from a cross-country analyses of global demographic and health surveys

Background: Anaemia is a global public health problem affecting around 800 million children and women worldwide. Anaemia, defined as a reduced haemoglobin concentration, is associated with increased peri-natal mortality, increased child morbidity and mortality, impaired mental development, impaired immune competence, increased susceptibility to lead poisoning, and decreased performance at work.Methods: This paper attempts to understand the determinants underlying iron intake in select countries in Asia using multivariate regression analyses of recent data from the Demographic and Health Surveys of eight countries of Afghanistan, Cambodia, India, Indonesia, Myanmar, Nepal, Pakistan, and the Philippines. The individual level data was analysed, using Predictive Analytics Software for Windows (PASW) 18.0 release.Results: After adjusting for standard co-variates, exposure to newspaper was found to be associated with increased adherence to iron tablets or syrup, in five of the eight countries (India, Indonesia, Nepal, Pakistan, and the Philippines). Exposure to television was significantly associated with coverage and adherence to iron tablets or syrup in Afghanistan, India, Indonesia and Myanmar. Those who received at least three antenatal care visits were much more likely to adhere to at least 90 days of iron tablet or syrup or iron and folic acid tablets supplementation.Conclusions: Based on insights from eight demographic and health surveys, mass media (including print and TV), as well as antenatal care-seeking visits seem to be a particularly effective ways of reaching women and in increasing the likelihood of uptake of iron only or iron and folic acid supplements.

Household food group expenditure patterns are associated with child anthropometry at ages 5, 8 and 12 years in Ethiopia, India, Peru and Vietnam

Population-level analysis of dietary influences on nutritional status is challenging in part due to limitations in dietary intake data. Household expenditure surveys, covering recent household expenditures and including key food groups, are routinely conducted in low- and middle-income countries. These data may help identify patterns of food expenditure that relate to child growth.

OBJECTIVES

We investigated the relationship between household food expenditures and child growth using factor analysis.

METHODS

We used data on 6993 children from Ethiopia, India, Peru and Vietnam at ages 5, 8 and 12y from the Young Lives cohort. We compared associations between household food expenditures and child growth (height-for-age z scores, HAZ; body mass index-for-age z scores, BMI-Z) using total household food expenditures and the "household food group expenditure index" (HFGEI) extracted from household expenditures with factor analysis on the seven food groups in the child dietary diversity scale, controlling for total food expenditures, child dietary diversity, data collection round, rural/urban residence and child sex. We used the HFGEI to capture households' allocations of their finances across food groups in the context of local food pricing, availability and pReferences RESULTS: The HFGEI was associated with significant increases in child HAZ in Ethiopia (0.07), India (0.14), and Vietnam (0.07) after adjusting for all control variables. Total food expenditures remained significantly associated with increases in BMI-Z for India (0.15), Peru (0.11) and Vietnam (0.06) after adjusting for study round, HFGEI, dietary diversity, rural residence, and whether the child was female. Dietary diversity was inversely associated with BMI-Z in India and Peru. Mean dietary diversity increased from age 5y to 8y and decreased from age 8y to 12y in all countries.

CONCLUSION

Household food expenditure data provide insights into household food purchasing patterns that significantly predict HAZ and BMI-Z. Including food expenditure patterns data in analyses may yield important information about child nutritional status and linear growth.

Does household access to improved water and sanitation in infancy and childhood predict better vocabulary test performance in Ethiopian, Indian, Peruvian and Vietnamese cohort studies?

OBJECTIVE

Test associations between household water and sanitation (W&S) and children's concurrent and subsequent Peabody Picture Vocabulary Test (PPVT) scores.

DESIGN

Prospective cohort study.

SETTING

Ethiopia, India, Peru, Vietnam.

PARTICIPANTS

7269 children.

PRIMARY OUTCOME MEASURES

PPVT scores at 5 and 8 years. Key exposure variables were related to W&S, and collected at 1, 5 and 8 years, including 'improved' water (eg, piped, public tap or standpipe) and 'improved' toilets (eg, collection, storage, treatment and recycling of human excreta).

RESULTS

Access to improved water at 1 year was associated with higher language scores at 5 years (3/4 unadjusted associations) and 8 years (4/4 unadjusted associations). Ethiopian children with access to improved water at 1 year had test scores that were 0.26 SD (95% CI 0.17 to 0.36) higher at 5 years than children without access. Access to improved water at 5 years was associated with higher concurrent PPVT scores (in 3/4 unadjusted associations), but not later scores (in 1/4 unadjusted associations). 5-year-old Peruvian children with access to improved water had better concurrent performance on the PPVT (0.44 SD, 95% CI 0.30 to 0.59) than children without access to improved water. Toilet access at 1 year was also associated with better PPVT scores at 5 years (3/4 unadjusted associations) and sometimes associated with test results at 8 years (2/4 unadjusted associations). Toilet access at 5 years was associated with concurrent PPVT scores (3/4 unadjusted associations). More than half of all associations in unadjusted models (water and toilets) persisted in adjusted models, particularly for toilets in India, Peru and Vietnam.

CONCLUSIONS

Access to 'improved' water and toilets had independent associations with children's PPVT scores that often persisted with adjustment for covariates. Our findings suggest that effects of W&S may go beyond subacute and acute infections and physical growth to include children's language performance, a critical component of cognitive development.

Children with access to improved sanitation but not improved water are at lower risk of stunting compared to children without access: a cohort study in Ethiopia, India, Peru, and Vietnam

BACKGROUND

This study's purpose was to understand associations between water, sanitation, and child growth.

METHODS

We estimated stunting (height-for-age Z score <-2 SD) and thinness (BMI-Z <-2 SD) risk ratios using data from 7,715 Ethiopian, Indian, Peruvian, and Vietnamese children from the Young Lives study.

RESULTS

In unadjusted models, household access to improved water and toilets was often associated with reduced stunting risk. After adjusting for child, household, parent, and community variables, access to improved water was usually not associated with stunting nor thinness except in Ethiopia where access to improved water was associated with reduced stunting and thinness at 1y and 5y. In contrast, in both unadjusted and adjusted models, stunting at 1y was less common among children with good toilet access than among those without access and this difference persisted when children were 5y and 8y. For example, in adjusted estimates, Vietnamese 5y olds with access to improved toilets had relative stunting risk at 8y 0.62-0.68 that of 5y olds with no access to improved toilets. Water and toilets were rarely associated with thinness.

CONCLUSIONS

Results from our study indicate that access to improved sanitation is more frequently associated with reduced stunting risk than access to improved water. However, additional studies are needed before drawing definitive conclusions about the impact of toilets relative to water. This study is the first to our knowledge to demonstrate the robust and persistent importance of access to improved toilets in infancy, not only during the first year but continuing into childhood. Additional longitudinal investigations are needed to determine concurrent and long-term associations of WASH with stunting and thinness.

Effect of an Integrated Nutrition Program on Child Morbidity Due to Respiratory Infection and Diarrhea in Northern Viet Nam

Infectious disease and poor diet are the two proximal causes of malnutrition in children. During the 1990s, integrated nutrition programs implemented by Save the Children (SC) in Vietnam reduced severe child malnutrition, but it has not been clear if this impact was due primarily to improved diet or reduced disease. The aim of this study was to determine whether a community-based, integrated nutrition program in Vietnam reduced child morbidity due to diarrhea or acute respiratory infections. Children 5 to 25 months old were randomly selected from randomly assigned intervention and comparison communes. Caregivers of children from the intervention and comparison groups ( n = 119 per group) were interviewed about their child's morbidity at program baseline and at study months 2, 4, 6, and 12. Multiple logistic regression and general estimating equations (GEE) were used to evaluate the effect of the intervention on the occurrence of any diarrhea and respiratory illness in the preceding two weeks. Respiratory illness, mainly upper respiratory illness, was more common than diarrheal disease at baseline (54% vs. 6%, respectively). During follow-up, children in the intervention communes had approximately half the respiratory illness experienced by those in comparison communes (AOR = 0.5; p = .001). Diarrheal disease was also lower in the intervention group, although differences were not statistically significant. We conclude that SC's integrated nutrition program was associated with reduced upper respiratory illness, perhaps due to improved hygiene practices and/or improved micronutrient intakes.

What Influences Health Behavior? Learning from Caregivers of Young Children in Viet Nam

Globally, the caregiving behaviors that contribute to good nutritional status are well understood; but it is not clear why some caregivers perform these behaviors while others do not. This formative qualitative research was designed to improve understanding about what distinguishes caregivers who practice optimal behaviors from those who do not. This study is a one-time, cross-sectional baseline assessment of factors that affect nutrition-related behavior change. It took place in a rural northern province in Viet Nam. One hundred caregivers of children 6 to 17.9 months of age from five communes were interviewed. None of the five communes were included in the larger prospective study designed to test the impact of the community empowerment and nutrition program (CENP). Four behaviors were examined: feeding the child “positive deviant” foods, feeding the child during diarrheal episodes, washing the child's hands, and taking the child to the health center when ill. Results indicate that for all four behaviors, favorable social norms distinguished those who practiced each behavior from those who did not. Positive, reinforcing beliefs and attitudes were important determinants of every behavior except handwashing. Likewise, self-efficacy differentiated doers from non-doers for all behaviors except feeding during diarrheal episodes. Findings from this research suggest that fathers and in-laws of non-doers are more likely to fail to advise mothers about infant feeding and health than they are to provide negative advice. By discovering what distinguishes those who practice optimal behaviors from those who do not, researchers, program planners, and others are better equipped to develop targeted interventions that lead to positive behavior change.

Effect of an Integrated Child Nutrition Intervention on the Complementary Food Intake of Young Children in Rural North Viet Nam

Forty-two percent of Vietnamese children are stunted by two years of age. Since 1990, Save the Children Federation/US (SC) has implemented integrated nutrition programs targeting young children. We evaluated the effect of SC's nutrition program on the complementary food intake of young rural Vietnamese children. Using a longitudinal, prospective, randomized design, we followed 238 children (119 each from intervention and comparison communes) age 5 to 25 months old for six months with a re-survey at 12 months. We gathered 24-hour recall data at baseline and at months 2, 4, 6, and 12. Dietary energy intake was calculated using the 1972 Vietnamese food composition table. Key outcomes were daily frequency of consuming intervention-promoted food and non-breastmilk liquids and food, daily quantity of non-breastmilk liquids and food consumed, daily energy intake, and proportion of children meeting daily median energy requirements. Young rural children exposed to SC's program consumed intervention-promoted and any foods more frequently, ate a greater quantity of any food, consumed more energy, and were more likely to meet their daily energy requirements than comparison children. Some effects were only observed during the intensive intervention period; others persisted into or were evident only at the 12-month follow-up, approximately four months after program completion. Based on the mothers' reports, the intervention did not apparently compromise breastfeeding prevalence or frequency. The intervention improved children's food and energy intake and protected them from declining as rapidly as comparison children in meeting their energy requirements.

Implementation of Nutrition Education and Rehabilitation Programs (NERPs) in Viet Nam

Rigorous assessments of program quality are uncommon in developing countries. We evaluated the quality of the two-week, volunteer-facilitated, caregiver-child rehabilitation “hearth,” or nutrition education and rehabilitation program (NERP), sessions in Save the Children's integrated nutrition program in Viet Nam. Field workers observed attendance, food contribution, food preparation, meal consumption, health message delivery, hygiene, and weighing at 240 NERP days at 59 NERP centers during seven months of implementation. Participation in cooking NERP meals (75.8%), washing mothers' and children's hands (75.7% and 81.6%, respectively), and weighing (74.5% on days 1 and 12) were high, but attendance rates (50.3%), food contributions (20.3%), and health message delivery (20.0%) were lower than expected, all with wide variation among communes, ecology, NERP day, and NERP round. Contrary to protocol, food was often delivered to malnourished children who stayed at home to accommodate caregivers' workloads and other constraints. While home-delivery of food prevented caregivers from learning from each other in a group, it did bring “tangible messages” (i.e., a large serving size of a new food) to the doorstep. Health volunteers were wise to stress active learning over repetitive message delivery. In summary, these NERPs were probably typical of previous NERPs although comparable quality measures are lacking. Despite imperfect implementation, the NERP's active-learning and local problem-solving helped achieve measurable impact on growth, diet, morbidity, and empowerment despite uncommon program challenges, such as uncharacteristically low baseline levels of malnutrition and high population dispersion. Regular quality monitoring may enhance impact even further.

An Integrated Child Nutrition Intervention Improved Growth of Younger, More Malnourished Children in Northern Viet Nam

Integrated nutrition programs are widely used to prevent and/or reverse childhood malnutrition, but rarely rigorously evaluated. The impact of such a program on the physical growth of young rural Vietnamese children was measured. We randomized six communes to receive an integrated nutrition program implemented by Save the Children. We matched six communes to serve as controls. Our sample consisted of 238 children ( n = 119 per group) who were 5 to 30 months old on entry. Between December 1999 and December 2000, we measured weight and height monthly for six months and again at month 12. Principle outcomes were weight-for-age Z score (WAZ), height-for-age Z score (HAZ), and weight-for-height Z score (WHZ), and the changes among these measures. As expected, anthropometric indicators relative to international references worsened as the children aged. Overall, children in the intervention communes who were exposed to the integrated nutrition program did not show statistically significant better growth than comparison children. Intervention children who were younger (15 months or less) and more malnourished (less than −2 Z) at baseline, however, deteriorated significantly less than their comparable counterparts. Between baseline and month four, for example, intervention children who were malnourished and less than 15 months old at entry lost on average 0.05 WAZ while similar comparison children lost 0.25 WAZ ( p = .02). Lack of overall impact on growth may be due to a lower than expected prevalence of malnutrition at baseline and/or deworming of comparison children. Targeting nutrition interventions at very young children will have the maximum impact on growth.

Stunting in Infancy Is Associated with Decreased Risk of High Body Mass Index for Age at 8 and 12 Years of Age

BACKGROUND

Effects of early-life stunting on adiposity development later in childhood are not well understood, specifically with respect to age in the onset of overweight and obesity.

OBJECTIVES

We analyzed associations of infant stunting with prevalence of, incidence of, and reversion from high body mass index-for-age z score (BMIZ) later in life. We then estimated whether associations of infant stunting with BMIZ varied by sex, indigenous status, and rural or urban residence.

METHODS

Data were collected from 1942 Peruvian children in the Young Lives cohort study at ages 1, 5, 8, and 12 y. Multivariable generalized linear models estimated associations of stunting (height-for-age z score <-2) at age 1 y with risk of BMIZ > 1 and BMIZ > 2 prevalence, incidence (moving above a BMIZ threshold between ages), and reversion (moving below a BMIZ threshold between ages) at later ages.

RESULTS

After adjustment for covariates, stunting at age 1 y was associated with a lower prevalence of BMIZ > 1 at age 8 y (RR: 0.81; 95% CI: 0.66, 1.00; P = 0.049) and 12 y (RR: 0.75; 95% CI: 0.61, 0.91; P = 0.004), as well as a lower prevalence of BMIZ > 2 at age 8 y. Stunting was not associated with incident risk of BMIZ > 1 or BMIZ > 2. Stunting was positively associated at age 5 y with risk of reversion from BMIZ > 1 (RR: 1.22; 95% CI: 1.05, 1.42; P = 0.008) and BMIZ > 2. We found evidence that the association of stunting with prevalent and incident BMIZ > 1 was stronger for urban children at ages 5 and 8 y, and for nonindigenous children at age 8 y.

CONCLUSIONS

Stunting predicted a lower risk of prevalent BMIZ > 1 and BMIZ > 2, even after controlling for potential confounders. This finding may be driven in part by a higher risk of reversion from BMIZ > 1 by age 5 y. Our results contribute to an understanding of how nutritional stunting in infancy is associated with BMIZ later in life.

Participation in the Juntos Conditional Cash Transfer Program in Peru Is Associated with Changes in Child Anthropometric Status but Not Language Development or School Achievement

BACKGROUND

It is unclear what effects a conditional cash transfer (CCT) program would have on child anthropometry, language development, or school achievement in the context of the nutrition transition experienced by many low- and middle-income countries.

OBJECTIVE

We estimated the association of participation in Peru's Juntos CCT with anthropometry, language development, and school achievement among children aged 7-8 y.

METHODS

We used data from the Young Lives Study of a cohort born between 2001 and 2002. We estimated associations of the Juntos program with height-for-age z score (HAZ), body mass index-for-age z score (BAZ), stunting, and overweight at age 7-8 y separately for children participating in the program for ≥2 y (n = 169) and children participating for <2 y (n = 188). We then estimated associations with receptive vocabulary and grade achievement among children who had been assessed at age 4-6 y before enrollment in Juntos (n = 243). We identified control subjects using propensity score matching and conducted difference-in-differences comparisons.

RESULTS

Juntos participation was associated with increases in HAZ among boys participating for ≥2 y [average effect of treatment among the treated (ATT): 0.43; 95% CI: 0.09, 0.77; P = 0.01] and for boys participating for <2 y (ATT: 0.52; 95% CI: 0.23, 0.80; P < 0.01). Among girls participating in the program for ≥2 y, BAZ declined (ATT: -0.60; 95% CI: -1.00, -0.21; P < 0.01) as did the prevalence of overweight (ATT: -22.0 percentage points; 95% CI: -42.5, -2.7 percentage points; P = 0.03). We observed no significant associations of Juntos participation with receptive vocabulary or grade attainment.

CONCLUSIONS

CCT program participation in Peru was associated with better linear growth among boys and decreased BAZ among girls, highlighting that a large-scale poverty-alleviation intervention may influence anthropometric outcomes in the context of the nutrition transition.

Cross-Sectional and Longitudinal Associations between Household Food Security and Child Anthropometry at Ages 5 and 8 Years in Ethiopia, India, Peru, and Vietnam

BACKGROUND

Poor childhood nutritional status has lifetime effects and food insecurity is associated with dietary practices that can impair nutritional status.

OBJECTIVES

We assessed concurrent and subsequent associations between food insecurity and height-for-age z scores (HAZs) and body mass index-for-age z scores (BMI-Zs); evaluated associations with transitory and chronic food insecurity; and tested whether dietary diversity mediates associations between food insecurity and nutritional status.

METHODS

We used data from the Young Lives younger cohort composed of children in Ethiopia (n = 1757), India (n = 1825), Peru (n = 1844), and Vietnam (n = 1828) recruited in 2002 (round 1) at ∼1 y old, with subsequent data collection at 5 y in 2006 (round 2) and 8 y in 2009 (round 3).

RESULTS

Children from food-insecure households had significantly lower HAZs in all countries at 5 y (Ethiopia, -0.33; India, -0.53; Peru, -0.31; and Vietnam, -0.68 HAZ; all P < 0.001), although results were attenuated after controlling for potential confounders (Ethiopia, -0.21; India, -0.32; Peru, -0.14; and Vietnam, -0.27 HAZ; P < 0.01). Age 5 y food insecurity predicted the age 8 y HAZ, but did not add predictive power beyond HAZ at age 5 y in Ethiopia, India, or Peru. Age 5 y food insecurity predicted the age 8 y BMI-Z even after controlling for the 5 y BMI-Z, although associations were not significant after the inclusion of additional confounding variables (Ethiopia, P = 0.12; India, P = 0.29; Peru, P = 0.16; and Vietnam, P = 0.51). Chronically food-insecure households had significantly lower HAZs than households that were consistently food-secure, although BMI-Zs did not differ by chronic food-insecurity status. Dietary diversity mediated 18.8-30.5% of the association between food security and anthropometry in Vietnam, but mediated to a lesser degree (8.4-19.3%) in other countries.

CONCLUSIONS

In 4 countries, food insecurity at 5 y of age was associated with both HAZ and BMI-Z at age 8 y, although the association was attenuated after adjusting for other household factors and anthropometry at age 5 y, and remained significant only for the HAZ in Vietnam.

Households across all income quintiles, especially the poorest, increased animal source food expenditures substantially during recent Peruvian economic growth

BACKGROUND

Relative to plant-based foods, animal source foods (ASFs) are richer in accessible protein, iron, zinc, calcium, vitamin B-12 and other nutrients. Because of their nutritional value, particularly for childhood growth and nutrition, it is important to identify factors influencing ASF consumption, especially for poorer households that generally consume less ASFs.

OBJECTIVE

To estimate differential responsiveness of ASF consumption to changes in total household expenditures for households with different expenditures in a middle-income country with substantial recent income increases.

METHODS

The Peruvian Young Lives household panel (n = 1750) from 2002, 2006 and 2009 was used to characterize patterns of ASF expenditures. Multivariate models with controls for unobserved household fixed effects and common secular trends were used to examine nonlinear relationships between changes in household expenditures and in ASF expenditures.

RESULTS

Households with lower total expenditures dedicated greater percentages of expenditures to food (58.4% vs.17.9% in 2002 and 24.2% vs. 21.5% in 2009 for lowest and highest quintiles respectively) and lower percentages of food expenditures to ASF (22.8% vs. 33.9% in 2002 and 30.3% vs. 37.6% in 2009 for lowest and highest quintiles respectively). Average percentages of overall expenditures spent on food dropped from 47% to 23.2% between 2002 and 2009. Households in the lowest quintiles of expenditures showed greater increases in ASF expenditures relative to total consumption than households in the highest quintiles. Among ASF components, meat and poultry expenditures increased more than proportionately for households in the lowest quintiles, and eggs and fish expenditures increased less than proportionately for all households.

CONCLUSIONS

Increases in household expenditures were associated with substantial increases in consumption of ASFs for households, particularly households with lower total expenditures. Increases in ASF expenditures for all but the top quintile of households were proportionately greater than increases in total food expenditures, and proportionately less than overall expenditures.

Growth faltering and recovery in children aged 1-8 years in four low- and middle-income countries: Young Lives

OBJECTIVE

We characterized post-infancy child growth patterns and determined the incidence of becoming stunted and of recovery from stunting.

DESIGN

Data came from Young Lives, a longitudinal study of childhood poverty in four low- and middle-income countries.

SETTING

We analysed length/height measurements for children at ages 1, 5 and 8 years.

SUBJECTS

Children (n 7171) in Ethiopia, India, Peru and Vietnam.

RESULTS

Mean height-for-age Z-score (HAZ) at age 1 year ranged from -1·51 (Ethiopia) to -1·08 (Vietnam). From age 1 to 5 years, mean HAZ increased by 0·27 in Ethiopia (P < 0·001) and decreased among the other cohorts (range: -0·19 (Peru) to -0·32 (India); all P < 0·001). From 5 to 8 years, mean HAZ increased in all cohorts (range: 0·19 (India) to 0·38 (Peru); all P < 0·001). Prevalence of stunting (HAZ<-2·0) at 1 year ranged from 21 % (Vietnam) to 46 % (Ethiopia). From age 1 to 5 years, stunting prevalence decreased by 15·1 percentage points in Ethiopia (P < 0·001) and increased in the other cohorts (range: 3·0 percentage points (Vietnam) to 5·3 percentage points (India); all P ≤ 0·001). From 5 to 8 years, stunting prevalence decreased in all cohorts (range: 5·0 percentage points (Vietnam) to 12·7 percentage points (Peru); all P < 0·001). The incidence of becoming stunted between ages 1 to 5 years ranged from 11 % (Vietnam) to 22 % (India); between ages 5 to 8 years, it ranged from 3 % (Peru) to 6 % (India and Ethiopia). The incidence of recovery from stunting between ages 1 and 5 years ranged from 27 % (Vietnam) to 53 % (Ethiopia); between ages 5 and 8 years, it ranged from 30 % (India) to 47 % (Ethiopia).

CONCLUSIONS

We found substantial recovery from early stunting among children in four low- and middle-income countries.

Height-for-age z scores increase despite increasing height deficits among children in 5 developing countries

BACKGROUND

Growth failure remains a persistent challenge in many countries, and understanding child growth patterns is critical to the development of appropriate interventions and their evaluation. The interpretation of changes in mean height-for-age z scores (HAZs) over time to define catch-up growth has been a subject of debate. Most studies of child growth have been cross-sectional or have focused on children through age 5 y.

OBJECTIVE

The aim was to characterize patterns of linear growth among individuals followed from birth into adulthood.

DESIGN

We compared HAZs and difference in height (cm) from the WHO reference median at birth, 12 mo, 24 mo, mid-childhood, and adulthood for 5287 individuals from birth cohorts in Brazil, Guatemala, India, the Philippines, and South Africa.

RESULTS

Mean HAZs were <0 at birth in the 3 cohorts with data and ranged from -0.6 (Brazil) to -2.9 (Guatemala) at age 24 mo. Between 24 mo and mid-childhood, HAZ values increased by 0.3-0.5 in South Africa, Guatemala, and the Philippines and were unchanged in Brazil and India. Between mid-childhood and adulthood, mean HAZs increased in all cohorts but remained <0 in adulthood [mean range: -0.3 (Brazil) to -1.8 (Guatemala and Philippines)]. However, from 24 mo to adulthood, height differences from the reference median became greater.

CONCLUSIONS

From age 2 y to adulthood, mean HAZs increased, even though height deficits relative to the reference median also increased. These 2 metrics may result in different interpretations of the potential for and the impact of catch-up growth in height.

Postinfancy growth, schooling, and cognitive achievement: Young Lives

BACKGROUND

Early life growth failure and resulting cognitive deficits are often assumed to be very difficult to reverse after infancy.

OBJECTIVE

We used data from Young Lives, which is an observational cohort of 8062 children in Ethiopia, India, Peru, and Vietnam, to determine whether changes in growth after infancy are associated with schooling and cognitive achievement at age 8 y.

DESIGN

We represented the growth by height-for-age z score at 1 y [HAZ(1)] and height-for-age z score at 8 y that was not predicted by the HAZ(1). We also characterized growth as recovered (stunted at age 1 y and not at age 8 y), faltered (not stunted at age 1 y and stunted at age 8 y), persistently stunted (stunted at ages 1 and 8 y), or never stunted (not stunted at ages 1 and 8 y). Outcome measures were assessed at age 8 y.

RESULTS

The HAZ(1) was inversely associated with overage for grade and positively associated with mathematics achievement, reading comprehension, and receptive vocabulary. Unpredicted growth from 1 to 8 y of age was also inversely associated with overage for grade (OR range across countries: 0.80-0.84) and positively associated with mathematics achievement (effect-size range: 0.05-0.10), reading comprehension (0.02-0.10), and receptive vocabulary (0.04-0.08). Children who recovered in linear growth had better outcomes than did children who were persistently stunted but were not generally different from children who experienced growth faltering.

CONCLUSIONS

Improvements in child growth after early faltering might have significant benefits on schooling and cognitive achievement. Hence, although early interventions remain critical, interventions to improve the nutrition of preprimary and early primary school-age children also merit consideration.

Greater length-for-age increases the odds of attaining motor milestones in Vietnamese children aged 5-18 months

Early childhood malnutrition has been associated with delayed development. Limited data exist however about the timing of developmental delay early in life. We assessed motor milestone (MM) achievement using the World Health Organization's windows of achievement for gross motor milestones. We performed secondary analysis of baseline data of 158 Vietnamese children aged 5-18 months from a randomized community intervention trial. Median age of motor milestone achievement was compared to WHO reported medians. Multivariate logistic regression was used to identify socioeconomic, anthropometric and dietary factors associated with motor milestone achievement during the windows of achievement. Thirty four per cent of the children were stunted. Median age of MM achievement of Vietnamese children lagged by 2.4-3.7 months, compared to the WHO median for all MMs. Greater length-for-age increased the odds for walking with assistance, standing alone and walking alone by more than 3 times. Greater weight-for-age increased the odds by 3.6 for hand-and-knees crawling. Likewise, frequency of daily complementary feeding raised the odds by 3.6 for standing with assistance. In this first application of WHO windows of achievement in Viet Nam, pre-schoolers achieved motor milestones later than WHO reported median age. High prevalence of stunting and association of length-for-age with motor milestone achievement underscore the importance of addressing chronic malnutrition to optimize children's growth and development.

Children who recover from early stunting and children who are not stunted demonstrate similar levels of cognition

Stunting is associated with adverse cognitive development in childhood and adolescence, fewer years of schooling, decreased productivity, and reduced adult stature. Recovery from early stunting is possible; however, few studies explore whether those who demonstrate linear catch-up growth experience long-term cognitive deficits. Using longitudinal data on 1674 Peruvian children from the Young Lives study, we identified factors associated with catch-up growth and assessed whether children who displayed catch-up growth have significantly lower cognition than children who were not stunted during infancy and childhood. Based on anthropometric data for children 6-18 mo of age and again for the same children when they were 4.5-6 y of age, we categorized participants as not stunted, stunted in infancy but not childhood (catch-up), stunted in childhood, and stunted in infancy and childhood. Children who had grandparents in the home, had less severe stunting in infancy, and had taller mothers were more likely to demonstrate catch-up growth by round 2. Children who experienced catch-up growth had verbal vocabulary and quantitative test scores that did not differ from children who were not stunted (P = 0.6 and P = 0.7, respectively). Those stunted in childhood as well as those stunted in infancy and childhood scored significantly lower on both assessments than children who were not stunted. Based on findings from this study, policy makers and program planners should consider redoubling efforts to prevent stunting and promote catch-up growth over the first few years of life as a way of improving children's physical and intellectual development.

Impact of early and concurrent stunting on cognition

Undernutrition is associated with poor cognitive development, late entry into school, decreased years of schooling, reduced productivity and smaller adult stature. We use longitudinal data from 1674 Peruvian children participating in the Young Lives study to assess the relative impact of early stunting (stunted at 6-18 months of age) and concurrent stunting (stunted at 4.5-6 years of age) on cognitive ability. Anthropometric data were longitudinally collected for children at 6-18 months of age and 4.5-6 years of age at which time verbal and quantitative ability were also assessed. We estimate that an increase in concurrent height-for-age z-scores (HAZ) by one standard deviation was associated with an increase in a child's score on the Peabody Picture Vocabulary Test (PPVT) by 2.35 points [confidence interval (CI): 1.55-3.15] and a 0.16 point increase on the cognitive development assessment (CDA) (CI: 0.05-0.27). Furthermore, we report that the estimate for concurrent HAZ and PPVT is significantly higher than the estimate for early stunting and PPVT. We found no significant difference between early and concurrent estimates for HAZ and CDA. Children from older mothers, children whose mothers had higher education levels, children living in urban areas, children who attended pre-school, children with fewer siblings and children from wealthier backgrounds scored higher on both assessments. Cognitive skills of children entering school were associated with early stunting but the strongest association was found with concurrent stunting suggesting that interventions preventing linear growth faltering should not only focus on the under 2s but include children up to 5 years of age.

Exploring the relationship between chronic undernutrition and asymptomatic malaria in Ghanaian children

Background

A moderate association has been found between asymptomatic parasitaemia and undernutrition. However, additional investigation using the gold standard for asymptomatic parasitaemia confirmation, polymerase chain reaction (PCR), is needed to validate this association. Anthropometric measurements and blood samples from children less than five years of age in a rural Ghanaian community were used to determine if an association exists between chronic undernutrition and PCR-confirmed cases of asymptomatic malaria.

Methods

This was a descriptive cross-sectional study of 214 children less than five years of age from a community near Kumasi, Ghana. Blood samples and anthropometric measurements from these children were collected during physical examinations conducted in January 2007 by partners of the Barekuma Collaborative Community Development Programme.

Results

Findings from the logistic model predicting the odds of asymptomatic malaria indicate that children who experienced mild, moderate or severe stunting were not more likely to have asymptomatic malaria than children who were not stunted. Children experiencing anaemia had an increased likelihood (OR = 4.15; 95% CI: 1.92, 8.98) of asymptomatic malaria. Similarly, increased spleen size, which was measured by ultrasound, was also associated with asymptomatic malaria (OR = 2.17; 95% CI: 1.44, 3.28). Fast breathing, sex of the child, and age of the child were not significantly associated with the asymptomatic malaria.

Conclusions

No significant association between chronic undernutrition and presence of asymptomatic malaria was found. Children who experience anaemia and children who have splenomegaly are more likely to present asymptomatic malaria. Programmes aimed at addressing malaria should continue to include nutritional components, especially components that address anaemia.

Caregiver verbal encouragement increases food acceptance among Vietnamese toddlers

Responsive feeding, defined as the positive environment and caregiving behaviors that encourage children to eat, is critical to their physical, mental, and social development. However, research and programs designed to foster responsive feeding have been limited. This research tested the hypothesis that caregiver encouragement, caregiver and child behaviors, and other feeding characteristics were associated with acceptance of food. A total of 91 mother/child pairs in rural, northern Vietnam were videotaped during 2 2-h feeding episodes. Children were 12 and 17 mo of age at the time of study. Caregiver and child behaviors were coded at the level of the "intended bite" (7135 bites total). Feeding episodes were marked by few physical actions and minimal verbal encouragement by caregivers. Results from generalized linear mixed models suggest that when caregivers provided children with positive comments, children were 2.4 times as likely to accept bites compared with when no comments were given. Twelve-mo-olds who were in the caregiver's arms [odds ratio (OR) = 0.5] or lap (OR = 0.5) were significantly less likely than those who stood to accept bites. The 17-mo-olds who played were less likely than those with no physical action to accept bites. Play appeared to distract boys more than girls. In Vietnam, programs should help caregivers provide positive verbal encouragement to eat. Program planners and implementers may want to encourage caregivers to avoid force feeding and other forms of physical pressure. Further, mealtime should be seen as an opportunity to develop long-term feeding skills and encourage a healthy appetite.

Youth at risk: identifying correlates of violence in Bolivia

BACKGROUND

Although violence is one of the leading causes of mortality worldwide, in Latin America the prevalence of violence and factors associated with violent behavior among youth are largely unknown.

OBJECTIVE

We describe the prevalence of carrying a weapon among Bolivian adolescent males and identify risk factors associated with weapon carrying.

METHODS

The Youth Risk Behavior Survey was administered to a sample of teenagers 13-18 years of age (394 males and 182 females) from randomly selected schools in La Paz, Bolivia. The study is limited to males because of the small sample size for females. Frequencies and chi-square tests were calculated and logistic regression was used to identify factors associated with carrying a weapon in the past 30 days.

RESULTS

Among the sample population, one-quarter of adolescent boys reported carrying a weapon in the previous 30 days. Ever having used cigarettes was the risk factor most strongly associated with weapon carrying. Additional risk factors included having participated in a physical fight, having used cocaine, and sniffing glue or other inhalants.

CONCLUSION

Our results showed a link between weapon carrying and other risk behaviors, including smoking, drug use and fighting. Understanding the factors associated with carrying weapons among youth is an essential step in determining which risk behaviors should be included in comprehensive programs focused on youth violence prevention.

Teens in trouble: cigarette use and risky behaviors among private, high school students in La Paz, Bolivia

OBJECTIVE

To describe the prevalence of cigarette smoking and to identify risky behaviors associated with smoking among adolescents attending high schools in a district of La Paz, Bolivia.

METHODS

The Youth Risk Behavior Survey was administered to a sample of 394 males and 182 females, from 13-18 years of age, at six, randomly-selected schools in District II of La Paz. Frequencies, chi-square tests, and logistic regression were employed to identify factors associated with cigarette use during the 30 days prior to the survey.

RESULTS

Approximately 40% of the sample (39.4% of males and 33.7% of females) had smoked cigarettes in the 30 days prior to interview. For both males and females, consumption of alcohol was the single greatest risk factor associated with cigarette use. The males and females who reported consuming at least one alcoholic beverage on three or more occasions in the previous 30 days were 22.3 and 58.5 times (95% CIs: 6.7, 74.1 and 6.8, 502.6, respectively) more likely to smoke tobacco than those who reported no alcohol consumption. Additional risk factors included having participated in a physical fight, having carried a weapon, having had sexual intercourse, and having used illicit drugs during the previous 30 days.

CONCLUSIONS

Because teenagers who smoke are also likely to engage in a variety of other risky behaviors, parents, school administrators, and health educators may wish to use smoking to identify at-risk individuals. Among Bolivian teenagers, interventions should focus on preventing cigarette use and associated risk behaviors.

Applying the concept of positive deviance to public health data: a tool for reducing health disparities

The concept of positive deviance (PD), which highlights uncommon practices that reduce risk in low-resource communities, has been effective in community mobilization and programming to improve health outcomes. We present a protocol for extending the concept to analysis of existing public health data. The protocol includes assessing whether PD fits the situation, identifying positive deviants, and identifying behaviors associated with positive deviants' healthy outcomes. Analyzing existing datasets from a PD perspective may aid public health nurses in efforts to reduce health disparities. The effectiveness of our protocol will be clarified in future research.

Buddhist nuns on the move: an innovative approach to improving breastfeeding practices in Cambodia

The benefits of initiating breastfeeding in the first hour of life and exclusively breastfeeding thereafter are well documented. However, little is known about how best to promote these practices. In this study, we assess the impact of Buddhist nuns and wat (pagoda) grannies on optimal breastfeeding behaviours in rural Cambodia. We did so by interviewing randomly selected mothers of infants less than 6 months of age. A total of 440 mothers in programme and control communities completed the baseline survey (before programme start-up), and 467 mothers responded 1 year later. Mothers' exposure to breastfeeding promotion activities was high. At follow-up, 76% of mothers in programme communities indicated that nuns had advised them about breastfeeding, 73% received a home visit and 72% reported attending an educational session. At baseline, mothers in programme communities were 11% more likely (RR = 1.11, CI: 0.74-1.68) than mothers in control communities to initiate breastfeeding in the first hour of life. At follow-up, they were 62% more likely (RR = 1.62, CI: 1.30-2.01) to do so. Similarly, at baseline, mothers in programme communities were 54% more likely (RR = 1.54, CI: 1.21-1.96) than mothers in control communities to breastfeed exclusively in the previous 24 h. At follow-up, they were 81% more likely (RR = 1.81, CI: 1.49-2.21) to do so. Programme planners may consider using community-based volunteers as one strategy to improve breastfeeding practices and child survival.

How representative are the surveillance, epidemiology, and end results (SEER) Program cancer data of the United States?

OBJECTIVE

Data from the 11 Surveillance, Epidemiology, and End Results tumor registries cover 14% of the U.S. population and are often used to provide national estimates of cancer incidence and survival. Cancer mortality data for the U.S. and for SEER are compared to assess the representation of SEER to the U.S.

METHODS

Comparisons between US and SEER cancer mortality were made for 16 of the leading causes of cancer death. Cancer site-specific comparisons were also made by race and sex. In addition, tobacco-related cancers were considered. Analyses were performed for the years when all 11 SEER registries were included in the SEER program. Poisson regression was used to estimate site-specific cancer mortality rate ratios between the U.S. and SEER.

RESULTS

Cancer site-specific mortality rates derived from SEER data tend to under-represent the U.S. cancer mortality experience for white males and females and black males. Under-representation is observed across the majority of SEER registries, with the highest amount of under representation in Utah and New Mexico. Under-representation of SEER data compared with US data is noticeably greater among tobacco-related cancers, particularly in Utah and New Mexico.

CONCLUSION

For certain cancer sites, particularly tobacco-related cancers, the SEER coverage population is not representative of the U.S. population.