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1.
J Nutr ; 150(7): 1924-1932, 2020 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-32240304

RESUMO

BACKGROUND: Complementary food supplementation enhances linear growth and may affect body composition in children. OBJECTIVE: We aimed to determine the effect of complementary food supplements provided from the age of 6 to 18 mo on fat-free mass (FFM) and fat mass (FM) gain among children in rural Bangladesh. METHODS: In an unblinded, cluster-randomized, controlled trial we tested the effects of 4 complementary food supplements for 1 y [chickpea, rice lentil, Plumpy'doz, and wheat-soy-blend++ (WSB++)] compared with no supplements on linear growth. Body composition was estimated using weight-length-based, age- and sex-specific equations at 6, 9, 12, 15, and 18 mo and postintervention aged 24 mo. Generalized estimating equations (GEEs) were applied to estimate the effect of each complementary food on mean FFM and FM from 9 to 18 and 24 mo compared with the control, adjusting for baseline measures. Sex interactions were also explored. RESULTS: In total, 3592 (65.9% of enrolled) children completed all anthropometric assessments. Estimated FFM and FM (mean ± SD) were 5.3 ± 0.6 kg and 1.4 ± 0.4 kg, respectively, at the age of 6 mo. Mean ± SE FFM and FM from 9 to 18 mo were 75.4 ± 14.0 g and 32.9 ± 7.1 g, and 61.0 ± 16.6 g and 30.0 ± 8.4 g, higher with Plumpy'doz and chickpea foods, respectively, than the control (P < 0.001). Estimated FFM was 41.5 ± 16.6 g higher in rice-lentil-fed versus control (P < 0.05) children. WSB++ had no impact on FFM or FM. A group-sex interaction (P < 0.1) was apparent with Plumpy'doz and rice-lentil foods, with girls involved in the intervention having higher estimated FFM and FM than control girls compared with no significant effect in boys. At 24 mo, FFM and FM remained higher only in girls eating Plumpy'doz compared with the controls (P < 0.01). CONCLUSIONS: In this randomized trial, supplementation effected small shifts in apparent body composition in rural Bangladeshi children. Where seen, FFM increments were twice that of FM, in proportion to these compartments, and more pronounced in girls. FFM increased in line with reported improvements in length. This trial was registered at clinicaltrials.gov as NCT01562379.


Assuntos
Desenvolvimento Infantil , Suplementos Nutricionais , Bangladesh , Composição Corporal , Análise por Conglomerados , Humanos , Lactente , Fenômenos Fisiológicos da Nutrição do Lactente , População Rural
2.
Br J Nutr ; 123(12): 1415-1425, 2020 06 28.
Artigo em Inglês | MEDLINE | ID: mdl-32102702

RESUMO

Household food insecurity (HFI) is a major concern in South Asia. The pathways by which HFI may reduce child growth remain inadequately understood. In a cohort study of 12 693 maternal-infant dyads in rural Bangladesh, we examined association and likely explanatory pathways linking HFI, assessed using a validated nine-item perception-based index, to infant size at 6 months. Mothers were assessed early in pregnancy for anthropometric status, dietary diversity and socio-economic status. Infants were assessed for weight, length, and arm, chest and head circumferences and breast and complementary feeding status at birth and 6 months of age. Extent of HFI shared a negative, dose-response association with all measures of infant size at 6 months and odds of wasting and stunting; 57-89 % of variances in the unadjusted models were explained by prenatal factors (maternal nutritional status and dietary diversity), and birth size adjusted for gestational age. Postnatal infant breast and complementary feeding and morbidity exposures explained the remaining fraction of the significant association between HFI and differences in infant arm and chest circumferences and odds of underweight. Contextual (i.e. socio-economic) factors finally brought remaining non-significant fractions of the food insecurity-related mid-infancy growth deficit to practically zero. Improving food security prior to pregnancy and during gestation would likely improve infant growth the most in rural Bangladesh.


Assuntos
Desenvolvimento Infantil , Insegurança Alimentar , Fenômenos Fisiológicos da Nutrição Materna , Mães/estatística & dados numéricos , Estado Nutricional , Adolescente , Adulto , Antropometria , Bangladesh , Dieta/estatística & dados numéricos , Feminino , Transtornos do Crescimento/etiologia , Humanos , Lactente , Pessoa de Meia-Idade , Gravidez , Ensaios Clínicos Controlados Aleatórios como Assunto , População Rural/estatística & dados numéricos , Classe Social , Síndrome de Emaciação/etiologia , Adulto Jovem
3.
J Nutr ; 149(7): 1260-1270, 2019 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-31006806

RESUMO

BACKGROUND: Antenatal multiple micronutrient (MM) supplementation improves birth outcomes relative to iron-folic acid (IFA) in developing countries, but limited data exist on its impact on pregnancy micronutrient status. OBJECTIVE: We assessed the efficacy of a daily MM (15 nutrients) compared with IFA supplement, each providing approximately 1 RDA of nutrients and given beginning at pregnancy ascertainment, on late pregnancy micronutrient status of women in rural Bangladesh. Secondarily, we explored other contributors to pregnancy micronutrient status. METHODS: Within a double-masked trial (JiVitA-3) among 44,500 pregnant women, micronutrient status indicators were assessed in n = 1526 women, allocated by cluster to receive daily MM (n = 749) or IFA (n = 777), at 10 wk (baseline: before supplementation) and 32 wk (during supplementation) gestation. Efficacy of MM supplementation on micronutrient status indicators at 32 wk was assessed, controlling for baseline status and other covariates (e.g., inflammation and season), in regression models. RESULTS: Baseline status was comparable by intervention. Prevalence of deficiency among all participants was as follows: anemia, 20.6%; iron by ferritin, 4.0%; iron by transferrin receptor, 4.7%; folate, 2.5%; vitamin B-12, 35.4%; vitamin A, 6.7%; vitamin E, 57.7%; vitamin D, 64.0%; zinc, 13.4%; and iodine, 2.6%. At 32 wk gestation, vitamin B-12, A, and D and zinc status indicators were 3.7-13.7% higher, and ferritin, γ-tocopherol, and thyroglobulin indicators were 8.7-16.6% lower, for the MM group compared with the IFA group, with a 15-38% lower prevalence of deficiencies of vitamins B-12, A, and D and zinc (all P < 0.05). However, indicators typically suggested worsening status during pregnancy, even with supplementation, and baseline status or other covariates were more strongly associated with late pregnancy indicators than was MM supplementation. CONCLUSIONS: Rural Bangladeshi women commonly entered pregnancy deficient in micronutrients other than iron and folic acid. Supplementation with MM improved micronutrient status, although deficiencies persisted. Preconception supplementation or higher nutrient doses may be warranted to support nutritional demands of pregnancy in undernourished populations. This trial was registered at clinicaltrials.gov as NCT00860470.


Assuntos
Suplementos Nutricionais , Ácido Fólico/administração & dosagem , Ferro/administração & dosagem , Micronutrientes/administração & dosagem , População Rural , Bangladesh , Feminino , Humanos , Gravidez
4.
BMC Health Serv Res ; 19(1): 861, 2019 Nov 21.
Artigo em Inglês | MEDLINE | ID: mdl-31752841

RESUMO

BACKGROUND: Measurement of antenatal care (ANC) service coverage is often limited to the number of contacts or type of providers, reflecting a gap in the assessment of quality as well as cost estimations and health impact. The study aims to determine service subcomponents and provider and patient costs of ANC services and compares them between community (i.e. satellite clinics) and facility care (i.e. primary and secondary health centers) settings in rural Bangladesh. METHODS: Service contents and cost data were collected by one researcher and four interviewers in various community and facility health care settings in Gaibandha district between September and December 2016. We conducted structured interviews with organization managers, observational studies of ANC service provision (n = 70) for service contents and provider costs (service and drug costs) and exit interviews with pregnant women (n = 70) for patient costs (direct and indirect costs) in health clinics at community and facility levels. Fisher's exact tests were used to determine any different patient characteristics between community and facility settings. ANC service contents were assessed by 63 subitems categorized into 11 groups and compared within and across community and facility settings. Provider and patient costs were collected in Bangladesh taka and analyzed as 2016 US Dollars (0.013 exchange rate). RESULTS: We found generally similar provider and patient characteristics between the community and facility settings except in clients' gestational age. High compliance (> 50%) of service subcomponents were observed in blood pressure monitoring, weight measurement, iron and folate supplementation given, and tetanus vaccine, while lower compliance of service subcomponents (< 50%) were observed in some physical examinations such as edema and ultrasonogram and routine tests such as blood test and urine test. Average unit costs of ANC service provision were about double at the facility level ($2.75) compared with community-based care ($1.62). ANC patient costs at facilities ($2.66) were about three times higher than in the community ($0.78). CONCLUSION: The study reveals a delay in pregnant women's initial ANC care seeking, gaps in compliance of ANC subcomponents and difference of provider and patient costs between facility and community settings.


Assuntos
Cuidado Pré-Natal/economia , Serviços de Saúde Rural/economia , Bangladesh , Feminino , Custos de Cuidados de Saúde/estatística & dados numéricos , Pesquisa sobre Serviços de Saúde , Humanos , Gravidez , Cuidado Pré-Natal/organização & administração , Serviços de Saúde Rural/organização & administração
5.
J Nutr ; 148(9): 1484-1492, 2018 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-30184222

RESUMO

Background: Inadequate complementary feeding is common in low- and middle-income countries, contributing to growth deficits. Complementary food supplements (CFSs) aim to fill dietary gaps, but few CFS studies have measured nutrient intake. In a community-based, randomized CFS trial in Bangladesh, we previously reported poor dietary diversity in 6-18-mo-old participants. Objective: We investigated, in a secondary analysis in the same trial, micronutrient intake adequacy in supplemented compared with control-arm children. Methods: At age 6 mo, children were assigned to 1 y of child-feeding counseling for mothers (control) or counseling plus 1 of 4 CFS formulations. Mothers were administered quantitative past 24-h diet questionnaires for their children at ages 6, 9, 12, 15, and 18 mo. Nutrient intakes were estimated with local recipes and food composition tables assuming average age-specific breastmilk intake. Adequacy was evaluated relative to estimated average requirements or adequate intakes. Multivariate analysis of variance and generalized estimating equation (GEE) regression models estimated the effect of each CFS on nutrient adequacy. GEE models tested dietary predictors of nutrient adequacy in the control arm. Results: A total of 25,964 dietary modules across 5 interviews were completed. Nutrient adequacy from home foods combined with assumed breastmilk intake was low. Only 5 of 16 micronutrients were adequately consumed by >60% of children at 18 mo of age. Daily CFSs did not affect energy-adjusted micronutrient intake from home foods at any follow-up age (P > 0.05). CFSs increased the mean adequacy ratio for all micronutrients (P < 0.001 at all ages), to ≥1 for 14 of 16 micronutrients at 18 mo. Dietary diversity predicted adequate iron, zinc and calcium intake at 15 mo in unsupplemented controls. Conclusions: Home foods did not meet the estimated micronutrient needs of 9-18-mo-old children in rural Bangladesh. Daily supplementation with fortified complementary foods filled many micronutrient intake gaps and did not displace home foods. Previously, CFSs were shown to also improve linear growth and reduce stunting in this cohort. Findings support the need for CFSs in similar settings to promote nutritional well being and growth. This trial was registered at clinicaltrials.gov as NCT01562379.


Assuntos
Alimentos Fortificados , Alimentos Infantis , Fenômenos Fisiológicos da Nutrição do Lactente , Micronutrientes/administração & dosagem , Necessidades Nutricionais , Bangladesh , Aleitamento Materno , Aconselhamento , Dieta , Suplementos Nutricionais , Escolaridade , Ingestão de Energia , Feminino , Alimentos , Humanos , Lactente , Mães , Avaliação Nutricional , População Rural , Inquéritos e Questionários
6.
Br J Nutr ; 119(4): 407-414, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29498344

RESUMO

Environmental enteric dysfunction (EED) and systemic inflammation (SI) are common in developing countries and may cause stunting. In Bangladesh, >40 % of preschool children are stunted, but EED and SI contributions are unknown. We aimed to determine the impact of EED and SI (assessed with multiple indicators) on growth in children (n 539) enrolled in a community-based randomised food supplementation trial in rural Bangladesh. EED was defined with faecal myeloperoxidase, α-1 antitrypsin and neopterin and serum endotoxin core antibody and glucagon-like peptide-2, consolidated into gut inflammation (GI) and permeability (GP) scores, and urinary lactulose:mannitol α-1 acid glycoprotein (AGP) characterised SI. Biomarker associations with anthropometry (15-, 18- and 24-month length-for-age (LAZ), weight-for-length (WLZ) and weight-for-age (WAZ) z scores) were examined in pairwise correlations and adjusted mixed-effects regressions. Stunting, wasting and underweight prevalence at 18 months were 45, 15 and 37 %, respectively, with elevated EED and SI markers common. EED and SI were not associated with 15-24-month length trajectory. Elevated (worse) GI and GP scores predicted reduced 18-24-month WLZ change (ß -0·01 (se 0·00) z score/month for both). Elevated GP was also associated with reduced 15-18-month WLZ change (ß -0·03 (se 0·01) z score/month) and greater 15-month WLZ (ß 0·16 (se 0·05)). Higher AGP was associated with reduced prior and increased subsequent WLZ change (ß -0·04 (se 0·01) and ß 0·02 (se 0·00) z score/month for 15-18 and 18-24 months). The hypothesised link from EED to stunting was not observed in this sample of Bangladeshi 18-month-olds, but the effects of EED on constrained weight gain may have consequences for later linear growth or for other health and development outcomes.


Assuntos
Peso Corporal , Países em Desenvolvimento , Transtornos do Crescimento/epidemiologia , Inflamação/complicações , Enteropatias/complicações , Intestino Delgado/patologia , Magreza/etiologia , Antropometria , Bangladesh/epidemiologia , Biomarcadores/metabolismo , Estatura , Pré-Escolar , Feminino , Humanos , Lactente , Inflamação/metabolismo , Enteropatias/metabolismo , Enteropatias/patologia , Mucosa Intestinal/patologia , Masculino , Permeabilidade , População Rural , Magreza/epidemiologia , Magreza/metabolismo , Síndrome de Emaciação/epidemiologia
7.
BMC Pregnancy Childbirth ; 18(1): 490, 2018 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-30545325

RESUMO

BACKGROUND: Little is known about the relation between unwanted pregnancy and intention discordance and maternal mental health in low-income countries. The study aim was to evaluate maternal and paternal pregnancy intentions (and intention discordance) in relation to perinatal depressive symptoms among rural Bangladeshi women. METHODS: Data come from a population-based, community trial of married rural Bangladeshi women aged 13-44. We examined pregnancy intentions among couples and pregnancy-intention discordance, as reported by women at enrollment soon after pregnancy ascertainment, in relation to depressive symptoms in the third trimester of pregnancy (N = 14,629) and six months postpartum (N = 31,422). We calculated crude and adjusted risk ratios for prenatal and postnatal depressive symptoms by pregnancy intentions. RESULTS: In multivariable analyses, women with unwanted pregnancies were at higher risk of prenatal (Adj. RR = 1.60, 95% CI: 1.37-1.87) and postnatal depressive symptoms (Adj. RR = 1.32, 95% CI: 1.21-1.44) than women with wanted pregnancies. Women who perceived their husbands did not want the pregnancy also were at higher risk for prenatal (Adj. RR = 1.42, 95% CI: 1.22-1.65) and postnatal depressive symptoms (Adj. RR = 1.30, 95% CI: 1.19-1.41). Both parents not wanting the pregnancy was associated with prenatal and postnatal depressive symptoms (Adj. RR = 1.34, 95% CI: 1.19-1.52; Adj. RR = 1.13, 95% CI: 1.06-1.21, respectively), compared to when both parents wanted it. Adjusting for socio-demographic and pregnancy intention variables simultaneously, maternal intentions and pregnancy discordance were significantly related to prenatal depressive symptoms, and perception of paternal pregnancy unwantedness and couple pregnancy discordance, with postnatal depressive symptoms. CONCLUSIONS: Maternal, paternal and discordant couple pregnancy intentions, as perceived by rural Bangladeshi women, are important risk factors for perinatal maternal depressive symptoms.


Assuntos
Depressão Pós-Parto/epidemiologia , Depressão/epidemiologia , Complicações na Gravidez/epidemiologia , Gravidez não Planejada/psicologia , Gravidez não Desejada/psicologia , População Rural/estatística & dados numéricos , Classe Social , Adolescente , Adulto , Bangladesh/epidemiologia , Depressão/psicologia , Depressão Pós-Parto/psicologia , Países em Desenvolvimento , Feminino , Humanos , Intenção , Gravidez , Complicações na Gravidez/psicologia , Fatores de Risco , Cônjuges , Adulto Jovem
8.
J Pediatr Gastroenterol Nutr ; 65(1): 40-46, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28644348

RESUMO

OBJECTIVES: Environmental enteric dysfunction (EED) may inhibit growth and development in low- and middle-income countries, but available assessment methodologies limit its study. In rural Bangladesh, we measured EED using the widely used lactulose mannitol ratio (L:M) test and a panel of intestinal and systemic health biomarkers to evaluate convergence among biomarkers and describe risk factors for EED. METHODS: In 539 18-month-old children finishing participation in a randomized food supplementation trial, serum, stool, and urine collected after lactulose and mannitol dosing were analyzed for biomarkers of intestinal absorption, inflammation, permeability and repair, and systemic inflammation. EED scores for each participant were developed using principal component analysis and partial least squares regression. Associations between scores and L:M and with child sociodemographic and health characteristics were evaluated using regression analysis. RESULTS: EED prevalence (L:M > 0.07) was 39.0%; 60% had elevated acute phase proteins (C-reactive protein >5 mg/L or α-1 acid glycoprotein >100 mg/dL). Correlations between intestinal biomarkers were low, with the highest between myeloperoxidase and α-1 antitrypsin (r = 0.33, P < 0.01), and biomarker values did not differ by supplementation history. A 1-factor partial least squares model with L:M as the dependent variable explained only 8.6% of L:M variability. In adjusted models, L:M was associated with child sex and socioeconomic status index, whereas systemic inflammation was predicted mainly by recent illness, not EED. CONCLUSIONS: Impaired intestinal health is widespread in this setting of prevalent stunting, but a panel of serum and stool biomarkers demonstrated poor agreement with L:M. Etiologies of intestinal and systemic inflammation are likely numerous and complex in resource-poor settings, underscoring the need for a better case definition with corresponding diagnostic methods to further the study of EED.


Assuntos
Biomarcadores/metabolismo , Países em Desenvolvimento , Enteropatias/diagnóstico , Saúde da População Rural , Bangladesh/epidemiologia , Feminino , Humanos , Lactente , Absorção Intestinal , Enteropatias/epidemiologia , Enteropatias/metabolismo , Enteropatias/prevenção & controle , Mucosa Intestinal/metabolismo , Análise dos Mínimos Quadrados , Masculino , Permeabilidade , Prevalência , Análise de Componente Principal , Resultado do Tratamento
9.
Matern Child Health J ; 21(10): 1890-1900, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28766094

RESUMO

Objectives Depression following pregnancy is common, but its extent and association with maternal morbidity in the first 6 months postpartum have not been well described in low resource settings such as rural Bangladesh. Methods We used data from a population-based, community trial of approximately 39,000 married rural Bangladeshi women aged 13-44 between 2001 and 2007 to examine the relation between women's reported morbidity symptoms from childbirth to 3 months postpartum, and subsequent depressive symptoms assessed at 6 months postpartum. We calculated crude and adjusted risk ratios for depressive symptoms following women's reports of reproductive, urinary, neurologic, nutrition and other illness measures constructed based on symptomatic reporting. Results In models adjusted for sociodemographic factors and co-morbidities, all postpartum illnesses were associated with an increased relative risk [RR, with 95% confidence intervals (CI) excluding 1] of depressive symptoms by 6 months postpartum. These morbidities included uterine prolapse (RR 1.20, 95% CI 1.04-1.39), urinary tract infection (RR 1.24, 95% CI 1.11-1.38), stress related incontinence (SRI) (RR 1.49, 95% 1.33-1.67), simultaneous SRI and continuously dripping urine (RR 1.60-2.96), headache [RR 1.20 (95% CI 1.12-1.28)], convulsions (RR 1.67, 95%CI 1.36-2.06), night blindness (RR 1.33, 95% CI 1.19-1.49), anemia (RR 1.38, 95% CI 1.31-1.46), pneumonia (RR 1.24, 95% CI 1.12-1.37), gastroenteritis (RR 1.24, 95% CI 1.17-1.31) and hepatobiliary disease (RR 2.10, 96% CI 1.69-2.60). Conclusions for Practice Illnesses during the first three postpartum months were risk factors for depressive symptoms, with the strongest associations noted for convulsions and hepatobiliary disease. Symptoms of depression may be of particular concern among women suffering from physical illnesses. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov NCT0019882.


Assuntos
Depressão/epidemiologia , Mães/psicologia , Período Pós-Parto/psicologia , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Estresse Psicológico , Adolescente , Adulto , Bangladesh/epidemiologia , Depressão/diagnóstico , Feminino , Humanos , Vigilância da População , Gravidez , População Rural , Transtornos de Estresse Pós-Traumáticos/etiologia , Adulto Jovem
10.
J Nutr ; 146(10): 2109-2116, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27581578

RESUMO

BACKGROUND: Household food insecurity (HFI) can lead to a poor diet and malnutrition. Yet, little is known about the extent to which maternal diet covaries with food insecurity during pregnancy and lactation. OBJECTIVE: Longitudinal associations between HFI and maternal dietary diversity from early pregnancy to 3 mo postpartum were examined in rural Bangladesh. METHODS: We repeatedly assessed dietary intake by using a 7-d food-frequency questionnaire in the first and third trimesters of pregnancy and at 3 mo postpartum among 14,600 women enrolled into an antenatal micronutrient supplementation trial. Maternal dietary diversity score (DDS) was constructed as the sum of 10 food groups reportedly consumed at each assessment. Households were classified at 6 mo postpartum as being food secure or having mild, moderate, or severe HFI on the basis of a 9-item standard scale. Generalized estimating equations were used to estimate the longitudinal relation between HFI status and DDS and the likelihood of individual food-group consumption, adjusting for confounders at the maternal and household levels. RESULTS: The DDS decreased with progressively worse HFI, an association best explained by a derived household wealth index. Compared with women from food-secure households, women of mild, moderate, and severe HFI were less likely, in a dose-response fashion, to have consumed dairy products [adjusted ORs (95% CIs): 0.73 (0.69, 0.78), 0.62 (0.58, 0.66), and 0.52 (0.48, 0.55), respectively], eggs [0.81 (0.76, 0.85), 0.73 (0.68, 0.77), and 0.61 (0.57, 0.65)], meat [0.83 (0.79, 0.88), 0.73 (0.69, 0.78), and 0.60 (0.56, 0.64)], fish [0.87 (0.80, 0.94), 0.76 (0.70, 0.83), and 0.59 (0.54, 0.65)], legumes and nuts [0.88 (0.83, 0.93), 0.81 (0.76, 0.87), and 0.79 (0.74, 0.85)], and yellow and orange fruit and vegetables [0.85 (0.80, 0.91), 0.78 (0.73, 0.84), and 0.72 (0.67, 0.78)]. Neither intakes of dark-green leafy vegetables nor of vegetable oil were associated with HFI status. CONCLUSION: Antenatal and postnatal maternal dietary diversity, especially intakes of animal-source foods, fruit, and vegetables, declined with worsening food insecurity in rural Bangladesh.


Assuntos
Dieta , Abastecimento de Alimentos , Fenômenos Fisiológicos da Nutrição Materna , População Rural , Adolescente , Adulto , Bangladesh , Análise por Conglomerados , Estudos de Coortes , Suplementos Nutricionais , Ingestão de Energia , Feminino , Ácido Fólico/administração & dosagem , Humanos , Ferro da Dieta/administração & dosagem , Lactação , Estudos Longitudinais , Micronutrientes/administração & dosagem , Gravidez , Inquéritos e Questionários , Adulto Jovem
11.
Environ Res ; 142: 273-80, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26186135

RESUMO

BACKGROUND: Arsenic has immunomodulatory properties and may have the potential to alter susceptibility to infection in humans. OBJECTIVES: We aimed to assess the relation of arsenic exposure during pregnancy with immune function and hepatitis E virus (HEV) infection, defined as seroconversion during pregnancy and postpartum. METHODS: We assessed IgG seroconversion to HEV between 1st and 3rd trimester (TM) and 3 months postpartum (PP) among 1100 pregnancies in a multiple micronutrient supplementation trial in rural Bangladesh. Forty women seroconverted to HEV and were matched with 40 non-seroconverting women (controls) by age, parity and intervention. We assessed urinary inorganic arsenic plus methylated species (∑As) (µg/L) at 1st and 3rd TM and plasma cytokines (pg/mL) at 1st and 3rd TM and 3 months PP. RESULTS: HEV seroconverters' urinary ∑As was elevated throughout pregnancy. Non-seroconverters' urinary ∑As was similar to HEV seroconverters at 1st TM but declined at 3rd TM. The adjusted odds ratio (95% confidence interval) of HEV seroconversion was 2.17 (1.07, 4.39) per interquartile range (IQR) increase in average-pregnancy urinary ∑As. Increased urinary ∑As was associated with increased concentrations of IL-2 during the 1st and 3rd TM and 3 months PP among HEV seroconverters but not non-seroconverters. CONCLUSIONS: The relation of urinary arsenic during pregnancy with incident HEV seroconversion and with IL-2 levels among HEV-seroconverting pregnant women suggests arsenic exposure during pregnancy may enhance susceptibility to HEV infection.


Assuntos
Arsênio/urina , Poluentes Ambientais/urina , Hepatite E/epidemiologia , Adolescente , Adulto , Anticorpos Antivirais/sangue , Bangladesh/epidemiologia , Estudos de Casos e Controles , Citocinas/sangue , Suscetibilidade a Doenças , Exposição Ambiental/análise , Feminino , Hepatite E/sangue , Hepatite E/imunologia , Hepatite E/urina , Vírus da Hepatite E/imunologia , Humanos , Imunoglobulina G/sangue , Gravidez/sangue , Gravidez/urina , Primeiro Trimestre da Gravidez/sangue , Primeiro Trimestre da Gravidez/urina , Terceiro Trimestre da Gravidez/sangue , Terceiro Trimestre da Gravidez/urina , Soroconversão , Adulto Jovem
12.
BMC Ophthalmol ; 15: 74, 2015 Jul 09.
Artigo em Inglês | MEDLINE | ID: mdl-26156587

RESUMO

BACKGROUND: Aberrant dark adaptation is common to many ocular diseases and pathophysiological conditions, including vitamin A deficiency, cardiopulmonary diseases, and hypoxia. Scotopic vision and pupillary responsiveness have typically been measured using subjective, time-consuming methods. Existing techniques are particularly challenging for use in developing country settings, where vitamin A deficiency remains a major public health problem. Our aim was design a compact, low cost, and easily operated device to assess dark adaptation in the field. METHODS: The Portable Field Dark Adaptometer (PFDA) incorporates a digital camera, a retinal bleaching flash, and a Ganzfeld light source inside a pair of light-obscuring goggles. After a ~10 min period of dark adaption, the infrared camera digitally records afferent pupillary responses to graded light stimuli (-2.9 to 0.1 log cd/m(2)). We tested this device in a variety of field settings to assess: a) ease of use and b) whether test data could clearly and accurately depict the well-known dose-response relationship between light intensity and pupil contraction. A total of 822 videos were collected. We used an open source video analysis software to measure pupil size in pixel units. Pupillary responsiveness was expressed as the percent change in pupil size from pre- to post-light exposure. Box plots, t test, and multi-level mixed effects linear regression modeling were used to characterize the relationship between light intensity and pupillary response. RESULTS: The PFDA was employed with only minor technical challenges in Bangladesh, Kenya, Zambia, and Peru. Our data show a clear linear increase in pupillary constriction with increasing log light intensity. Light intensity was a strong predictor of pupillary response, regardless of baseline pupil size. CONCLUSIONS: The consistent physiological response demonstrated here supports the use of the PFDA as a reliable tool to measure dark adaptation. As a next step, PFDA measurements will be validated against biochemical indicators of vitamin A status and hypoxemia. Ultimately, this new technology may provide a novel approach for nutritional assessment, with potential clinical applications.


Assuntos
Adaptação à Escuridão/fisiologia , Técnicas de Diagnóstico Oftalmológico/instrumentação , Avaliação Nutricional , Fotometria/instrumentação , Pupila/efeitos da radiação , Reflexo Pupilar/fisiologia , Adulto , Idoso , Criança , Pré-Escolar , Desenho de Equipamento , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cegueira Noturna/fisiopatologia , Gravidez , Deficiência de Vitamina A/fisiopatologia , Adulto Jovem
13.
BMC Public Health ; 15: 36, 2015 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-25637319

RESUMO

BACKGROUND: Although safe motherhood strategies recommend that women seek timely care from health facilities for obstetric complications, few studies have described facility availability of emergency obstetric care (EmOC). We sought to describe and compare availability and readiness to provide EmOC among public and private health facilities commonly visited for pregnancy-related complications in two districts of northwest Bangladesh. We also described aspects of financial and geographic access to healthcare and key constraints to EmOC provision. METHODS: Using data from a large population-based community trial, we identified and surveyed the 14 health facilities (7 public, 7 private) most frequently visited for obstetric complications and near misses as reported by women. Availability of EmOC was based on provision of medical services, assessed through clinician interviews and record review. Levels of EmOC availability were defined as basic or comprehensive. Readiness for EmOC provision was based on scores in four categories: staffing, equipment, laboratory capacity, and medicines. Readiness scores were calculated using unweighted averages. Costs of C-section procedures and geographic locations of facilities were described. Textual analysis was used to identify key constraints. RESULTS: The seven surveyed private facilities offered comprehensive EmOC compared to four of the seven public facilities. With 100% representing full readiness, mean EmOC readiness was 81% (range: 63%-91%) among surveyed private facilities compared to 67% (range: 48%-91%) in public facilities (p = 0.040). Surveyed public clinics had low scores on staffing and laboratory capacity (69%; 50%). The mean cost of the C-section procedure in private clinics was $77 (standard deviation: $16) and free in public facilities. The public sub-district facilities were the only facilities located in rural areas, with none providing comprehensive EmOC. Shortages in specialized staff were listed as the main barrier to EmOC provision in public facilities. CONCLUSIONS: Although EmOC availability and readiness was higher among the surveyed seven most commonly visited private clinics, public facilities appeared to be more affordable for C-section and more geographically accessible. Strategies to retain anesthesiologists and surgeons, such as non-financial incentives, are needed to improve EmOC provision in the public sector. Centralized blood banks are recommended to streamline safe blood acquisition for obstetric surgeries.


Assuntos
Parto Obstétrico/estatística & dados numéricos , Serviços Médicos de Emergência/estatística & dados numéricos , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Serviços de Saúde Materna/estatística & dados numéricos , Setor Privado , Setor Público , Bangladesh , Área Programática de Saúde , Tratamento de Emergência/estatística & dados numéricos , Feminino , Humanos , Gravidez , Complicações na Gravidez/terapia , Garantia da Qualidade dos Cuidados de Saúde , População Rural/estatística & dados numéricos
14.
BMC Health Serv Res ; 15: 166, 2015 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-25985774

RESUMO

BACKGROUND: In communities with low rates of institutional delivery, little data exist on care-seeking behavior for potentially life-threatening obstetric complications. In this analysis, we sought to describe care-seeking patterns for self-reported complications and near misses in rural Bangladesh and to identify factors associated with care seeking for these conditions. METHODS: Utilizing data from a community-randomized controlled trial enrolling 42,214 pregnant women between 2007 and 2011, we used multivariable multinomial logistic regression to explore the association of demographic and socioeconomic factors, perceived need, and service availability with care seeking for obstetric complications or near misses. We also used multivariable multinomial logistic regression to analyze the factors associated with care seeking by type of obstetric complication (eclampsia, sepsis, hemorrhage, and obstructed labor). RESULTS: Out of 9,576 women with data on care seeking for obstetric complications, 77% sought any care, with 29% (n = 2,150) visiting at least one formal provider and 70% (n = 5,149) visiting informal providers only. The proportion of women seeking at least one formal provider was highest among women reporting eclampsia (57%), followed by hemorrhage (28%), obstructed labor (22%), and sepsis (17%) (p < 0.001). In multivariable analyses, socioeconomic factors such as living in a household from the highest wealth quartile (Relative Risk Ratio of 1.49; 95% CI of [1.33-1.73]), women's literacy (RRR of 1.21; 95% CI of [1.05-1.42]), and women's employment (RRR of 1.10; 95% CI of [1.01-1.18]) were significantly associated with care seeking from formal providers. Service factors including living less than 10 kilometers from a health facility (RRR of 1.16; 95% CI of [1.05-1.28]) and facility availability of comprehensive obstetric services (RRR of 1.25; 95% CI of 1.04-1.36) were also significantly associated with seeking care from formal providers. CONCLUSIONS: While the majority of women reporting obstetric complications sought care, less than a third visited health facilities. Improvements in socioeconomic factors such as maternal literacy, coupled with improved geographic access and service availability, may increase care seeking from formal facilities. Enhancing community awareness on symptoms of hemorrhage, sepsis, and obstructed labor and their consequences may promote care seeking for obstetric complications in rural Bangladesh. TRIAL REGISTRATION NUMBER: NCT00860470 .


Assuntos
Parto Obstétrico , Serviços de Saúde Materna , Aceitação pelo Paciente de Cuidados de Saúde , Complicações na Gravidez , Serviços de Saúde Rural , Adolescente , Adulto , Bangladesh , Família , Feminino , Comportamentos Relacionados com a Saúde , Humanos , Modelos Logísticos , Serviços de Saúde Materna/estatística & dados numéricos , Pessoa de Meia-Idade , Razão de Chances , Gravidez , Estudos Prospectivos , Fatores Socioeconômicos , Adulto Jovem
15.
Ecol Food Nutr ; 54(1): 74-92, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25427283

RESUMO

Fortified blended foods (FBFs) are widely used to prevent undernutrition in early childhood in food-insecure settings. We field tested enhanced Wheat Soy Blend (WSB++)-a FBF fortified with micronutrients, milk powder, sugar, and oil-in preparation for a complementary food supplement (CFS) trial in rural northwestern Bangladesh. Formative work was conducted to determine the optimal delivery method (cooked vs. not) for this CFS, to examine mothers' child feeding practices with and acceptance of the WSB++, and to identify potential barriers to adherence. Our results suggest WSB++ is an acceptable CFS in rural Bangladesh and the requirement for mothers to cook WSB++ at home is unlikely to be a barrier to its daily use as a CFS in this population.


Assuntos
Atitude , Culinária , Dieta , Comportamento Alimentar , Alimentos Fortificados , Desnutrição/prevenção & controle , Mães , Animais , Bangladesh , Fast Foods , Feminino , Assistência Alimentar , Abastecimento de Alimentos , Humanos , Lactente , Fenômenos Fisiológicos da Nutrição do Lactente , Masculino , População Rural , Glycine max , Triticum
16.
BMC Pregnancy Childbirth ; 14: 347, 2014 Oct 04.
Artigo em Inglês | MEDLINE | ID: mdl-25282340

RESUMO

BACKGROUND: In rural Bangladesh, more than 75% of all births occur at home in the absence of skilled birth attendants. Population-based data are lacking on the burden and risk factors for obstetric complications in settings with low rates of institutional delivery. We sought to describe the prevalence of reported complications and to analyze risk factors for obstetric complications and near misses, using data from a representative, rural setting of Bangladesh. METHODS: This study utilized existing data on 42,214 pregnant women enrolled in a micronutrient supplementation cohort trial between 2007 and 2011 in rural northwest Bangladesh. Based on self-report of complications, women were categorized as having obstetric complications, near misses, or non-complicated pregnancies using definitions modified from the World Health Organization. Multivariable multinomial regression was used to analyze the association of biological, socioeconomic, and psychosocial variables with obstetric complications or near misses. RESULTS: Of enrolled women, 25% (n = 10,380) were classified as having at least one obstetric complication, 2% (n = 1,004) with reported near misses, and 73% (n = 30,830) with non-complicated pregnancies. Twelve percent (n = 5,232) reported hemorrhage and 8% (n = 3,259) reported sepsis. Of the 27,241 women with live births or stillbirths, 11% (n = 2,950) reported obstructed labor and 1% (n = 328) reported eclampsia. Biological risk factors including women's age less than 18 years (Relative Risk Ratio [RRR] 1.26 95%CI:1.14-1.39) and greater than 35 years (RRR 1.23 95%CI:1.09-1.38), history of stillbirth or miscarriage (RRR 1.15 95%CI:1.07-1.22), and nulliparity (RRR 1.16 95%CI:1.02-1.29) significantly increased the risk of obstetric complications. Neither partner wanting the pregnancy increased the risk of obstetric complications (RRR 1.33 95%CI:1.20-1.46). Mid-upper arm circumference <21.5 cm increased the risk of hemorrhage and sepsis. CONCLUSIONS: These analyses indicate a high burden of obstetric morbidity. Maternal age, nulliparity, a history of miscarriage or stillbirth, and lack of pregnancy wantedness were associated with increased risk of obstetric complications. Policies to address early marriage, unmet need for contraception, and maternal undernutrition may help mitigate this morbidity burden in rural Bangladesh.


Assuntos
Parto Obstétrico/efeitos adversos , Parto Domiciliar/efeitos adversos , Mortalidade Materna/tendências , Complicações do Trabalho de Parto/epidemiologia , Resultado da Gravidez , Adolescente , Adulto , Bangladesh , Distribuição de Qui-Quadrado , Estudos de Coortes , Parto Obstétrico/métodos , Feminino , Parto Domiciliar/estatística & dados numéricos , Humanos , Índia , Recém-Nascido , Modelos Logísticos , Análise Multivariada , Complicações do Trabalho de Parto/diagnóstico , Gravidez , Complicações na Gravidez/diagnóstico , Complicações na Gravidez/epidemiologia , Estudos Prospectivos , Fatores de Risco , População Rural , Fatores Socioeconômicos , Adulto Jovem
17.
JAMA ; 312(24): 2649-58, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25536256

RESUMO

IMPORTANCE: Maternal micronutrient deficiencies may adversely affect fetal and infant health, yet there is insufficient evidence of effects on these outcomes to guide antenatal micronutrient supplementation in South Asia. OBJECTIVE: To assess effects of antenatal multiple micronutrient vs iron-folic acid supplementation on 6-month infant mortality and adverse birth outcomes. DESIGN, SETTING, AND PARTICIPANTS: Cluster randomized, double-masked trial in Bangladesh, with pregnancy surveillance starting December 4, 2007, and recruitment on January 11, 2008. Six-month infant follow-up ended August 30, 2012. Surveillance included 127,282 women; 44,567 became pregnant and were included in the analysis and delivered 28,516 live-born infants. Median gestation at enrollment was 9 weeks (interquartile range, 7-12). INTERVENTIONS: Women were provided supplements containing 15 micronutrients or iron-folic acid alone, taken daily from early pregnancy to 12 weeks postpartum. MAIN OUTCOMES AND MEASURES: The primary outcome was all-cause infant mortality through 6 months (180 days). Prespecified secondary outcomes in this analysis included stillbirth, preterm birth (<37 weeks), and low birth weight (<2500 g). To maintain overall significance of α = .05, a Bonferroni-corrected α = .01 was calculated to evaluate statistical significance of primary and 4 secondary risk outcomes (.05/5). RESULTS: Among the 22,405 pregnancies in the multiple micronutrient group and the 22,162 pregnancies in the iron-folic acid group, there were 14,374 and 14,142 live-born infants, respectively, included in the analysis. At 6 months, multiple micronutrients did not significantly reduce infant mortality; there were 764 deaths (54.0 per 1000 live births) in the iron-folic acid group and 741 deaths (51.6 per 1000 live births) in the multiple micronutrient group (relative risk [RR], 0.95; 95% CI, 0.86-1.06). Multiple micronutrient supplementation resulted in a non-statistically significant reduction in stillbirths (43.1 vs 48.2 per 1000 births; RR, 0.89; 95% CI, 0.81-0.99; P = .02) and significant reductions in preterm births (18.6 vs 21.8 per 100 live births; RR, 0.85; 95% CI, 0.80-0.91; P < .001) and low birth weight (40.2 vs 45.7 per 100 live births; RR, 0.88; 95% CI, 0.85-0.91; P < .001). CONCLUSIONS AND RELEVANCE: In Bangladesh, antenatal multiple micronutrient compared with iron-folic acid supplementation did not reduce all-cause infant mortality to age 6 months but resulted in a non-statistically significant reduction in stillbirths and significant reductions in preterm births and low birth weight. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT00860470.


Assuntos
Deficiências Nutricionais/tratamento farmacológico , Suplementos Nutricionais , Ácido Fólico/uso terapêutico , Micronutrientes/uso terapêutico , Complicações na Gravidez/tratamento farmacológico , Cuidado Pré-Natal , Administração Oral , Adulto , Bangladesh , Deficiências Nutricionais/complicações , Feminino , Humanos , Lactente , Mortalidade Infantil , Recém-Nascido de Baixo Peso , Recém-Nascido , Ferro , Gravidez , Nascimento Prematuro , População Rural , Natimorto , Adulto Jovem
18.
J Nutr ; 143(7): 1161-7, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23677862

RESUMO

Exclusive breastfeeding of newborns, a practice recommended by WHO, is hindered in many countries by practices such as prelacteal feeding (feeding other foods before breast milk is fed to infants). This paper describes maternal and infant characteristics and trends over time associated with early neonatal feeding (ENF) in Bangladesh. The analysis used data from 24,992 participants in a randomized controlled trial supplementing vitamin A and ß-carotene to women in northwestern rural Bangladesh. A majority of newborns (89.2%) were fed substances other than breast milk in the first 3 d of life. Early neonatal feeding practices were found to be significantly associated with lower maternal education, higher gravidity, lower socioeconomic status, and younger maternal age. A perceived inability to suckle normally after birth was closely related to the risk of an infant being fed a food other than breast milk in the first 3 d of life [OR = 0.09 (95% CI: 0.08, 0.11)]. Only 18.8% of newborns fed an early neonatal food were exclusively breastfed between 3 d and 3 mo postpartum compared with 70.6% of those not fed an early neonatal food during this period (P < 0.05). Early neonatal feeding practices should be addressed when scaling-up exclusive breastfeeding in South Asia. Maternal education, antenatal care, and support during labor and delivery may help reduce ENF and promote exclusive breastfeeding.


Assuntos
Aleitamento Materno , Suplementos Nutricionais , Fenômenos Fisiológicos da Nutrição do Lactente , População Rural , Adulto , Bangladesh , Método Duplo-Cego , Comportamento Alimentar , Feminino , Humanos , Fórmulas Infantis , Recém-Nascido , Modelos Logísticos , Idade Materna , Leite Humano , Período Pós-Parto , Fatores Socioeconômicos , Vitamina A/administração & dosagem , Organização Mundial da Saúde , Adulto Jovem , beta Caroteno/administração & dosagem
19.
Br J Nutr ; 109(4): 639-47, 2013 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-22716500

RESUMO

Equations for predicting body composition from bioelectrical impedance analysis (BIA) parameters are age-, sex- and population-specific. Currently there are no equations applicable to women of reproductive age in rural South Asia. Hence, we developed equations for estimating total body water (TBW), fat-free mass (FFM) and fat mass in rural Bangladeshi women using BIA, with ²H2O dilution as the criterion method. Women of reproductive age, participating in a community-based placebo-controlled trial of vitamin A or ß-carotene supplementation, were enrolled at 19·7 (SD 9·3) weeks postpartum in a study to measure body composition by ²H2O dilution and impedance at 50 kHz using multi-frequency BIA (n 147), and resistance at 50 kHz using single-frequency BIA (n 82). TBW (kg) by ²H2O dilution was used to derive prediction equations for body composition from BIA measures. The prediction equation was applied to resistance measures obtained at 13 weeks postpartum in a larger population of postpartum women (n 1020). TBW, FFM and fat were 22·6 (SD 2·7), 30·9 (SD 3·7) and 10·2 (SD 3·8) kg by ²H2O dilution. Height²/impedance or height²/resistance and weight provided the best estimate of TBW, with adjusted R² 0·78 and 0·76, and with paired absolute differences in TBW of 0·02 (SD 1·33) and 0·00 (SD 1·28) kg, respectively, between BIA and ²H2O. In the larger sample, values for TBW, FFM and fat were 23·8, 32·5 and 10·3 kg, respectively. BIA can be an important tool for assessing body composition in women of reproductive age in rural South Asia where poor maternal nutrition is common.


Assuntos
Composição Corporal , Impedância Elétrica , Adulto , Antropometria , Bangladesh , Estatura , Água Corporal , Peso Corporal , Suplementos Nutricionais , Feminino , Humanos , Período Pós-Parto , Ensaios Clínicos Controlados Aleatórios como Assunto , População Rural , Vitamina A/química , Adulto Jovem , beta Caroteno/química
20.
BMC Womens Health ; 12: 23, 2012 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-22894142

RESUMO

BACKGROUND: Though non-communicable diseases contribute to an increasing share of the disease burden in South Asia, health systems in most rural communities are ill-equipped to deal with chronic illness. This analysis seeks to describe care-seeking behavior among women of reproductive age who died from fatal non-communicable diseases as recorded in northwest rural Bangladesh between 2001 and 2007. METHODS: This analysis utilized data from a large population-based cohort trial in northwest rural Bangladesh. To conduct verbal autopsies of women who died while under study surveillance, physicians interviewed family members to elicit the biomedical symptoms that the women experienced as well as a narrative of the events leading to deaths. We performed qualitative textual analysis of verbal autopsy narratives for 250 women of reproductive age who died from non-communicable diseases between 2001 and 2007. RESULTS: The majority of women (94%) sought at least one provider for their illnesses. Approximately 71% of women first visited non-certified providers such as village doctors and traditional healers, while 23% first sought care from medically certified providers. After the first point of care, women appeared to switch to medically certified practitioners when treatment from non-certified providers failed to resolve their illness. CONCLUSIONS: This study suggests that treatment seeking patterns for non-communicable diseases are affected by many of the sociocultural factors that influence care seeking for pregnancy-related illnesses. Families in northwest rural Bangladesh typically delayed seeking treatment from medically certified providers for NCDs due to the cost of services, distance to facilities, established relationships with non-certified providers, and lack of recognition of the severity of illnesses. Most women did not realize initially that they were suffering from a chronic illness. Since women typically reached medically certified providers in advanced stages of disease, they were usually told that treatment was not possible or were referred to higher-level facilities that they could not afford to visit. Women suffering from non-communicable disease in these rural communities need feasible and practical treatment options. Further research and investment in adequate, appropriate care seeking and referral is needed for women of reproductive age suffering from fatal non-communicable diseases in resource-poor settings.


Assuntos
Doença Crônica , Acessibilidade aos Serviços de Saúde , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Serviços de Saúde Rural , Adolescente , Adulto , Autopsia , Bangladesh , Causas de Morte , Doença Crônica/mortalidade , Doença Crônica/terapia , Estudos de Coortes , Características Culturais , Família , Feminino , Pesquisas sobre Atenção à Saúde , Pessoal de Saúde , Humanos , Entrevistas como Assunto , Medicina Tradicional , Pessoa de Meia-Idade , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Áreas de Pobreza , Pesquisa Qualitativa , Serviços de Saúde Rural/economia , Serviços de Saúde Rural/estatística & dados numéricos , Fatores Socioeconômicos , Adulto Jovem
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