Dataset Information

Viral Pathogen-Specific Clinical and Demographic Characteristics of Children with Moderate-to-Severe Diarrhea in Rural Bangladesh.

ABSTRACT: Diarrheal disease is a leading cause of childhood morbidity and mortality worldwide, but particularly in low-income countries in sub-Saharan Africa and South Asia. The Global Enteric Multicenter Study (GEMS) examined the infectious etiologies as well as associated demographics, socioeconomic markers, health-care-seeking behaviors, and handwashing practices of the households of children with diarrhea and their age- and gender-matched controls in seven countries over a 3-year period (December 2007-December 2010). Stool studies to determine diarrheal etiologies and anthropometry were performed at baseline and at 60-day follow-up visits, along with surveys to record demographics and living conditions of the children. We performed secondary analyses of the GEMS data derived from the Bangladesh portion of the study in children with diarrhea associated with viral enteropathogens and explored pathogen-specific features of disease burden. Rotavirus and norovirus were the most prevalent pathogens (39.3% and 35%, respectively). Disease due to rotavirus and adenovirus was more common in infants than in older children (P < 0.001 and P = 0.001, respectively). Height for age decreased from baseline to follow-up in children with diarrhea associated with rotavirus, norovirus, and adenovirus (P < 0.001). Based on these analyses, preventive measures targeted at rotavirus, norovirus, and adenovirus will be expected to have meaningful clinical impact. Cost of treatment was highest for rotavirus as well, making it an obvious target for intervention. Association of specific viruses with stunting is particularly notable, as stunting is an attributable risk factor for poor cognitive development and future productivity and economic potential.

SUBMITTER: Bray AE

PROVIDER: S-EPMC6685579 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Viral Pathogen-Specific Clinical and Demographic Characteristics of Children with Moderate-to-Severe Diarrhea in Rural Bangladesh.

Bray Abigail E AE Ahmed Shahnawaz S Das Sumon Kumar SK Khan Soroar Hossain SH Chisti Mohammad Jobayer MJ Ahmed Tahmeed T Faruque Abu S G ASG Fuchs George J GJ

The American journal of tropical medicine and hygiene 20190801 2

Diarrheal disease is a leading cause of childhood morbidity and mortality worldwide, but particularly in low-income countries in sub-Saharan Africa and South Asia. The Global Enteric Multicenter Study (GEMS) examined the infectious etiologies as well as associated demographics, socioeconomic markers, health-care-seeking behaviors, and handwashing practices of the households of children with diarrhea and their age- and gender-matched controls in seven countries over a 3-year period (December 2007 ...[more]

PMID: 31264563

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Project description:BackgroundAnemia affects ∼1.6 billion people worldwide, often owing to iron deficiency. In Bangladesh, high levels of anemia have been observed alongside little iron deficiency. Elevated concentrations of groundwater iron could constitute a significant source of dietary iron.ObjectiveWe aimed to quantify the effect of groundwater iron on anemia in nonpregnant women and young children in Bangladesh, taking into account dietary factors that may affect iron absorption.MethodsWe analyzed data on 1871 nonpregnant women and 987 children (6-37 mo) from the 2015 baseline survey of the Food and Agricultural Approaches to Reducing Malnutrition cluster-randomized trial in Sylhet, Bangladesh. We used logistic regression with robust standard errors to assess effects of self-reported groundwater iron, dietary intake, and sociodemographic characteristics on anemia, considering interactions between groundwater iron and dietary factors.ResultsGroundwater iron presence was associated with less anemia in women (OR: 0.74; 95% CI: 0.60, 0.90) and children (OR: 0.58; 95% CI: 0.44, 0.76). This effect was modified by dietary factors. In women, the effect of groundwater iron on anemia was stronger if no vitamin C-rich or heme-iron foods were consumed, and there was a clear dose-response relation. In children, intake of vitamin C-rich foods strengthened the effect of groundwater iron on anemia, and there was no evidence for interaction by intake of iron-rich foods.ConclusionsHeme-iron and vitamin C consumption reduced the effect of groundwater iron on anemia among women but not children in Bangladesh, which may be due to higher levels of iron deficiency and lower levels of iron intake among children. Vitamin C consumption appears to enhance iron absorption from groundwater in children and they may thus benefit from consuming more vitamin C-rich fruits and vegetables. Even among women and children consuming heme-iron or vitamin C-rich foods and groundwater iron, anemia prevalence remained elevated, pointing to additional causes of anemia beyond iron deficiency.This trial was registered at clinicaltrials.gov as NCT02505711.

Project description:BACKGROUND:Diarrhea and acute respiratory infection (ARI) are major causes of child mortality. We aimed to identify risk factors associated with diarrhea and ARI among children under 2 years of age in rural northern Bangladesh. METHOD:We collected information on diarrhea and ARI in the previous 14 days and the previous 6 months at 6, 12, 18 and 24?months of age as part of a longitudinal, cluster randomized effectiveness trial, the Rang-Din Nutrition Study which enrolled 4011 pregnant women at ?20 gestational weeks. Women and their children were followed up until 2 years postpartum. Information on household socioeconomic status, type of toilet, garbage disposal system, food insecurity, number of under-five children in the household, type of family, maternal characteristics and child characteristics was collected at baseline and/or at 6, 12, 18 and 24?months postpartum. Data on newborn health and feeding behaviors were collected within 72?h of delivery. Associations between potential risk factors and morbidity prevalence outcomes were assessed using logistic regression controlling for potential confounders. RESULTS:Out of 3664 live born children, we collected information from ~?3350 children at 6, 12, 18 and 24?months of age. Diarrhea in the previous 14 days, and in the previous 6 months, was associated with maternal depression score and food insecurity; diarrhea in the previous 6 months was also associated with family type (nuclear vs. joint). ARI in the previous 14 days was associated with maternal depression score, type of toilet and garbage disposal, household food insecurity and sex. Cough or nasal discharge in the past 6 months was associated with maternal depression score, type of toilet and garbage disposal, household food insecurity, sex and perceived overall physical condition of the infant after birth. CONCLUSION:Maternal depression and food insecurity appear to be important risk factors for diarrhea and respiratory infection among children under 2 years of age in this setting. These findings suggest that policies and programs that include strategies to address maternal mental health and household food insecurity may contribute to improved child health. TRIAL REGISTRATION:The trial was registered with the US National Institutes of Health at ClinicalTrials.gov, # NCT01715038 , with registration completed October 26, 2012.

Project description:BACKGROUND:Moderate-to-severe diarrhea (MSD) in the first 2?years of life can impair linear growth. We sought to determine risk factors for linear growth faltering and to build a clinical prediction tool to identify children most likely to experience growth faltering following an episode of MSD. METHODS:Using data from the Global Enteric Multicenter Study of children 0-23?months old presenting with MSD in Africa and Asia, we performed log-binomial regression to determine clinical and sociodemographic factors associated with severe linear growth faltering (loss of ??0.5 length-for-age z-score [LAZ]). Linear regression was used to estimate associations with ?LAZ. A clinical prediction tool was developed using backward elimination of potential variables, and Akaike Information Criterion to select the best fit model. RESULTS:Of the 5902 included children, mean age was 10?months and 43.2% were female. Over the 50-90-day follow-up period, 24.2% of children had severe linear growth faltering and the mean ?LAZ over follow-up was -?0.17 (standard deviation [SD] 0.54). After adjustment for age, baseline LAZ, and site, several factors were associated with decline in LAZ: young age, acute malnutrition, hospitalization at presentation, non-dysenteric diarrhea, unimproved sanitation, lower wealth, fever, co-morbidity, or an IMCI danger sign. Compared to children 12-23?months old, those 0-6?months were more likely to experience severe linear growth faltering (adjusted prevalence ratio [aPR] 1.97 [95% CI 1.70, 2.28]), as were children 6-12?months of age (aPR 1.72 [95% CI 1.51, 1.95]). A prediction model that included age, wasting, stunting, presentation with fever, and presentation with an IMCI danger sign had an area under the ROC (AUC) of 0.67 (95% CI 0.64, 0.69). Risk scores ranged from 0 to 37, and a cut-off of 21 maximized sensitivity (60.7%) and specificity (63.5%). CONCLUSION:Younger age, acute malnutrition, MSD severity, and sociodemographic factors were associated with short-term linear growth deterioration following MSD. Data routinely obtained at MSD may be useful to predict children at risk for growth deterioration who would benefit from interventions.

Project description:Zinc supplementation is an added intervention with oral rehydration solution (ORS) for treating childhood diarrhea as per World Health Organization recommendations. Our study aimed to determine the prevalence of zinc administration in addition to ORS for childhood diarrhea before hospitalization and the nutritional profile of those children admitted to the outpatient department of the largest diarrheal facility in Bangladesh. This study used a screening dataset of a clinical trial (www.clinicaltrials.gov; NCT04039828) on zinc supplementation at a Dhaka hospital (International Centre for Diarrhoeal Disease Research, Bangladesh) between September 2019 and March 2020. A total of 1,399 children aged 3-59 months were included in our study. Children were divided into two groups (one group received zinc and another did not) and were analyzed accordingly; 39.24% (n = 549) children received zinc along with ORS for the current diarrheal episode prior to hospitalization. Percentages of underweight (weight-for-age z-score < -2 SD), stunting (length/height-for-age z-score < -2 SD), wasting (weight-for-length/height z-score < -2 SD), and overweight (weight-for-age z-score > +2 SD) among these children were 13.87% (n = 194), 14.22% (n = 199), 12.08% (n = 169), and 3.43% (n = 48), respectively. In logistic regression after adjusting age, sex, and nutritional status (underweight, stunting, wasting, and overweight), association of dehydration (adjusted odds ratio [aOR]: 0.06; 95% CI: 0.03-0.11; P < 0.01), bloody diarrhea (aOR: 0.18; 95% CI: 0.11-0.92; P < 0.01), and fever (aOR: 0.27; 95% CI: 0.18-0.41; P < 0.01) were less with children who received zinc at home. Bangladesh is one of the leading zinc coverage areas globally but lags behind the target for zinc coverage in diarrheal illness among under-five children. Policymakers should scale up and formulate guidelines with sustainable strategies to encourage zinc supplementation in diarrheal episodes in Bangladesh and elsewhere.

Dataset Information

Viral Pathogen-Specific Clinical and Demographic Characteristics of Children with Moderate-to-Severe Diarrhea in Rural Bangladesh.

Publications

Viral Pathogen-Specific Clinical and Demographic Characteristics of Children with Moderate-to-Severe Diarrhea in Rural Bangladesh.

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