Association between Iron Supplementation and the Presence of Diarrhea in Peruvian Children Aged 6–59 Months: Analysis of the Database of the Demographic Health Survey in Peru (DHS, Peru), Years 2009–2019

Introduction: According to the World Health Organization (WHO), anemia is a severe public health problem when the prevalence is ≥ 40%. In 2019, in Peru, 40.1% of children (age 6 to 35 months) are diagnosed as anemic. This is a concern since, despite the efforts of the governments to reduce the prevalence, the problem has stagnated since 2011. The treatment applied to deal with anemia is iron supplementation. Although iron is essential for cell function, an excess can produce adverse responses, such as gut inflammation affecting microbiota and resulting in diarrheic episodes. Objective: To determine the association between diarrhea and iron supplementation in children with and without anemia, controlling for different socio-demographic variables. Design: We conducted via logistic regression to obtain diarrhea prevalence ratios, adjusted by age, sex, geographic region, water and sanitation service, and rurality. The survey asked for recent episodes of diarrhea during the last 7 days; similarly, after the consumption of iron supplements during the last 12 months before the survey. Setting: Peru Subjects: The Demographic and Health Survey (DHS) is conducted annually at home among 14,202 children on average (2009 – 2019). Results: Iron supplementation in the last seven days (PR=1.09) or the last twelve months (PR=1.19) (p<0.0001) was associated with an increased risk of diarrhea. The same association was observed between iron supplementation and the presence of anemia. Conclusions: Iron supplementation is associated with diarrhea and over-use in children should be avoided.

Analysis of risk-factors associated with diarrhea prevalence among underfive children in Galkayo District Puntland State, Somalia

Background: The study analysed risk factors associated with diarrhea prevalence among underfive children in Galkayo District Puntland State, Somalia.Methods: The study used analytical cross-sectional survey conducted in Galkayo, from February to March 2020. The inclusion criteria were caregivers with underfive children, and exclusion criteria were children over five years, caregivers who have no underfive children and children with chronic diarrhea. Sample of 385 was calculated using Yamane formula. Caregivers were randomly selected using simple random sampling after cluster sampling. The researcher administered structured questionnaires, collected data from eligible caregivers using interview guide and elicited on diarrhea perceptions. Quantitative data was analysed using SPSS, qualitative data was identified common and sub-themes.Results: The study found diarrhea was affecting 30% of underfive children. The presence of two under-fives in the household was associated with high diarrhea prevalence [OR=1.93, 95% CI= (1.21, 3.08)]. Low educational level of underfive caregivers were associated with high diarrhea occurrence [OR=1.36, 95% CI= (0.68, 2.66)]. Households headed by non-biological mothers, diarrhea prevalence was high [OR=0.06, 95% CI= (0.00, 0.50) and OR=0.17, 95% CI= (0.03, 0.79)] respectively. Those children under the care of employed caregivers, diarrhea occurrence was high [OR=2.41 (0.99, 5.80)]. Poor personal hygiene (32%), sanitation (28%), and water quality (28%) were attributed to the cause of diarrhea among children.Conclusions: The study recommends, practice of child spacing, improve caregivers’ basic education to better understand risk factors and seek treatment, establish routine water quality surveillance at source and at household level, conduct awareness behaviour change by promotion of handwashing.

Diarrhea Prevalence and Child Growth Faltering Are Associated with Subsequent Adverse Child Developmental Outcomes in Bangladesh (CHoBI7 Program)

Millions of young children annually are not meeting their developmental potential in low- and middle-income countries. Previous studies have shown that diarrheal diseases during early life are associated with subsequent malnutrition. This prospective cohort study of 576 children under 5 years was conducted in urban Dhaka, Bangladesh, to investigate the association between diarrhea prevalence, child growth, and child cognitive developmental outcomes. Height and weight were measured at baseline and a 12-month follow-up. Diarrhea prevalence was assessed through monthly surveillance visits. Developmental outcomes were assessed by communication, fine motor, gross motor, personal social, problem-solving, and combined developmental scores measured by the Extended Ages and Stages Questionnaire (EASQ) at the 12-month follow-up visit. To assess the association between diarrhea prevalence, child growth, and child developmental outcomes, linear regression models were fit using generalized estimating equations to account for clustering at the household level and to approximate 95% CIs. Diarrhea prevalence was negatively associated with change in height-for-age (HAZ) Z-scores from baseline to the 12-month follow-up (coefficient −0.85 [95% CI: −1.42, −0.28]). Diarrhea prevalence was a significant predictor of combined EASQ Z-scores with and without baseline stunting included in the model (−0.89 [95% CI: −1.67, −0.09] [baseline stunting included]) and (−0.88 [95% CI: −1.69, −0.07]). Change in HAZ from baseline to the 12-month follow-up was positively associated with follow-up combined EASQ Z-scores (0.28 [95% CI: 0.15, 0.42]). High diarrhea prevalence and linear growth faltering were associated with negative cognitive developmental outcomes among children residing in urban Dhaka, Bangladesh. Furthermore, high diarrhea prevalence was associated with negative child cognitive developmental outcomes with stunting included in the model, suggesting an effect of diarrhea on cognition independent of stunting.

Linear Growth Faltering Is Associated with Subsequent Adverse Child Cognitive Developmental Outcomes in the Democratic Republic of the Congo (REDUCE Program)

Globally, 140 million children under 5 years of age are estimated to be stunted. Previous studies have found an association between stunting and poor cognitive outcomes. However, there is limited evidence of this association in sub-Saharan African settings such as the Democratic Republic of the Congo (DRC). This prospective cohort study of 286 children under 5 years was conducted in rural DRC to investigate the association between diarrhea prevalence, child growth, and child cognitive developmental outcomes. Developmental outcomes were assessed by communication, fine motor, gross motor, personal social, problem-solving, and combined developmental scores measured by the Extended Ages and Stages Questionnaire (EASQ) at a 6-month follow-up visit. Height and weight were measured at baseline and a 6-month follow-up. Diarrhea prevalence was assessed through surveillance visits. Diarrhea prevalence was not associated with follow-up combined EASQ Z-scores at the 6-month follow-up (coefficient: −0.06 [95% CI: −0.29, 0.17]). Each additional standard deviation (SD) increase in height for age z-scores from baseline to the 6-month follow-up increased combined EASQ Z-scores by 0.22 (95%: 0.14, −0.31) SDs. Each additional SD increase in weight for age z-scores from baseline to the 6-month follow-up increased combined EASQ Z-scores by 0.21 (95%: 0.10, −0.32) SDs. Linear growth faltering and reduced weight gain were associated with reduced cognitive developmental outcomes among children residing in rural DRC. Interventions are urgently needed for this susceptible pediatric population to improve child growth and cognitive developmental outcomes.

Evaluation of Water, Sanitation, and Hygiene, Behavioral Aspects, Household State for the Diarrhea Prevalence among Students in the Valley of Sinabung Volcano, North Sumatera, Indonesia

Diarrhea stands as a result of the inter-variable relationships, including behavior, environmental aspect, and household states. The study aimed to conduct an epidemiologic survey of diarrhea prevalence and several existing risk factors of diarrhea. A community-based surveillance and in-depth interview were conducted following the JMP ladder service for WASH and government regulation and it enrolled 135 children of a public primary school, SDN 040494, and households in the Valley of Sinabung Volcano, North Sumatera, Indonesia between June and October 2019. There were only two lowest categories of each WASH (Water, Sanitation and Hygiene) indicator. Multivariate analysis has also demonstrated a high likelihood of diarrhea among the population in limited settings for hygiene (p-value 0.012, AOR 7.892 95%CI 2.485, 25.064) and low daily income (p-value 0.015, AOR 3.079 95%CI 1.148, 8.260). Improvement of hygienic practices is mandatory as well as preventing volcanic eruption implications to the economy of the local community.

Lentinan administration alleviates diarrhea of rotavirus-infected weaned pigs via regulating intestinal immunity

Background Lentinan (LNT) may regulate many important physiological functions of human and animals. This study aimed to verify whether LNT administration could relieve diarrhea via improving gut immunity in rotavirus (RV)-challenged weaned pigs. Methods Twenty-eight weaned pigs were randomly fed 2 diets containing 0 or 84 mg/kg LNT product for 19 d (n = 14). RV infection was executed on d 15. After extracting polysaccharides from LNT product, its major monosaccharides were analyzed. Then, LNT polysaccharide was used to administrate RV-infected IPEC-J2 cells. Results Dietary LNT supplementation supported normal function of piglets even when infected with RV, as reflected by reduced growth performance loss and diarrhea prevalence, and maintained gut immunity (P < 0.05). The polysaccharide was isolated from LNT product, which molecular weight was 5303 Da, and major monosaccharides included glucose, arabinose and galactose. In RV-infected IPEC-J2 cells, this polysaccharide significantly increased cell viability (P < 0.05), and significantly increased anti-virus immunity via regulating pattern recognition receptors and host defense peptides (P < 0.05). Conclusion Those results suggest that LNT administration increases the piglets’ resistance to RV-induced stress, likely by supporting intestinal immunity.

Diarrhea prevalence in a randomized, controlled prospective trial of point-of-use water filters in homes and schools in the Dominican Republic

Background Lack of sustainable access to clean drinking water continues to be an issue of paramount global importance, leading to millions of preventable deaths annually. Best practices for providing sustainable access to clean drinking water, however, remain unclear. Widespread installation of low-cost, in-home, point of use water filtration systems is a promising strategy. Methods We conducted a prospective, randomized, controlled trial whereby 16 villages were selected and randomly assigned to one of four treatment arms based on the installation location of Sawyer® PointONE™ filters (filter in both home and school; filter in home only; filter in school only; control group). Water samples and self-reported information on diarrhea were collected at multiple times throughout the study. Results Self-reported household prevalence of diarrhea decreased from 25.6 to 9.76% from installation to follow-up (at least 7 days, and up to 200 days post-filter installation). These declines were also observed in diarrhea with economic or educational consequences (diarrhea which led to medical treatment and/or missing school or work) with baseline prevalence of 9.64% declining to 1.57%. Decreases in diarrhea prevalence were observed across age groups. There was no evidence of a loss of efficacy of filters up to 200 days post-filter installation. Installation of filters in schools was not associated with decreases in diarrhea prevalence in school-aged children or family members. Unfiltered water samples both at schools and homes contained potential waterborne bacterial pathogens, dissolved heavy metals and metals associated with particulates. All dissolved metals were detected at levels below World Health Organization action guidelines. Conclusions This controlled trial provides strong evidence of the effectiveness of point-of-use, hollow fiber membrane filters at reducing diarrhea from bacterial sources up to 200 days post-installation when installed in homes. No statistically significant reduction in diarrhea was found when filters were installed in schools. Further research is needed in order to explore filter efficacy and utilization after 200 days post-installation. Trial registration ClinicalTrials.gov, NCT03972618. Registered 3 June 2019—retrospectively registered.

Diarrhea prevalence in a randomized, controlled prospective trial of point-of-use water filters in homes and schools in the Dominican Republic

BackgroundLack of sustainable access to clean drinking water continues to be an issue of paramount global importance, leading to millions of preventable deaths annually. Best practices for providing sustainable access to clean drinking water, however, remain unclear. Widespread installation of low-cost, in-home, point of use water filtration systems is a promising strategy.MethodsWe conducted a prospective, randomized, controlled trial whereby 16 villages were selected and randomly assigned to one of four treatment arms based on the installation location of Sawyer® PointONE™ filters (filter in both home and school; filter in home only; filter in school only; control group). Water samples and self-reported information on diarrhea were collected at multiple times throughout the study.ResultsSelf-reported household prevalence of diarrhea decreased from 25.6% to 9.76% from installation to follow-up (at least 7 days, and up to 200 days post-filter installation). These declines were also observed in diarrhea with economic or educational consequences (diarrhea which led to medical treatment and/or missing school or work) with baseline prevalence of 9.64% declining to 1.57%. Decreases in diarrhea prevalence were observed across age groups. There was no evidence of a loss of efficacy of filters up to 200 days post filter installation. Installation of filters in schools was not associated with decreases in diarrhea prevalence in school-aged children or family members. Unfiltered water samples both at schools and homes contained potential waterborne bacterial pathogens, dissolved heavy metals and metals associated with particulates. All dissolved metals were detected at levels below World Health Organization action guidelines.ConclusionsThis controlled trial provides strong evidence of the effectiveness of point-of-use, hollow fiber membrane filters at reducing diarrhea from bacterial sources up to 200 days post installation when installed in homes. No statistically significant reduction in diarrhea was found when filters were installed in schools. Further research is needed in order to explore filter efficacy and utilization after 200 days post-installation. Trial registration: ClinicalTrials.gov, NCT03972618. Registered 3 June 2019 - Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT03972618.

Lentinan Administration Alleviates Diarrhea of Rotavirus-Infected Weaned Pigs via Regulating Intestinal Immunity

BackgroundThis study aimed to verify whether lentinan (LNT) administration could relieve diarrhea via improving gut immunity in rotavirus (RV)-challenged weaned pigs. MethodsTwenty-eight weaned pigs were randomly fed 2 diets containing 0 or 84 mg/kg LNT product for 19 d (n = 14). RV infection was executed on d 15.ResultsDietary LNT supplementation supported normal function of piglets even when infected with RV, as reflected by reduced growth performance loss and diarrhea prevalence, and maintained gut immunity (P < 0.05). The polysaccharide was isolated from LNT product, whose molecular weight was 5303 Da, and major monosaccharides included glucose, arabinose and galactose. In RV-infected IPEC-J2 cells, this polysaccharide significantly increased cell viability (P < 0.05), and significantly increased anti-virus immunity via regulating pattern recognition receptors and host defense peptides (P < 0.05). ConclusionThose results suggest that LNT administration increases the piglets’ resistance to RV-induced stress, likely by supporting intestinal immunity.