scholarly journals Prevalence of anemia among school-age children in Ethiopia: a systematic review and meta-analysis

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Robel Tezera ◽  
Zekariyas Sahile ◽  
Delelegn Yilma ◽  
Equilnet Misganaw ◽  
Ermiyas Mulu
Nutrients ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 183 ◽  
Author(s):  
Lucía Iglesias Vázquez ◽  
Edith Valera ◽  
Marcela Villalobos ◽  
Mónica Tous ◽  
Victoria Arija

Anemia affects 1.62 billion people worldwide. Latin America and the Caribbean (LAC) comprise several developing countries where children are a population at risk. This systematic review and meta-analysis aimed to estimate the prevalence of anemia in this population. Electronic databases, reference lists, and websites of health ministries were searched until December 2018. Stratified analyses were performed using RevMan5.3 to estimate the overall prevalence of anemia in preschool and school-age children. The effectiveness of nutritional interventions was also evaluated. We included 61 studies from the 917 reviewed, which included 128,311 preschool- and 38,028 school-age children from 21 LAC countries. The number of anemic children was 32.93% and 17.49%, respectively, demonstrating a significant difference according to age (p < 0.01). No difference was observed by gender and only school-age children from low/very low socioeconomic status (SES) (25.75%) were more prone to anemia than those from middle SES (7.90%). It was not a concern in the Southern Cone but constituted a serious public health problem in the Latin Caribbean. Nutritional interventions reduced the prevalence from 45% to 25% (p < 0.01). Anemia is still a public health problem for children in LAC countries. National surveys should include school-age children. Further nutritional interventions are required to control anemia.


2014 ◽  
Vol 99 (6) ◽  
pp. 1499-1509 ◽  
Author(s):  
Brechje de Gier ◽  
Maiza Campos Ponce ◽  
Margot van de Bor ◽  
Colleen M Doak ◽  
Katja Polman

2021 ◽  
pp. 105566562110398
Author(s):  
Hope Sparks Lancaster ◽  
Kari M. Lien ◽  
Jordan Haas ◽  
Paige Ellis ◽  
Nancy J. Scherer

Objective We conducted a meta-analysis and systematic review of literature comparing pre-reading and general reading in school-age children with nonsyndromic cleft palate with or without cleft lip (NSCP/L) to their peers without NSCP/L. Methods Our literature search identified 1238 possible records. After screening we identified 11 samples for inclusion for systematic review and eight for meta-analysis. We compared 292 children with NSCP/L to 311 peers for 23 pre-reading effect sizes and 17 general reading effect sizes (EFg). We conducted a random-effects metaregression using robust variance estimation. Results On average school-age children with NSCP/L scored lower on pre-reading (EFg = −0.36) and general reading measures (EFg = −0.38) compared to their peers. We conducted post-hoc analyses on phonological awareness and word decoding effect sizes; children with NSCP/L performed lower on phonological awareness (EFg = −0.22) and word decoding (EFg = −0.39) compared to their peers. There was weak evidence that hearing status and/or speech-language functioning might moderate reading development. There was limited evidence that age or socioeconomic status moderated reading development. However, samples did not consistently report several characteristics that were coded for this project. Conclusions Our findings suggest that school-age children with NSCP/L have persistent reading problems. Further research is needed to explore reading development in children with NSCP/L, as well as the relationships among hearing, speech, language, and reading development.


BMJ Open ◽  
2017 ◽  
Vol 7 (10) ◽  
pp. e017144 ◽  
Author(s):  
Jennette P Moreno ◽  
Lydi-Anne Vézina-Im ◽  
Elizabeth M Vaughan ◽  
Tom Baranowski

IntroductionIn previous studies, it has been found that on average, children consistently gained weight during the summer months at an increased rate compared with the 9-month school year. This contributed to an increased prevalence of overweight and obesity in children. Several obesity-related interventions have occurred during or targeting the summer months. We propose to conduct a systematic review and meta-analysis of the impact of obesity prevention and treatment interventions for school-age children conducted during the summer or targeting the summer months when children are not in school on their body mass index (BMI), or weight-related behaviours.Methods and analysesA literature search will be conducted by the first author (JPM) using MEDLINE/PubMed, Cochrane Library, Scopus, CINAHL, PsycINFO, EMBASE and Proquest Dissertations and Theses databases from the date of inception to present. Studies must examine interventions that address the modification or promotion of weight-related behaviours (eg, dietary patterns, eating behaviours, physical activity (PA), sedentary behaviour or sleep) and target school-age children (ages 5–18). The primary outcomes will be changes from baseline to postintervention and/or the last available follow-up measurement in weight, BMI, BMI percentile, standardised BMI or per cent body fat. Secondary outcomes will include changes in dietary intake, PA, sedentary behaviour or sleep. Risk of bias will be assessed using the Cochrane risk of bias tool for randomised and non-randomised studies, as appropriate.Ethics and disseminationBecause this is a protocol for a systematic review, ethics approval will not be required. The findings will be disseminated via presentations at scientific conferences and published in a peer-reviewed journal. All amendments to the protocol will be documented and dated and reported in the PROSPERO trial registry.PROSPERO registration numberCRD42016041750


2021 ◽  
Author(s):  
Anthony Danso-Appiah ◽  
Amadou Djirmay Garba ◽  
Nathan C Lo ◽  
Massimiliano Orso ◽  
Kwadwo Owusu Akuffo ◽  
...  

Background WHO-recommended prevalence thresholds for deciding schistosomiasis mass drug administration (MDA) are based on anecdotal evidence and unclear. Objectives This systematic review and meta-analysis commissioned by the WHO, as part of its new schistosomiasis evidence-based guideline development, was to generate a single and global prevalence threshold that should be applied in MDA programmes. Methods We searched several databases from 1979 to 31st March 2021 without language restriction. Two reviewers selected studies, extracted data and assessed the risk of bias using relevant risk of bias tools and resolved disagreements through discussion. The review followed the PRISMA guidelines. Data were analysed and presented as prevalence reduction (PR) and relative risk (RR) for dichotomous outcomes or mean difference for continuous outcomes with their 95% confidence intervals (CIs). Meta-regression of observations on prevalence rates and intensity of infection of MDA programmes and sensitivity analyses to assess the robustness of the results to the risk of bias components were performed. Evidence on benefits, harms, values, preferences, compliance, acceptability, equity and feasibility were also assessed. The overall level of evidence was graded using GRADE. Results Out of 1,232 studies retrieved, 38 studies met our inclusion criteria and 34 studies were included in the meta-analysis. No direct relation was observed between prevalence and intensity of infection. Praziquantel reduced prevalence of S. haematobium in school age children (SAC) at 12 months (RR 0.38, 95% CI 0.28 to 0.52; 8 studies, n=37,868); at 24 months (RR 0.30; 95% CI 0.30 to 0.52; 7 studies; n=37107); at 36 months (RR 0.39, 95% CI 0.21 to 0.71; 5 studies, n=28,146). There was no significant reduction in prevalence at 48 months (2 studies, n=10,954). For S. mansoni, there were reductions in prevalence at 12 months (RR 0.56, 95% CI 0.46 to 0.69; 14 studies, n=86,073); 24 months (RR 0.46; 95% CI 0.32 to 0.66; 14 studies; n=83,721);36 months (RR 0.44, 95% CI 0.33 to 0.58; 7 studies, n=70,933) and at 48 months (RR 0.25, 95% CI 0.11 to 0.59; 5 studies; n=27,483). Further analyses were performed from a series of created prevalence thresholds of 5%, 10%, 15%, 20%, 30% and ≥40% which showed differences in effect of MDA when each of the thresholds was applied. For annual MDA of school age children (SAC), school-based treatment (SBT) appears to perform better than community-wide treatment (CWT) in terms of prevalence reduction. For the different schistosome species, the model suggests, using the same prevalence threshold, it will take shorter time to reach elimination for S. haematobium than S. mansoni; annual MDA using SBT approach for S. haematobium will require about 10 years to achieve elimination whereas it will take over 10 years to around 15 years to achieve elimination for S. mansoni. Conclusion The evidence presented in this systematic review suggests that 10% prevalence should be used as the global prevalence threshold for implementing MDA in endemic countries.


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