Abstract

BackgroundAs part of malaria characterization study in the South-Tongu district of Ghana, the current study was conducted to explore relationships between malaria, schistosomiasis, soil transmitted helminths and malnutrition in riparian community settings that had hitherto encountered episodes of mass deworming exercises.MethodsSchool-age children were enrolled in a cross-sectional study from April through July 2012. Stool and urine samples were examined respectively for helminths and Schistosoma haematobium. Blood samples were analyzed for malaria parasites and haemoglobin (Hb) concentrations, respectively. Anthropometric indices were measured. Relationships were determined using generalized linear models.ResultsThe results show low numbers of asymptomatic Plasmodium falciparum (9.2 %, n = 37/404) and S. haematobium (2.5 %, n = 10/404) infections. The associations between significance terms in the multivariate analysis for P. falciparum infections were further assessed to test the significance of the product terms directly i.e., age in years [adjusted odds ratio (AOR), 3.1; 95 % confidence interval (CI) 1.1–5.6], Hb concentration (AOR = 0.71; 95 % CI 0.42–2.3), and stunted malnutrition (AOR, 8.72; 95 % CI 4.8–25.1). The P. falciparum-associated decrease in mean Hb concentration was 2.82 g/dl (95 % CI 1.63–4.1 g/dl; P = 0.001) in stunted children, and 0.75 g/dl (95 % CI 1.59–0.085 g/dl; P = 0.076) in the non-stunted cohort. The anaemia-associated decrease in mean parasitaemia in stunted children was 3500 parasites/µl of blood (95 % CI 262.46–6737.54 parasites/µl of blood; P = 0.036), and in non-stunted children 2127 parasites/µl of blood (95 % CI −0.27 to 4.53; P = 0.085). Stunted malnutrition was the strongest predictor of S. haematobium infection (AOR = 11; 95 % CI 3.1–33.6) but significant associations as described for P. falciparum infections were absent. The population attributable risk of anaemia due to P. falciparum was 6.3 % (95 % CI 2.5–9.3), 0.9 % (95 % CI 0.4–2.3) for S. haematobium, and 12.5 % (95 % CI 9.11–19.52) for stunted malnutrition.ConclusionPlasmodium falciparum, S. haematobium, intestinal helminths and their co-infections were uncommon in our school-age children. Stunting exacerbated the extent to which malaria was associated with loss in Hb concentration.Electronic supplementary materialThe online version of this article (doi:10.1186/s13104-016-2025-3) contains supplementary material, which is available to authorized users.

Highlights

  • As part of malaria characterization study in the South-Tongu district of Ghana, the current study was conducted to explore relationships between malaria, schistosomiasis, soil transmitted helminths and malnutrition in riparian community settings that had hitherto encountered episodes of mass deworming exercises

  • We describe as our primary outcome, data from a district survey on school-age children (SAC) (6–13 years) regarding the prevalence of malaria, schistosomiasis, and intestinal helminths in riparian community settings that had hitherto encountered several episodes of preventive chemotherapy including mass deworming exercises; and explore relationships between such infections and nutritional inadequacies

  • Of the total 404 children, the prevalence of asymptomatic malaria was 9.2 % (n = 37/404; 95 % confidence interval (CI) 6.6–12.5)—P. falciparum accounted for all infections

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Summary

Introduction

As part of malaria characterization study in the South-Tongu district of Ghana, the current study was conducted to explore relationships between malaria, schistosomiasis, soil transmitted helminths and malnutrition in riparian community settings that had hitherto encountered episodes of mass deworming exercises. There is the West African international parasite control (WACIPAC) whose initiatives have included the institution of preventive measures on schistosomiasis and soil transmitted helminths [6]. We describe as our primary outcome, data from a district survey on school-age children (SAC) (6–13 years) regarding the prevalence of malaria, schistosomiasis, and intestinal helminths in riparian community settings that had hitherto encountered several episodes of preventive chemotherapy including mass deworming exercises; and explore relationships between such infections and nutritional inadequacies

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