Socio-environmental determinants of parasitic intestinal infections among children: a cross-sectional study in Nigeria

Background: Intestinal parasitic infections are a major public health problem among school-aged children, especially those residing in rural areas. These infections predispose the children to several other health problems. This study assesses intestinal parasitic infections among school children in a rural area in Nigeria and their socioenvironmental determinants. Methods: This cross-sectional study included 250 primary school-age children from three randomly selected schools in Elemere, a poor rural area in Kwara State, Nigeria. A semi-structured questionnaire was used to record the socio-demographic data, and stool samples were microscopically examined for intestinal parasites. Results: The overall prevalence of intestinal parasites was 23.6% (59/250). Of the infected children, the most common parasite was Ascaris lumbricoides 50.8% (30/59), followed by Giardia lamblia 28.8% (17/59), Entamoeba spp.16.9% (10/59) and Dipylidium caninum in 3.4% (2/59). Rural domicile was associated with parasitic infections (P= 0.036) compared to a semi-urban or urban residence. Compared to younger age groups, children in the higher age groups had 64% (95% confidence interval,0.15–0.90;P= 0.03) lesser parasitic infections. Conclusion: Intestinal parasitic infections are common in school children in the studied area, and may be associated with unclean water sources, poor hygiene, and economic conditions. General health education should emphasize cleanliness, personal hygiene and sanitation to prevent and control parasitic intestinal infections among schoolchildren in these communities.