Descriptive measures like the mean and standard deviation (SD), geometric means, frequencies, and proportions were used to summarize data. Polyparasitism was defined as infection with ≥ 2 of the parasites (S. haematobium/Plasmodium/STH). Differences in proportions between populations were compared using Chi (χ2) test. Geometric mean parasite density (GMPD) of P. falciparum and schistosome egg counts by age and sex were compared using analysis of variance (ANOVA) and the Student’s t-test, respectively and the correlation coefficient (r) was used to establish the relationship between the different parasite densities. Geometric means were computed for those positive only and the log transformed counts were used in the analysis. The adjusted odds ratio (aOR) in the multivariate analysis was used to see the strength of the association of the risk factors with infection. The 95% confidence interval (CI) was reported and P-values < 0.05 were considered indicative of statistical significance. The ability of a measurable morbidity to discriminate between infections and the diagnostic performance was evaluated using the receiver operating characteristics (ROC) curve analysis and the strength of agreement was determined by estimating the Kappa value. Kappa (к) was calculated using a Graphpad calculator [35] and the values interpreted as stated by Landis [36]. All data was analysed using IBM-Statistical Package for Social Science (SPSS) version 21 (IBM-SPSS Inc., Chicago, IL, USA).

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