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The frequencies of haematuria and proteinuria among children of two rural communities with different Schistosoma haematobium endemicity from Liberia and Tanzania were compared. Although the prevalence and intensity of S. haematobium infections were lower in the Tanzanian community, the frequencies of haematuria and proteinuria were significantly higher when compared to the Liberian community. The semi-quantitative dip stick tests for haematuria and proteinuria showed a comparable, good specificity (haematuria 85%, proteinuria 80%), but a community-specific sensitivity. The dip stick test for haematuria detected 85% (proteinuria 82%) of all S. haematobium infected subjects in Tanzania compared to 68% (proteinuria 57%) in Liberia. The significance of these observations in relation to S. haematobium related morbidity is discussed.
Tanner et al. (Thu,) studied this question.