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Table 5 Schistosoma haematobium egg counts on discrepant slides when examined by original or quality control urine filtration (QCUF) microscopy

From: Urogenital schistosomiasis elimination in Zanzibar: accuracy of urine filtration and haematuria reagent strips for diagnosing light intensity Schistosoma haematobium infections

Microscopic examination n %
Children Slides with original and QCUF reading 4477  
Slides with positive results in both readings 1096  
Slides with negative results in both readings 3087  
Slides with discrepant results (one reading positive, one reading negative) 294  
S. haematobium egg counts on discrepant slides   
1 egg 93 31.6
2 eggs 57 19.4
3 eggs 39 13.3
4 eggs 23 7.8
5 eggs 14 4.8
1–5 eggs 226 76.9
6–10 eggs 36 12.2
11–49 eggs 22 7.5
50+ eggs 10 3.4
Adults Slides with original and QCUF reading 1566  
Slides with positive results in both readings 199  
Slides with negative results in both readings 1292  
Slides with discrepant results (one reading positive, one reading negative) 75  
S. haematobium egg counts on discrepant slides   
1 egg 34 45.3
2 eggs 12 16.0
3 eggs 6 8.0
4 eggs 7 9.3
5 eggs 4 5.3
1–5 eggs 63 84.0
6–10 eggs 10 13.3
11–50 eggs 1 1.3
51+ eggs 1 1.3