Table 1.

Diagnostic performance of a mobile phone microscope compared with conventional light microscopy for the diagnosis of Schistosoma haematobium infection

Organism	Conventional microscope n (%)	Mobile phone microscope
	N = 60	Sensitivity (95% CI)	Specificity (95% CI)	PPV (95% CI)	NPV (95% CI)
All samples with S. haematobium infection	43 (72.9)	72.1 (56.1–84.2)	100.0 (75.9–100.0)	100.0 (86.3–100.0)	57.1 (37.4–75.0)
Low-intensity infection (≤ 50 eggs/10 mL urine)	35 (59.3)	65.7 (47.7–80.3)	NA	NA	NA
High-intensity infection (> 50 eggs/10 mL urine)	8 (13.6)	100.0 (59.8–100.0)	NA	NA	NA

CI = confidence interval; NPV = negative predictive value; PPV = positive predictive value.