S. haematobium prevalences in children visiting 16 primary schools on Pemba in 2013, stratified by diagnostic approach.

UF: initial urine filtration at the day of sample collection between March and May 2013; QCUF: second reading of the urine filtration slide for quality control purposes between November 2013 and January 2014; UCP-LF CAA: up-converting phosphor-lateral flow assay detecting circulating anodic antigen in urine; UCAA2000+: UCP-LF CAA prepared with 1.5 ml of urine, indecisive results were considered as positive; UCAA2000-: UCP-LF CAA prepared with 1.5 ml of urine, indecisive results were considered as negative; UCAA250+: UCP-LF CAA prepared with 250 μl of urine, indecisive results were considered as positive; UCAA250-: UCP-LF CAA prepared with 250 μl of urine, indecisive results were considered as negative.*Only participants with a UCAA2000 were included in analysis.S. haematobium prevalences in children visiting 16 primary schools on Pemba in 2013, stratified by diagnostic approach.