2×2 descriptive tables for S. mansoni infection as determined by CCA and microscopy over time; sensitivity and specificity of CCA were estimated assuming that the combination of 6 KK measurements over 3 days is 100% sensitive and 100% specific.

aThis is derived by taking the ratio of “true positives” over the sum of “true positives” and “false negatives”. For instance for children at baseline number of “true positives” is 148 and number of “false negatives” is 17.bThis is derived by taking the ratio of “true negatives” over the sum of “true negatives” and “false positives”. For instance for children at baseline number of “true negatives” is 2 and number of “false positives” is 2.c95% Exact binomial confidence intervals are provided in brackets.General note: Complete case data at each time point are displayed and contributed to the calculations of empirical sensitivities and specificities.