Table 2.

Comparison of the presence or absence of lymphatic filariasis infection indicators in humans (microfilaria) and mosquitoes (filarial DNA) by primary sampling units (PSUs) in Samoa, 2019

PSU	Total number of PSUs	No. (%) of PSUs with Mf-positive humans	No. (%) of PSUs with PCR-positive mosquito pools	Concordance (%)	Cohen’s kappa statistic
All	35	13 (37%)	28 (80%)	40	− 0.04
Lower Ag prevalence (≤ 2.5%)	18	3 (17%)	14 (40%)	17	−0.21
Higher Ag prevalence (> 2.5%)	17	10 (59%)	14 (40%)	65	0.20

PSUs were stratified by W. bancrofti antigen prevalence