Table 1.

Study population and observed antigen prevalence from 2018 and 2019 household surveys.

Year	Number of households	Average household size	Number of participants	Crude antigen prevalence in household members (95% CI)	Median Crude antigen prevalence by PSU (range)
2018	495	4.8 (min 1, max 26)	2322	4.4% (3.7–5.4%)	4.4% (0–15.3%)
2019	542	4.8 (min 1, max 20)	2594	4.7% (4.0–5.6%)	2.6% (0–18.7%)

Sample size and crude antigen prevalence from household surveys across 35 primary sampling units in Samoa (participants aged ≥ 5 years).