Table 1. Baseline characteristics.

		RDT +	RDT −	Total (N)
District	North A	42 (34.7%)	2182 (57.9%)	2224
	Micheweni	79 (65.3%)	1586 (42.1%)	1665
Age	5 y	36 (29.8%)	1786 (47.4%)	1822
	5–14 y	32 (26.4%)	496 (13.2%)	528
	>14 y	53 (43.8%)	1472 (39.1%)	1525
	Data missing	0	14 (0.3%)	14
Sex	Male	65 (53.7%)	1611 (42.8%)	1676
	Female	56 (46.3%)	2156 (57.2%)	2212
	Data missing	0	2 (100%)	2
Pregnancy		3 (2.5%)	87 (2.3%)	90
		RDT +	RDT −	P-value
Mean axillary temp.°C		38.3	37.4	<0.001
Proportion withaxillary temp. ≥37.5°C		74 (66.7%)	1465 (41.5%)	<0.001
Data missing		10 (8.3%)	240 (6.4%)	0.350
ITN/LLIN use		65 (53.7%)	3193 (84.7%)	<0.001
Travel history	≤28 days	30 (24.8%)	356 (9.5%)	<0.001
	Domestic	21 (17.4%)	325 (8.6%)	0.003
	Abroad	9 (7.4%)	31 (0.8%)	<0.001

Domestic = History of travel within Zanzibar.

Abroad = History of travel outside Zanzibar.

ITN = Insecticide-treated nets.

LLIN = long-lasting insecticidal nets.