Table 3.

Leptospiral seroprevalence and population density on Tutuila, American Samoa 2010

Population density	Number Sampled	Seroprevalence of most common serovars			All serovars
		Hebdomadis	LT 751	LT 1163
	n	% (95% CI)	% (95% CI)	% (95% CI)	% (95% CI)
Low	234	9.0 (5.6 - 13.4) %	5.6 (3.0 - 9.3) %	5.6 (3.0 - 9.3) %	18.4 (13.6 - 23.9) %
Medium	245	9.4 (6.0 - 13.8) %	3.7 (1.7 - 6.9) %	4.9 (2.6 - 8.4) %	15.9 (11.6 - 21.1) %
High	242	11.6 (7.8 - 16.3) %	3.7 (1.7 - 6.9) %	0 (0 - 1.5) %	14.5 (10.3 - 19.5) %