Table 2. Dwelling infestation by triatomine bugs in 39 municipalities within Chagas disease risk areas, Cochabamba, Bolivia, 2000–2011^*: eco-regional descriptive statistics.

Eco-region	Municipalities•	Proportion of dwellings found infested#
		Mean	SEM	Median	IQR	Maximum
Dry forest§	27	0.14	0.015	0.03	0.01–0.84	0.96
Puna	8	0.07	0.020	0.01	0.00–0.02	0.93
Yungas	4	0.04	0.016	0.01	0.00–0.03	0.45
Overall	39	0.12	0.012	0.02	0.01–0.07	0.96

*No data available for 2002.

^•Number of municipalities with ≥50% of territory originally covered by each eco-region type (i.e., disregarding deforestation or other land-use changes).

^#Summary measures of municipality-level infestation rates across years over the study period.

^§Non-parametric rank-sum tests and Welch Anova (allowing for unequal variances) suggested higher overall infestation rates in these municipalities.

SEM, standard error of the mean; IQR, inter-quartile range.