Dwelling infestation by triatomine bugs in 39 municipalities, Cochabamba, Bolivia, 2000–2011*: linear mixed model results, with year specified as an ordinal, fixed effect (number of parameters k = 15; BIC = 812.32; AICc = 757.11).

*No infestation surveys were conducted in 2002.The model used N = 325 observations (year-specific municipality-level dwelling infestation rates), weighted by a measure of bug-search effort; the inclusion of the one-year lagged temporal autocorrelation covariate censored observations for year 2000 (see text for details).BIC, Bayesian information criterion; AICc, second-order Akaike's information criterion.Fixed-effect coefficient estimates are in bold if different from zero at the 5% level; SE, standard error; CI95, lower and upper limits of the 95% confidence interval.REML, restricted maximum likelihood; σ2, random effect variance estimate; %σ2, percentage of total variance that is attributable to differences in average infestation among municipalities (‘Municipality’), also known as intra-class correlation, and to year-to-year variation in infestation rates within municipalities (‘Residual’). Ratio = Municipality/Residual variance estimates.