Fig. 4From: Assessing the associations between Aedes larval indices and dengue risk in Kalutara district, Sri Lanka: a hierarchical time series analysis from 2010 to 2019The pooled RR of dengue by BI at lag 0–3 months in Kalutara district, Sri Lanka, 2010–2019. The Y-axis represents the RR for dengue incidence, with a RR of 1.0 at a BI of 0. The shaded area in gray represents the 95% CIBack to article page