Figure 3.

Associations between hospitalizations for non-indigenous and indigenous people with estimated ambient PM₁₀. Point estimates and 95% confidence intervals for the association between hospital admissions for non-indigenous and indigenous people with estimated ambient PM₁₀ in Darwin 1996–2005, as the percentage change in relative risk per 10 μg/m³ rise in PM₁₀. α represents the optimal level of a multiplication factor for the smooth function of time, selected using sensitivity analysis.