Next, these rates were multi- • Rate ratio: divides the age-standardized plied by the INAC population to estimate the separation rate of the First Nations number of hospitalizations for each age group population by the age-standardized rate for that would have occurred in the region if the the Western population. [...] COPD and cerebrovascular disease separation rates in the First Nations population In 2000, the First Nations hospital separation were two and a half and two times higher, rates were higher than the Western population for respectively, than the corresponding Western each of the following chronic diseases: ischemic population separation rates. [...] However, in First Nations population are higher than in the each age group (excluding the 10 to 19 year age Western population.9 Th e overall age-standard- group for asthma), the hospital separation rates ized hospital separation rate for IHD in the were higher in the First Nations population than First Nations population was two times higher in the Western population. [...] Th e overall age-standardized rate of hospital separations for cancer in the First Nations Th e hospital separation rate for cervical cancer population was similar to the separation rate in was three times higher in the First Nations the Western population. [...] When comparing the age-specifi c males and females, the largest absolute rate hospital separation rates for diabetes between diff erence was seen between First Nations and First Nations males and females, similar rates the Western population males and females in the were observed in the younger age groups (less 70 years and over age group.