Finally, the number of individuals suffering chronic pain is projected to increase dramatically in Alberta over the coming decades due to the aging of the population, even if the prevalence of chronic pain does not change. [...] Chronic Pain in Alberta 7 The NPHS is comprehensive in scope, and includes questions relevant to an examination of the prevalence of chronic pain and the characteristics of chronic pain sufferers. [...] However, the uniqueness of the data and the strength of the findings dictated that the results be presented here. [...] Chronic Pain in Alberta 18 The current analysis attempted to control for (or model) the effects of co- morbidity, so that the resulting estimates of pain prevalence within the chronic diseases should be thought to refer to individuals suffering from that single chronic disease alone. [...] The base analysis was a multinomial logistic regression in which each of the pain categories within the combined pain scale were predicted by the presence or absence of each of the 22 chronic disease categories queried by the NPHS.