Admission to hospital for pneumonia and influenza attributable to 2009 pandemic A/H1N1 Influenza in First Nations communities in three provinces of Canada

摘要: Background: Early reports of the 2009 A/H1N1 influenza pandemic (pH1N1) indicated that a disproportionate burden illness fell on First Nations reserve communities. In addition, impact different communities may have been influenced by differing provincial policies. We compared hospitalization rates for pneumonia and (P&I) attributable to pH1N1 between residents general population in three Canadian provinces. Methods: Hospital admissions were geocoded using administrative claims data from centres identify Hospitalizations P&I during both waves same time periods four previous years establish pH1N1-attributable rates. Results: Residents more likely than other (rate ratio [RR] 2.8-9.1). Hospitalization also elevated baseline period (RR 1.5-2.1) population. There was an average increase 45% over all 3 contrast, overall increased approximately 10% or less British Columbia Manitoba 33% Ontario. Subgroup analysis showed no additional risk remote isolated Ontario Manitoba, with similar noted reduction Conclusions: found pH1N1-related hospital Interprovincial differences be partly explained age structure socioeconomic status. unable confirm assumption at higher pH1N1associated hospitalizations. The aggressive approach control played role limiting those