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PSNet: Patient Safety Network
Journal Article

A system-wide approach to explaining variation in potentially avoidable emergency admissions: national ecological study.

O'Cathain A, Knowles E, Maheswaran R, et al. BMJ quality & safety. 2014;23:47-55.

This large retrospective observation study examined hospital- and community-level factors associated with avoidable hospital admissions. Areas with lower-income populations and less access to primary care were more likely to have preventable admissions. Ambulance service and emergency department care delivery also explained variation in admission rates.