Objectives: To describe the use of standardized protocols (SPs) in emergency departments (EDs) across Ontario for childhood asthma and analyze the association of SPs with hospital admissions, 7-day ED re-visits, and outpatient follow-up visits. Methods: Population-based retrospective cohort study using health administrative data and survey data. EDs were categorized as having the optimal, other, or no SP for each outcome. Associations were tested with generalized estimating equations. Results: Between 2006/04/14-2009/02/28, 46,510 children with asthma were seen in 146 EDs, with 43 (29.5%) having SPs. Children treated in EDs with the optimal SP compared to no SP had no significant differences in hospital admissions (AOR 1.17; 95% CI 0.91, 1.49) or ED re-visits (AOR 1.09; 95% CI 0.85, 1.40) but were more likely to have follow-up visits (AOR 1.27; 95% CI 1.02, 1.59). Conclusions: SPs for childhood asthma are not common in Ontario EDs and had little impact on outcomes measured.

Objectives: To describe the use of standardized protocols (SPs) in emergency departments (EDs) across Ontario for childhood asthma and analyze the association of SPs with hospital admissions, 7-day ED re-visits, and outpatient follow-up visits. Methods: Population-based retrospective cohort study using health administrative data and survey data. EDs were categorized as having the optimal, other, or no SP for each outcome. Associations were tested with generalized estimating equations. Results: Between 2006/04/14-2009/02/28, 46,510 children with asthma were seen in 146 EDs, with 43 (29.5%) having SPs. Children treated in EDs with the optimal SP compared to no SP had no significant differences in hospital admissions (AOR 1.17; 95% CI 0.91, 1.49) or ED re-visits (AOR 1.09; 95% CI 0.85, 1.40) but were more likely to have follow-up visits (AOR 1.27; 95% CI 1.02, 1.59). Conclusions: SPs for childhood asthma are not common in Ontario EDs and had little impact on outcomes measured.