Length of Stay
concussion, head injuries
The overall effect of implementation on total length of stay was not significant (mean change − 10.25 min, 95% CI − 26.68, 6.18), nor was the specific contrast of pre- versus post-implementation in the segmented model (mean change 0.53 min, 95% CI − 14.47, 15.54). Time from triage to physician initial assessment increased significantly after implementation in the overall model at 3 of 5 sites (intervention X site interaction, Wald Longer lengths of stay, as well as longer times from physician initial assessment to disposition, were associated with higher acuity triage and diagnoses of concussion relative to other head injuries. Longer times from physician initial assessment to disposition were also associated with younger and older ages at injury and longer travel distances. Longer times from triage to physician initial assessment were associated with lower acuity triage and shorter travel distances. All three length of stay variables were related to calendar time.