Therese Lindberg

therese.lindberg@cambio.se

@CambioCDS

To estimate severity of overcrowding in community emergency departments.

CEDOCS Score = –29.53 + (3.14 x critical care patients in the ED) + (0.52 x waiting time of longest admitted patient) + (1.14 x number of patients in waiting room) + (20.55 x ratio of total ED patients to number of ED beds) + (0.00124 x ED visits per year) + A + B + C + D (additional variables based on ED visits per year) as follows: Threshold Additional variables* If ED visits per year ≥18,811 A = – [(1.09 x 10-12) x (ED visits per year – 18,811)3] If ED visits per year ≥43,012 B = [(8.18 x 10-12) x (ED visits per year – 43,012)3] If ED visits per year ≥49,466 C = – [(8.18 x 10-12) x (ED visits per year – 49,466)3] If ED visits per year ≥67,273 D = [(1.08 x 10-12) x (ED visits per year – 67,273)3] *Include all variables in scoring where “ED visits per year” is greater than or equal to the threshold. If “ED visits per year” does not meet the threshold requirement, count variable as 0. For example, if ED visits per year is ≥43,012, final CEDOCS Score = CEDOCS Score + A + B. Note: Final CEDOCS Score is multiplied by the scaling factor specified. If no scaling factor or a scaling factor of 0 is specified, final CEDOCS Score is multplied by 2. Score interpretation: Level: Score: Interpretation: Level 1 1-20 Not busy Level 2 21-60 Busy Level 3 61-100 Extremely busy but not overcrowded Level 4 101-140 Overcrowded Level 5 141-180 Severely overcrowded Level 6 181-200 Dangerously overcrowded

1. Weiss SJ, Rogers DB, Maas F, Ernst AA, Nick TG. Evaluating community ED crowding: the Community ED Overcrowding Scale study. Am J Emerg Med. 2014 Nov;32(11):1357-63. doi: 10.1016/j.ajem.2014.08.035. Epub 2014 Aug 22.

EVALUATION.cedocs_score_emergency_department_overcrowding.v0