Table 2.

Mean and standard errors of waiting time for obtaining services before and after protocol implementation

Variable	Before protocol implementation	After protocol implementation	P
The average time of the first visit of emergency medicine physician (min)	25/0 ± 19/6	14/6 ± 12/0	<0.001
The average time of the first visit of surgeon (min)	29/6 ± 3/5	28/7 ± 4/0	0/87
The average time of the first visit of other services (min)	58/8 ± 5/6	41/1 ± 5/1	0/02
Computed tomography scan time (min)	57/7 ± 4/9	52/0 ± 5/4	0/45
Chest X-ray time (min)	49/5 ± 3/8	41/6 ± 3/7	0/14
Hospitalization duration in emergency medicine department (hours)	7/8 ± 1/6	4/2 ± 0/6	0/046
Hospitalization duration in other services (hours)	11/3 ± 0/9	9/7 ± 1/1	0/26
Duration of hospital stay (days)	5/0 ± 1/0	4/3 ± 0/5	0/48
Hospital costs (million rials)	3/9 ± 3/5	3/3 ± 3/2	0/18