Table 2.

Emergency department visits characteristics for presenting complaint at triage registration

Visits characteristics	NON-DA	DA	p-value†
Chest pain, n	530	668
LOS (min), mean (SD)	345 [157]	327 [123]	0.024
Age (years), mean (SD)	60.0 [18.2]	57.5 [19.6]	0.024
Sex (male), %	51.1	48.1	0.29
NEDOCS (score), mean (SD)	127 [59]	157 [67]	< 0.001
Number of imaging tests, mean (SD)	1.9 [0.9]	1.9 [1.0]	0.60
Blood tests (at least 1), %	97.4	100.0	< 0.001
Number of specialist consultations, mean (SD)	0.15 [0.02]	0.14 [0.01]	0.56
Priority color code (yellow), %	84.2	82.8	0.53
Physicians decision (hospitalization), %	18.3	14.1	0.047
Abdominal Pain, n	846	700
LOS (min), mean (SD)	341 [167]	356 [149]	0.053
Age (years), mean (SD)	57.0 [22.3]	56.8 [22.2]	0.88
Sex (male), %	42.3	40.4	0.47
NEDOCS (score), mean (SD)	127 [58]	145 [61]	< 0.001
Number of imaging tests, mean (SD)	1.8 [1.0]	1.9 [0.9]	0.46
Blood tests (at least 1), %	92.6	100.0	< 0.001
Number of specialist consultations, mean (SD)	0.29 [0.02]	0.29 [0.02]	0.75
Priority color code (yellow), %	51.5	56.3	0.06
Physicians decision (hospitalization), %	28.6	27.3	0.57
Non-traumatic bleeding, n	301	179
LOS (min), mean (SD)	304 [147]	337 [166]	0.023
Age (years), mean (SD)	67.9 [20.2]	73.4 [16.5]	0.002
Sex (male), %	61.8	53.6	0.08
NEDOCS (score), mean (SD)	129 [58]	143 [68]	0.016
Number of imaging tests, mean (SD)	1.3 [0.6]	1.4 [0.7]	0.77
Blood tests (at least 1), %	86.4	100.0	< 0.001
Number of specialist consultations, mean (SD)	0.49 [0.03]	0.40 [0.04]	0.09
Priority color code (yellow), %	50.4	62.6	0.004
Physicians decision (hospitalization), %	26.6	35.8	0.034

Abbreviations: DA = Diagnostic Anticipation; LOS = Length of Stay; SD = Standard Deviation; NEDOCS=National ED Overcrowding Study Score [15] at triage registration; min = minutes

†calculated through Pearson’s χ2 test for categorical variables and T-Student test for continuous variables