Table 1

Predictor and trauma outcome variables

Variable	n=300 847 children		n=1 706 638 adults		% missing
Demographics
Age (year), mean (SD)	10.42	5.91	51.67	20.93
Female sex	99 523	33.92	632 346	37.95
White	196 736	67.06	1 258 913	75.54
Black or African American	51 994	17.72	229 302	13.76
Other race	34 196	11.66	123 493	7.41
Asian	5 079	1.73	27 888	1.67
American Indian	3 348	1.14	14 902	0.89
Race N/A	1 170	0.4	8 551	0.51
Native Hawaiian or Other Pacific Islander	853	0.29	3 411	0.2
ED vitals
Oxygen saturation, mean (SD)	98.26	6.93	96.85	7.44	25.85
Systolic blood pressure, mean (SD)	122.48	19.53	139.89	26.35	3.26
Pulse, mean (SD)	102.42	26.18	87.49	19.13	2.26
Respiratory rate, mean (SD)	21.32	6.82	18.40	4.63	3.24
Temperature, mean (SD)	36.67	1.26	36.52	1.45	11.55
GCS eye, mean (SD)	3.85	0.62	3.84	0.64	6.49
GCS verbal, mean (SD)	4.75	0.87	4.69	0.91	6.54
GCS motor, mean (SD)	5.79	0.91	5.77	0.96	6.54
Injury Severity Score, mean (SD)	7.36	7.21	9.08	7.82	3.37
Comorbidities
Alcoholism	2 420	0.82	152 602	9.16
Angina	8	0	3 873	0.23
Ascites within 30 days	55	0.02	1 265	0.08
Bleeding disorder	668	0.23	96 168	5.77
Chemotherapy	58	0.02	4 358	0.26
Congenital anomalies	2 248	0.77	4 598	0.28
Congestive heart failure	92	0.03	57 005	3.42
Current smoker	10 098	3.44	315 492	18.93
CVA/residual neurological deficit	233	0.08	38 609	2.32
Diabetes mellitus	1 074	0.37	209 902	12.6
Disseminated cancer	34	0.01	11 608	0.7
Oesophageal varices	48	0.02	3 924	0.24
Functionally dependent health status	651	0.22	32 606	1.96
Hypertension requiring medication	1 054	0.36	527 251	31.64
Myocardial infarction	19	0.01	23 487	1.41
No comorbidities	199 555	68.02	442 939	26.58
Obesity	3 684	1.26	110 593	6.64
Prematurity	1 666	0.57	412	0.02
PVD	14	0	7 831	0.47
Respiratory disease	16 312	5.56	137 284	8.24
Steroid use	109	0.04	8 746	0.52
Injury intent
Assault	21 319	7.27	177 543	10.65
Other	228	0.08	3 098	0.19
Self-inflicted	2 449	0.83	25 798	1.55
Undetermined	1 820	0.62	6 135	0.37
Unintentional	265 434	90.48	1 447 143	86.84
Injury type
Blunt	241 153	82.2	1 427 232	85.64
Burn	9 740	3.32	25 843	1.55
Other/unspecified	21 498	7.33	65 390	3.92
Penetrating	18 859	6.43	141 252	8.48
Injury mechanism
Adverse effects, drugs	34	0.01	307	0.02
Adverse effects, medical care	22	0.01	406	0.02
Cut/pierce	8 855	3.02	77 958	4.68
Drowning/submersion	269	0.09	650	0.04
Fall	95 199	32.45	690 746	41.45
Fire/flame	2 874	0.98	15 864	0.95
Firearm	9 982	3.4	63 173	3.79
Hot object/substance	6 866	2.34	9 979	0.6
MVT motorcyclist	3 968	1.35	91 688	5.5
MVT occupant	51 335	17.5	334 239	20.06
MVT other	932	0.32	3 423	0.21
MVT pedal cyclist	4 436	1.51	13 306	0.8
MVT pedestrian	12 745	4.34	47 643	2.86
MVT unspecified	457	0.16	4 193	0.25
Machinery	1 101	0.38	20 115	1.21
Natural/environmental, bites/stings	4 949	1.69	7 497	0.45
Natural/environmental, other	1 543	0.53	5 371	0.32
Other specified and classifiable	8 773	2.99	21 390	1.28
Other specified, not classifiable	1 379	0.47	7 560	0.45
Overexertion	1 490	0.51	4 715	0.28
Pedal cyclist, other	11 880	4.05	25 423	1.53
Pedestrian, other	1 568	0.53	4 819	0.29
Poisoning	330	0.11	647	0.04
Struck by, against	32 068	10.93	111 135	6.67
Suffocation	281	0.1	1 396	0.08
Transport, other	25 462	8.68	80 501	4.83
Unspecified	2 452	0.84	15 573	0.93
Arrived by ambulance	223 432	76.16	1 409 459	84.58
Transferred from other hospital	108 720	37.06	387 609	23.26	0.1
Mortality	1 053	0.36	7 145	0.43

Unless otherwise noted, data are presented as count (percentage) of positive cases.
CVA, cerebrovascular accident; ED, emergency department; GCS, Glasgow Coma Score; MVT, motor vehicle traffic accident; N/A, not available; PVD, Peripheral Vascular Disease.