Table 2

- Multinomial logistic regression analysis of factors for type of presentation among 582 patients who had substance use.

Type of presentation	Unadjusted				Adjusted
Type of presentation	Variable	P-value	OR	95% CI	P-value	OR	95% CI
Medical	Gender
	Male	<0.001	5.5*	2.8 - 10.6	0.001	5.852*	2.95 - 11.58
	Female	-	-	-	-	-	-
Trauma	Gender
	Male	<0.001	10.8*	2.5 - 46.1	0.001	11.488*	2.61 - 50.4
	Female	-	-	-	-	-	-
Medical	Age
	<20	0.553	1.36	0.49 - 3.75	0.559	1.37	0.47 - 3.94
	21-30	0.77	0.886	0.39 - 1.98	0.881	1.067	0.45 - 2.49
	31-40	0.815	1.108	0.47 - 2.61	0.884	1.069	0.43 - 2.62
	41-50	0.769	1.158	0.43 - 3.08	0.745	1.186	0.42 - 3.32
	>50	-	-	-	-	-	-
Trauma	Age
	<20	0.152	3.056	0.66 - 14.07	0.144	3.206	0.67 - 15.32
	21-30	0.347	1.895	0.50 -7.18	0.249	2.23	0.57 - 8.71
	31-40	0.391	1.842	0.45 - 7.44	0.399	1.846	0.44 - 7.67
	41-50	-	-	-	-	-	-
	>50	-	-	-	-	-	-
Medical	Presentation time
	7:00 - 15:00	0.651	0.896	0.55 - 1.43	0.796	0.936	0.56 -1.54
	15:00 - 23:00	0.162	0.734	0.47 - 1.13	0.425	0.829	0.52 - 1.31
	23:00 - 7:00	-	-	-	-	-	-
Trauma	Presentation time
	7:00 - 15:00	0.771	0.914	0.49 - 1.67	0.703	1.133	0.59 - 2.15
	15:00 - 23:00	0.002	2.93*	1.52 - 5.89	0.011	2.44*	1.22 – 5.0
	23:00 - 7:00	-	-	-	-	-	-
Medical	Day of presentation
	Weekdays	0.734	0.931	0.61 - 1.41	0.848	0.958	0.61 - 1.48
	Weekends	-	-	-	-	-	-
Trauma	Day of presentation
	Weekdays	0.12	0.648	0.37 - 1.12	0.151	0.656	0.37 - 1.16
	Weekends	-	-	-	-	-	-
Medical	GCS
	<8	0.151	1.956	0.78 - 4.89	0.126	2.139	0.81 - 5.66
	8-15	0.001	2.105*	1.39 - 3.22	<0.001	2.24*	1.43 - 3.49
	>15	-	-	-	-	-	-
Trauma	GCS
	<8	0.519	0.585	0.11 - 2.98	0.478	0.545	0.10 - 2.92
	8-15	0.435	0.8	0.45 - 1.40	0.263	0.714	0.39 - 1.29
	>15	-	-	-	-	-	-