Table 3

Unadjusted and adjusted odds of Calling 911 during overdoses where naloxone is administered

Overdose characteristics	Unadjusted OR	95%	p Value	Adjusted OR*	95% CI	p Value
Age
20–30	Ref
31–40	0.64	(0.18 to 2.31)	0.50
41–46	1.48	(0.45 to 5.06)	0.52
47–80	1.21	(0.38 to 4.01)	0.75
Sex
Male	Ref			Ref
Female	2.16	(1.06 to 4.49)	0.04	2.42	(0.88 to 7.05)	0.10
Health authority
Vancouver coastal health	Ref			Ref
Interior health	0.15	(0.06 to 0.36)	<0.001	0.30	(0.06 to 1.20)	0.10
Other†	1.05	(0.48 to 2.29)	0.91	0.86	(0.28 to 2.57)	0.8
Overdose setting
Private residence‡	Ref			Ref
On the street	7.26	(3.01 to 19.74)	<0.0001	10.68	(2.83 to 51.87)	<0.01
Other§	5.93	(2.28 to 17.61)	<0.001	3.89	(1.03 to 16.47)	0.05
Person who overdosed used more than one drug
No	Ref
Yes	0.75	(0.39 to 1.40)	0.37
Person who overdosed used more than one opioid
No	Ref
Yes	0.75	(0.36 to 1.54)	0.43
Person who overdosed used a stimulant¶
No	Ref			Ref
Yes	0.46	(0.20 to 1.02)	0.06	0.32	(0.09 to 0.98)	0.05
Person who overdosed used a depressant (other than an opioid)**
No	Ref
Yes	1.25	(0.50 3.24)	0.63
Naloxone programme period (weeks)
<69.4	Ref			Ref
≥69.4	1.90	(0.91 to 4.01)	0.09	1.56	(0.41 to 6.00)	0.51
No. of ampoules administered
<2	Ref
≥2	1.28	(0.67 to 2.47)	0.46
Aggression
No	Ref
Yes	0.53	(0.22 to 1.26)	0.15
Withdrawal symptoms
None	Ref			Ref
Mild	0.37	(0.17 to 0.79)	0.01	0.98	(0.31 to 3.12)	0.97
Severe	0.60	(0.22 to 1.66)	0.32	0.81	(0.21 to 3.07)	0.75
Role
Responded	Ref			Ref
Not indicated	0.69	(0.35 to 1.35)	0.28	1.81	(0.58 to 5.86)	0.31