Table 3.

Results of regression analysis

	One-month survival OR (95%)	Neurologically favorable one-month survival OR (95%)
Survey year
2005 to 2006	Reference	Reference
2007 to 2008	1.16 (1.11 to 1.22)	1.41 (1.31 to 1.51)
Sex
Male	Reference	Reference
Female	0.91 (0.87 to 0.96)	0.83 (0.77 to 0.90)
Age (year)
<40	Reference	Reference
40 to 49	0.89 (0.79 to 1.01)	0.91 (0.78 to 1.07)
50 to 59	0.95 (0.86 to 1.05)	0.82 (0.72 to 0.94)
60 to 69	0.83 (0.75 to 0.92)	0.63 (0.56 to 0.72)
70 to 79	0.56 (0.52 to 0.62)	0.34 (0.30 to 0.39)
80 to 89	0.41 (0.37 to 0.45)	0.18 (0.15 to 0.20)
≥90	0.24 (0.21 to 0.27)	0.09 (0.07 to 0.11)
Etiology
Non-cardiac origin	Reference	Reference
Cardiac origin	1.29 (1.23 to 1.35)	2.61 (2.41 to 2.84)
Bystander CPR
No bystander CPR	Reference	Reference
Bystander CPR	1.49 (1.40 to 1.54)	1.95 (1.81 to 2.09)
Public defibrillation
No public AED	Reference	Reference
Public AED	2.91 (2.44 to 3.47)	3.52 (2.88 to 4.31)
Collapse-EMS CPR interval (minutes)	0.93 (0.93 to 0.93)	0.89 (0.89 to 0.90)

CI, confidence interval; OR, odds ratio.