Table 2

Hazard ratios and 95% CIs for rates of transmissions by city

Covariate	Mexico		São Paulo
Transition	HR (95% CI)	p Value	HR (95% CI)	p Value
Age (10 years)
Susceptible→CLABSI	0.87 (0.81 to 0.95)	0.001	1.03 (0.91 to 1.16)	0.67
Susceptible→Discharged	0.98 (0.95 to 1.01)	0.13	0.99 (0.95 to 1.03)	0.62
Susceptible→Dead	1.01 (0.94 to 1.07)	0.86	0.99 (0.92 to 1.06)	0.74
CLABSI→Discharged	1.03 (0.92 to 1.15)	0.64	0.96 (0.84 to 1.09)	0.55
CLABSI→Dead	1.01 (0.89 to 1.14)	0.90	1.12 (0.87 to 1.44)	0.39
ASIS score
Susceptible→CLABSI	1.07 (0.89 to 1.28)	0.47	0.86 (0.60 to 1.23)	0.40
Susceptible→Discharged	0.48 (0.45 to 0.51)	<0.001	0.64 (0.58 to 0.71)	<0.001
Susceptible→Dead	2.01 (1.70 to 2.38)	<0.001	0.98 (0.79 to 1.20)	0.81
CLABSI→Discharged	0.54 (0.41 to 0.70)	<0.001	0.76 (0.47 to 1.23)	0.27
CLABSI→Dead	0.94 (0.70 to 1.26)	0.66	1.33 (0.62 to 2.87)	0.47
Closed versus open system
Susceptible→CLABSI	0.15 (0.08 to 0.26)	<0.001	0.31 (0.16 to 0.60)	<0.001
Susceptible→Discharged	1.24 (1.10 to 1.40)	<0.001	1.53 (1.31 to 1.78)	<0.001
Susceptible→Dead	0.65 (0.50 to 0.84)	<0.001	0.83 (0.61 to 1.11)	0.20
CLABSI→Discharged	2.56 (1.28 to 5.12)	0.008	1.70 (0.74 to 3.91)	0.21
CLABSI→Dead	0.77 (0.24 to 2.51)	0.67	1.88 (0.46 to 7.67)	0.38

ASIS, acute severity of illness score; CLABSI, central line associated blood stream infection.