Negative central venous to arterial lactate gradient in patients receiving vasopressors is associated with higher ICU 30-day mortality: a retrospective cohort study

Table 2 Results from Cox proportional models

Analysis^a	Hazard ratio	95% CI	P value
Unadjusted analysis	5.29	3.03, 9.24	< 0.001
Primary analysis	2.31	1.07, 4.99	0.032
PS-weighting analysis	2.57	1.17, 5.64	0.010
Use all VALac within the first 24 h were negative as exposure	2.86	1.25, 6.54	0.013

^a: For PS-weighting analysis, N = 252. For other analysis, N = 1582
Abbreviation: CI Confidence interval, VALac Central venous to arterial lactate level difference, PS Propensity score

ISSN: 1471-2253