Fig 1.
Groups and subgroups.
Fig 2.
Process of case screening.
Table 1.
The baseline and outcomes of the two groups.
Table 2.
Pooled models of multiple factors logistic regression about mortality.
Table 3.
Comparison of mortality factors between two groups.
Table 4.
Baseline characteristics of the two groups before and after matching.
Table 5.
Outcome indicators of the two groups after PSM.
Fig 3.
28-day Kaplan-Meier curve after PSM.