a positive trendp < 0.01
In further analysis, a positive trend of the TtAa in the 30-day mortality rate among the case ( γ = 0.986, p < 0.01), critically ill control ( γ = 1.000, p < 0.01), and less critically ill control patients ( γ = 1.000, p = 0.01) was evident in Figure 3 . 4.