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. 2015 Sep 23;9(9):e0004113. doi: 10.1371/journal.pntd.0004113

Table 2. Survival analysis using Cox proportional hazards model.

Variables β SE Wald df Sig. Exp (β)
Age 0.030 0.013 5.701 1 0.017 1.031
Confusion 0.594 0.189 9.886 1 0.002 1.812
Log10 (Viral load) 1.086 0.491 4.899 1 0.027 2.964

β, beta coefficient; SE, standard error; Wald, Wald statistic; df, degree of freedom; Sig., P value.