Table 4 Results of univariable and multivariable logistic regression analyses for factors associated with 90-day mortality in patients with septic shock

Age

Not included

  45–54 years¹

1.54 (0.7–3.37)

0.28

1.76 (0.73–4.28)

0.21

  55–64 years¹

1.9 (0.94–3.82)

0.08

2.09 (0.95–4.6)

0.07

  65–74 years¹

4.06 (2.06–8.02)

<0.001

5.52 (2.57–11.89)

<0.001

  ≥75 years¹

5.62 (2.86–11.04)

<0.001

8.26 (3.83–17.81)

<0.001

Operative admission

0.57 (0.4–0.81)

0.002

0.63 (0.42–0.96)

0.03

0.6 (0.4–0.89)

0.01

SAPS II without age and renal points

1.05 (1.04–1.07)

<0.001

1.05 (1.03–1.07)

<0.001

Not included

Renal failure within the first day on the ICUs

3.17 (2.16–4.66)

<0.001

1.91 (1.1–3.31)

0.02

Not included

Mechanical ventilation

1.91 (1.27–2.87)

0.002

1.26 (0.76–2.09)

0.38

1.77 (1.12–2.77)

0.01

Highest norepinephrine dose (μg/kg/min)²

2.74 (1.92–3.91)

<0.001

1.02 (1.01–1.03)

<0.001

1.02 (1.01–1.02)

<0.001

Lowest BE value³

0.94 (0.92–0.96)

<0.001

0.98 (0.95–1.01)

0.11

0.97 (0.94–1.0)

0.05

High RRT ICU group

1.11 (0.82–1.5)

0.52

0.89 (0.59–1.34)

0.57

0.88 (0.6–1.29)

0.50

RRT*RRT group (interaction term)

1.97 (1.28–3.02)

0.02

0.67 (0.24–1.85)

0.43

0.7 (0.27–1.79)

0.45