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Table 4 Univariate and multivariate logistic regression and Cox proportional hazard regression analyses of the treatments and the REDS score of patients who had a blood pressure measured after a minimum 2000 ml of intravenous fluids

From: Treatment variables associated with outcome in emergency department patients with suspected sepsis

Treatment variable

All N = 503 median (IQR)

Survivors N = 419 median (IQR)

Non-survivors N = 84 median (IQR)

Univariate analysis

OR (95% CI) on MVLR

Significance of OR on MVLR

Cox proportional hazard ratio (95% CI)

Significance of Cox proportional hazard ratio

Time to antibiotics (mins)

39 (24–62)

39 (24–62)

38.5 (22–67.5)

p = 0.71

1.00 (0.99–1.01)

p = 0.25

1.00 (0.99–1.01)

p = 0.28

Volume of IVF (ml)

2000 (2000–3000)

2000 (2000–3000)

2625 (2000–3000)

p = 0.0003a

1.00 (0.99–1.00)

p = 0.77

1.00 (0.99–1.00)

p = 0.64

MAP mmHg post 2 l fluid bolus

77 (66–90)

78 (68–90)

69 (60–88)

p = 0.0008a

1.03 (1.00–1.05)

p = 0.02a

1.03 (1.00–1.05)

p = 0.02a

Final MAP (mmHg)

79 (69–89)

80 (71–89)

70.5 (60–82.5)

p < 0.0001a

0.99 (0.96–1.02)

p = 0.5

0.99 (0.97–1.02)

p = 0.5

Urea (mmol/l)

7.7(4.8–13.8)

7(4.5–11.7)

15.5(9–26)

p < 0.0001a

1.05 (1.03–1.08)

p < 0.0001a

1.03 (1.01–1.04)

p = 0.003a

REDS score

4 (2–6)

3 (2–5)

6 (5–8)

p < 0.0001a

1.63 (1.42–1.87)

p < 0.0001a

1.43 (1.29–1.58)

p < 0.0001a

  1. Hosmer–Lemeshow test for multivariate logistic regression; p = 0.84
  2. CI confidence interval, MAP mean arterial pressure, REDS score Risk-stratification of Emergency Department suspected Sepsis score IQR interquartile range, OR odds ratio, MVLR multivariate logistic regression
  3. aStatistical significance reached