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Table 1 Baseline characteristics according to allocated group

From: Early adjunctive methylene blue in patients with septic shock: a randomized controlled trial

Characteristics

MB (n = 45)

Control (n = 46)

Age—years, median (IQR)

46 (38–54)

47 (31–60)

Female sex—no. (%)

18 (40)

18 (40)

Hypertension—no. (%)

17 (38)

18 (39)

Diabetes—no. (%)

19 (42)

17 (37)

Acute kidney injury—no. (%)

22 (49)

20 (44)

Infection source—no. (%)

 Pneumonia—no. (%)

22 (49)

23 (50)

 Intra-abdominal—no. (%)

17 (38)

18 (39)

 Urinary tract—no. (%)

4 (9)

4 (9)

 Other—no. (%)

2 (4)

1 (2)

Shock diagnosis to intervention—hours, mean (SD)

8.3 ± 1.7

7.6 ± 2.3

Positive fluid response at enrollment— no. (%)

22 (49)

20 (44)

Fluid load from shock diagnosis to intervention—ml/kg, mean (SD)

24 ± 8.4

22 ± 9.6

Heart rate, mean (SD)

114 ± 9.9

115 ± 10.5

Mean arterial pressure—mmHg, mean (SD)

68 ± 4.5

67 ± 4.3

Norepinephrine dose—mcg/kg/min), median (IQR)

0.45 (0.27–0.68)

0.37 (0.20–0.58)

Vasopressin use—no. (%)

36 (80)

34 (74)

Serum lactate—mmol/L, median (IQR)

6.3 (4.8–7.4)

5.0 (2.9–7.5)

Mechanical ventilation—no. (%)

42 (93)

38 (82)

ARDS—no. (%)

36 (80)

32 (70)

PaO2/FIO2 ratio (SD)

190 ± 73

219 ± 79

PEEP—cmH2O, IQR

8 (6–8.5)

7 (6–9)

Serum creatinine—mg/dL, median (IQR)

1.5 (0.7–2.5)

1.5 (0.8–2.1)

Serum bilirubin—mg/dL, median (IQR)

1.4 (1.1–1.7)

1.3 (0.8–1.6)

AST—mg/dL, median (IQR)

113 (99–142)

107 (75–163)

ALT—mg/dL, median (IQR)

48 (41–78)

39 (30–79)

Ejection fraction—%, median (IQR)

61 (55–70)

58 (54–66)

SOFA, median (IQR)

10 (8–12)

10 (8–12)

APACHE II, mean (SD)

22.9 ± 4.4

22.4 ± 4.4

  1. Plus–minus values are means ± standard deviation (SD); median with interquartile ranges (IQR) are in parentheses
  2. MB methylene blue, ARDS acute respiratory distress syndrome, PEEP positive end-expiratory pressure, AST aspartate aminotransferase, ALT alanine aminotransferase, APACHE Acute Physiology and Chronic Health Evaluation