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Table 1 Characteristics of patients at baseline (n = 125)

From: Peripheral venous lactate levels substitute arterial lactate levels in the emergency department

Characteristic

Frequency (%)* or median (IQR)

Sex, no.(%)

 Men*

81

(64.8)

Age (years)

81

(72–86)

Systolic blood pressure (mmHg)

134

(116–149)

Heart rate (beats/min)

102

(88–117)

Respiratory rate (breaths/min)

24

(20–29)

Body temperature (°C)

38.5

(37.5–39.2)

SpO2 (%)

96

(94–98)

Peripheral venous lactate (mmol/L)

2.08

(1.57–3.28)

Arterial lactate (mmol/L)

1.82

(1.25–2.46)

Arterial-venous puncture time difference (min)

9

(5–17)

Time from arrival ED to blood gas collection (min)

10

(8–13)

Emergency department boarding time (min)

138

(111–181)

Sepsis-3, no.(%)

82

(65.6)

Septic shock, no. (%)

8

(6.40)

SOFA score

2

(1–4)

Death within 28 days, no. (%)

15

(12.0)

Admission, no. (%)

117

(93.4)

Disease type based on ICD-10*, no. (%)

 Certain infectious and parasitic diseases

5

(4.0)

 Diseases of the nervous system

1

(0.8)

 Diseases of the respiratory system

73

(58.4)

 Diseases of the digestive system

20

(16.0)

 Diseases of the skin and subcutaneous tissue

6

(4.8)

 Diseases of the genitourinary system

18

(14.4)

 Injury, poisoning, and certain other consequences of external causes

2

(1.6)

  1. IQR interquartile range, ED emergency department, SpO2 peripheral oxygen saturation, ICD International Classification of Diseases