Table 1 Characteristics of patients with prehospital arterial line insertion and invasive arterial blood pressure monitoring (2014–2023), n = 1083

Male, n (%)

767 (70.8%)

Female, n (%)

314 (29.0%)

Unknown/other

2

Age in years, median [IQR]

59.0 [46.0–70.0]

Patient aetiology

Medical cardiac arrest, n (%)

546 (50.4%)

Trauma, n (%)

322 (29.7%)

Other Medical, n (%)

215 (19.9%)

GCS score at primary survey

3/15, n (%)

592 (54.7%)

4–8/15, n (%)

285 (26.3%)

9–15/15, n (%)

171 (15.8%)

Not recorded, n (%)

35 (3.2%)

Anatomic site of arterial catheterisation

Radial artery, n (%)

869 (80.2%)

Femoral artery, n (%)

101 (9.3%)

Brachial artery, n (%)

67 (6.2%)

Other/undocumented, n (%)

46 (4.3%)

Associated interventions

ABG analysis, n (%)

591 (54.6%)

Intubation, n (%)

981 (90.6%)

Prehospital emergency anaesthesia, n (%)

789 (72.6%)

Vasoactive drugs, n (%)

609 (56.2%)

Fluid administration, n (%)

156 (14.4%)

Blood products (since March 2018*), n (%)

47 (5.6%*)