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Table 2 Patients demographics and clinical characteristics

From: A pre-hospital risk score predicts critical illness in non-trauma patients transported by ambulance to a Dutch tertiary referral hospital

 

Critical Illness

Non-Critical Illness

P Value

Number of patients (%)

356 (12.1)

2579 (87.9)

 

Number of patients with imputed data (%)

52 (14.6)

414 (16.1)

 

Age, years, median (IQR)

67 (56–77)

61 (47–74)

< 0.01

Male sex, n (%)

200 (56)

1349 (52)

0.08

Initial pre-hospital vital signs, median (IQR)

 Oxygen Saturation, %

95 (88–98)

97 (95–98)

< 0.01

 Respiratory rate breaths/minute

20 (14–27)

16 (14–20)

< 0.01

 Systolic blood pressure, mmHg

140 (113–168)

140 (121–160)

0.29

 Heart rate, beats/minute

93 (74–111)

86 (73–102)

< 0.01

 Glasgow Coma Scale score

15 (10–15)

15 (15–15)

< 0.01

Diagnostic category by ambulance personnel, n (%)

 Neurological

128 (36)

740 (29)

 

 Internal

111 (31)

881 (34)

 

 Pulmonology

55 (15)

267 (10)

 

 Cardiovascular

25 (7)

345 (13)

 

 Surgical

11 (3)

96 (4)

 

 Urological

6 (2)

50 (2)

 

 Psychiatric/toxicologic

3 (< 1)

73 (3)

 

 Medical (NOS)

17 (5)

127 (5)

 

Pre-hospital interventions, n (%)

 Airway - noninvasive

157 (44)

446 (17)

< 0.01

 Airway - endotracheal intubation

5 (1)

0 (0)

< 0.01

 Physician staffed team

22 (6)

0 (0)

< 0.01

General practitioner at scene, n (%)

61 (18)

404 (16)

0.26

Nursing Home before encounter, n (%)

51 (15)

264 (10)

0.01

  1. Abbreviations: IQR Interquartile Range, NOS not otherwise specified