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Table 1 Baseline characteristics at first visit at the emergency department. Patients are grouped according to their age; 40–69 years (middle-aged) and 70+ years (older)

From: Risk assessment models for potential use in the emergency department have lower predictive ability in older patients compared to the middle-aged for short-term mortality – a retrospective cohort study

 

Middle-aged

N = 22,653

Older

N = 19,889

P

Female sex, n (%)

10,687 (47.2)

11,193 (56.3)

< 0.001

Age (years), mean (SD)

55.5 (8.6)

80.7 (7.4)

 

Triage: ADAPT

11,389 (50.3)

9746 (49.0)

 

 Triage category: Red, n (%)

418 (3.1)

482 (4.9)

< 0.001

 Triage category: Orange, n (%)

3376 (24.0)

3038 (31.2)

0.02

 Triage category: Yellow, n (%)

3953 (36.3)

3428 (35.1)

0.49

 Triage category: Green, n (%)

3642 (36.5)

2798 (28.7)

< 0.001

Triage: CTA

7983 (35.2)

6655 (33.5)

 

 Triage category: Red, n (%)

189 (2.4)

225 (3.4)

< 0.001

 Triage category: Orange, n (%)

1276 (16.0)

1143 (17.2)

0.05

 Triage category: Yellow, n (%)

3092 (38.7)

2409 (36.2)

0.01

 Triage category: Green, n (%)

3426 (42.9)

2878 (43.2)

0.70

Vital signs

13,200 (58.3)

10,992 (55.3)

 

 Heart rate (beats/min), mean (SD),

86 (20)

85 (20)

< 0.001

 Arterial oxygen saturation (%), median (IQR)

97 (96–99)

96 (95–98)

< 0.001

 Respiratory rate (breaths/min), mean (SD)

17 (3)

18 (4)

< 0.001

 Systolic blood pressure (mmHg), mean (SD)

140 (25)

146 (29)

< 0.001

 Temperature (°C), mean (SD)

36.8 (0.8)

36.8 (0.8)

0.07

Biomarkers levels, n (%)

13,032 (57.5)

13,039 (65.6)

 

 Albumin (g/L), median (IQR)

41 (37–47)

38 (34–41)

< 0.001

 Creatinine (μmol/L), median (IQR)

72 (60–87)

83 (66–111)

< 0.001

 CRP (mg/L), median (IQR)

4 (3–33)

11 (3–61)

< 0.001

 Haemoglobin (mmol/L), median (IQR)

8.6 (7.8–9.2)

7.9 (7.0–8.6)

< 0.001

 Leucocytes (×  109/L), median (IQR)

8.6 (6.6–11.3)

8.9 (6.8–11.8)

< 0.001

 Potassium (mmol/L), median (IQR),

3.9 (3.7–4.2)

4.0 (3.7–4.3)

< 0.001

 Sodium (mmol/L), median (IQR)

139 (136–141)

138 (135–141)

< 0.001

 Platelets (× 109/L), median (IQR)

245 (200–300)

242 (195–309)

< 0.001

 suPAR (ng/mL), median (IQR)

3.7 (2.8–5.2)

5.4 (4.0–7.5)

< 0.001

Mortality

 Mortality within 2-days, n (%)

73 (0.3)

263 (1.3)

< 0.001

 Mortality within 7-days, n (%)

139 (0.6)

596 (3.0)

< 0.001

  1. CRP C-reactive protein, IQR Interquartile range, SD Standard deviation, suPAR Soluble urokinase plasminogen activator receptor
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BMC Geriatrics

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