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Table 1 variables and cut-off points

From: A retrospective comparison between non-conveyed and conveyed patients in ambulance care

Variable Cut-off point Codes
Demographics
 Age N/A Years
 Gender   1. Male
2. Female
 Geographical location N/A 1. Highly urban (≥2.500 home address per km2)
2. Urban (1.500–2.500 home address per km2)
3. Average urban (1.000–1.500 home address per km2)
4. Rural (500–1.000 home address per km2)
5. Highly rural (≤500 home address per km2)
Initial diagnosis
 ICD-10   1. Certain infectious and parasitic diseases
2. Neoplasms
3. Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
4. Endocrine, nutritional and metabolic diseases
5. Mental, Behavioral and Neurodevelopmental disorders
6. Diseases of the nervous system
7. Diseases of the eye and adnexa
8. Diseases of the ear and mastoid process
9. Diseases of the circulatory system
10. Diseases of the respiratory system
11. Diseases of the digestive system
12. Diseases of the skin and subcutaneous tissue
13. Diseases of the musculoskeletal system and connective tissue
14. Diseases of the genitourinary system
15. Pregnancy, childbirth and the puerperium
16. Certain conditions originating in the perinatal period
17. Congenital malformations, deformations and chromosomal abnormalities
18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
19. Injury, poisoning and certain other consequences of external causes
20. External causes of morbidity
21. Factors influencing health status and contact with health services
22. Codes for special purposes
23. Other/non classifiable
Vital functions & observation scales
 Airway 1. Airway obstructed
2. Airway free
1. Abnormal
2. Normal
 Breathing 1. Insufficient breathing
2. Sufficient breathing
1. Abnormal
2. Normal
 Respiratory rate (/min.) Adults (> 12 years)
1. < 12/min.
2. 12–20/min.
3. > 20/min.
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children < 1 year
1. < 30 min.
2. 30–40/min.
3. > 40/min.
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children 1–2 years
1. < 25 min.
2. 25–30/min.
3. > 30/min.
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children 3–5 years
1. < 25 min.
2. 25–30/min.
3. > 30/min.
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children 6–12 years
1. < 20 min.
2. 20–25/min.
3. > 25/min.
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children < 1 year
1. < 30 min.
2. 30–40/min.
3. > 40/min.
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
 Oxygen saturation (%) 1. < 96%
2. 96–100%
1. Abnormal (too low)
2. Normal
 Carbon dioxide level (kPa) 1. < 4,5 kPa
2. 4,5 kPa – 6,0 kPa
3. > 6,0 kPa
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
 Circulation 1. Insufficient
2. Sufficient
1. Abnormal
2. Normal
 Heart rate (/min.) Adults (> 12 years)
1. < 60/min.
2. 60–100/min.
3. > 100/min.
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children < 1 year
1. < 110/min.
2. 110–160/min.
3. > 160/min.
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children 1–2 years
1. < 100/min
2. 100–150/min.
3. > 150/min.
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children 3–5 years
1. < 95/min.
2. 95–140/min.
3. > 140/min.
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children 6–12 years
1. < 80/min.
2. 80–120/min.
3. > 120/min.
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
 Systolic blood pressure (mmHg) Adults (> 12 years)
1. < 90 mmHg
2. 90–160 mmHg
3. > 160 mmHg
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children < 1 year
1. < 70 mmHg
2. 70–90 mmHg
3. > 90 mmHg
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children 1–2 years
1. < 80 mmHg
2. 80–95 mmHg
3. > 95 mmHg
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children 3–5 years
1. < 80 mmHg
2. 80–100 mmHg
3. > 100 mmHg
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
  Children 6–12 years
1. < 90 mmHg
2. 90–110 mmHg
3. > 110 mmHg
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
 Temperature (°C) 1. < 36,1 °C
2. 36,1–38,0 °C
3. > 38,0 °C
1. Abnormal (to low)
2. Normal
3. Abnormal (too high)
 Glasgow Coma Scale (EMV) 1. EMV < 15
2. EMV 15
1. Abnormal
2. Normal
AVPU Scale 1. One of the following: Verbal, Unresponsive, Pain
2. Alert
1. Abnormal
2. Normal
Pupillary response 1. Unequal and non-reactive to light
2. Equal And Reactive to Light
1. Abnormal
2. Normal
Blood glucose level 1. < 3,5 mmol/L.
2. 3,5–14,0 mmol/L.
3. >  14,0 mmol/L.
1. Abnormal (too low)
2. Normal
3. Abnormal (too high)
Disability 1. Episode of unconsciousness
2. Conscious
1. Abnormal
2. Normal
Revised Trauma Score (RTS) Adults (> 12 years)
1. < 12
2. 12
1. Abnormal (too low)
2. Normal
Pediatric Trauma Score (PTS) Children (< 12 years)
1. < 12
2. 12
1. Abnormal (too low)
2. Normal
Pain (NRS) 1. NRS 4–10
2. NRS 0–3
1. Abnormal
2. Normal
Sinus rhythm 1. Not present
2. Present
1. Abnormal
2. Normal