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Table 2 Final patient variables

From: Standardised data reporting from pre-hospital advanced airway management – a nominal group technique update of the Utstein-style airway template

FINAL PATIENT VARIABLES (data provided by provider performing the intervention)
Number Data variable name Type of data Data variable categories or values
Choose only one option unless otherwise stated.
Definition of data variable
4 Age Continuous YY Years rounded down. Ages under 1 year are reported in decimals (e.g. 6 months = 0.5 year)
5 Gender Nominal 1 = Female
2 = Male
3 = Other / Unknown
Patient gender
6 Patient category Nominal 1 = Trauma - Blunt
2 = Trauma – Penetrating
3 = Trauma - Head injury (including TBI)
4 = Trauma - Other (including burns, strangulation, drowning, or asphyxiation)
5 = Medical - Cardiac arrest
6 = Medical - Respiratory distress or breathing difficulties
7 = Medical – Intoxication
8 = Medical - Infection (including sepsis)
9 = Medical - Other (e.g. endocrinology or other medical emergencies)
10 = Neurology - Stroke (including cerebral haemorrhage or infarction)
11 = Neurology - Other (excluding stroke)
12 = Psychiatry (e.g. agitation/psychosis)
13 = Obstetrics
14 = Other emergencies, describe: ______
15 = Unknown
Dominating reason for emergency treatment
TBI = Traumatic Brain Injury
7 Indication for airway intervention Nominal 1 = Decreased level of consciousness
2 = Hypoxemia
3 = Ineffective ventilation
4 = Existing airway obstruction
5 = Impending airway obstruction
6 = Combative or uncooperative
7 = Humanitarian (e.g. relief of pain or distress)
8 = Cardiac arrest
9 = Pre-existing airway device (e.g. SAD) not working adequately
10 = Other, describe: ____________
Indications for airway intervention.
Select all that apply.
8 Patient risk factors for difficult intubation Nominal 1 = No risk factors for difficult intubation
2 = Prior difficult intubation
3 = Reduced neck mobility, neck-immobilization device or manual in-line stabilisation (MILS)
4 = Severe obesity or thick/short neck
5 = Limited mouth opening or inter incisor distance < 4 cm
6 = Short Thyroid-Mental-Distance (< 6.5 cm)
7 = Significant maxillofacial or upper airway trauma
8 = Blood, vomit, mucus or hypersalivation in airways
9 = Pre-existing airway device (e.g. SAD) not working adequately
10 = Other, describe: ______
11 = Risk factors not assessed.
Airway assessment before or during intervention showing patient risk factors for difficult intubation, e.g. poor visualisation, foreign body, blood or saliva.
SAD = Supraglottic airway device
Select all that apply.
9 Aggravating conditions for airway management Nominal 1 = Patient entrapped during airway management
2 = Not 360-degree access to patient during airway management
3 = Suboptimal provider positioning
4 = Bright light/sunlight
5 = Darkness
6 = Hostile environment
7 = In moving helicopter/ambulance
8 = In stationary helicopter/ambulance
9 = Other, describe: ____
Patient entrapped means physically restrained in wreckage, etc.
Not 360-degree access means restricted access for providers to all parts of patient, e.g. cannot move freely around patient or patient cannot be positioned on half-high stretcher for intubation.
Suboptimal provider positioning means suboptimal intubating positioning, e.g. patient flat on ground during CPR with provider kneeling low or lying.
Hostile environment means environment containing physical, chemical, biological, radioactive or other threats to provider safety (e.g. “active shooter” scenario).
Select all that apply.
10 Respiratory rate, initial Continuous and Nominal 1 = Number, describe
2 = NA: Did not measure
3 = NA: Could not measure
Initial value (Baseline) recorded on scene.
NA = Not available
11 Blood pressure, initial Continuous and Nominal 1 = Number, describe (Syst-BP/Dias-BP (MAP))
2 = NA: Did not measure
3 = NA: Could not measure
Initial value (Baseline) recorded on scene.
NA = Not available
12 SpO2, initial Continuous and Nominal 1 = Number, describe
2 = NA: Did not measure
3 = NA: Could not measure
Initial value (Baseline) recorded on scene.
NA = Not available
13 Blood pressure, lowest prior to airway management Continuous and Nominal 1 = Number, describe (Syst-BP/Dias-BP (MAP))
2 = NA: Did not measure
3 = NA: Could not measure
Lowest value prior to airway management recorded on scene.
NA = Not available
14 SpO2, lowest prior to airway management Continuous and Nominal 1 = Number, describe
2 = NA: Did not measure
3 = NA: Could not measure
Lowest value prior to airway management recorded on scene.
NA = Not available
15 Blood pressure, lowest during airway management Continuous and Nominal 1 = Number, describe (Syst-BP/Dias-BP (MAP))
2 = NA: Did not measure
3 = NA: Could not measure
Lowest value during airway management recorded on scene.
NA = Not available
16 SpO2, lowest during airway management Continuous and Nominal 1 = Number, describe
2 = NA: Did not measure
3 = NA: Could not measure
Lowest value during airway management recorded on scene.
NA = Not available
17 Glasgow Coma Score (GCS), initial Continuous and Nominal 1 = Sum GCS (Motor + Verbal + Eyes)
2 = NA
Initial value (Baseline) recorded on scene.
NA = Not available
18 Glasgow Coma Score (GCS), lowest prior to airway management Continuous and Nominal 1 = Sum GCS (Motor + Verbal + Eyes)
2 = NA
Lowest value prior to airway management recorded on scene.
NA = Not available