Table 4 Number of times (%) each Utstein variable was collected and documented among the 73 studies included
Core variables | Number (%) |
|---|---|
Core system variables | Â |
Main type of transportation | 55 (75%) |
Highest level of EMS provider on scene | 34 (47%) |
Airway device available on scene | 26 (36%) |
Drugs for airway management available on scene | 27 (37%) |
Response time | 10 (14%) |
Core patient variables | Â |
Patient category | 63 (86%) |
Age | 59 (81%) |
Gender | 53 (73%) |
GCS initial (m/v/e) | 40 (55%) |
Systolic blood pressure, initial | 35 (48%) |
Indication for airway intervention | 26 (36%) |
Heart rate, initial | 13 (18%) |
Respiratory rate, initial | 12 (16%) |
SpO2 initial, state: with or without supplemental O2 | 11 (15%) |
Co-morbidity | 2 (3%) |
Post intervention variables | Â |
Intubation success | 44 (60%) |
Device used in successful airway management | 41 (56%) |
Survival status | 40 (55%) |
Complications | 30 (41%) |
Drugs used to facilitate airway procedure | 28 (38%) |
Attempts at airway intervention | 25 (34%) |
Post-intervention SBP on arrival | 11 (15%) |
Post-intervention SpO2 on arrival | 10 (14%) |
Post-intervention EtCO2 on arrival | 8 (11%) |
Post-intervention SBP | 8 (11%) |
Post-intervention SpO2 | 8 (11%) |
Post-intervention ventilation | 3 (4%) |
Post-intervention EtCO2 | 3 (4%) |
Fixed system variables | Â |
Service mission types | 52 (71%) |
Established airway management protocols | 48 (66%) |
Area | 40 (55%) |
Usual tiered response | 33 (45%) |
Type of tracheal tube confirmation technique | 31 (42%) |
Rural, urban, split | 31 (42%) |
Airway management techniques available | 30 (41%) |
Population | 24 (33%) |
Describe type of training in airway management | 23 (32%) |
Time intervals collected | 15 (21%) |
Times available | 13 (18%) |
Type of available ventilator | 1 (1%) |