Table 3 Risk factors and aggravating conditions and ETI success
|  | FPS n = 697 (%) | Overall success n = 886 (%) | TOTAL n = 926 (%) |
|---|---|---|---|
Patient risk factors for difficult intubationa | |||
 Reduced neck mobility (incl. MILNS) | 266 (38.2) | 355 (40.17) | 363 (39.2) |
 Risk factors not assessed | 269 (38.6) | 324 (36.6) | 342 (36.9) |
 Fluid in airways | 145 (20.8) | 200 (22.6) | 205 (22.1) |
 Significant facial or airway trauma | 56 (8.0) | 70 (7.9) | 72 (7.8) |
 No risk factors for difficult intubation | 55 (7.9) | 63 (7.1) | 68 (7.3) |
 Severe obesity or thick/short neck | 11 (1.6) | 18 (2.0) | 20 (2.2) |
 Other | 11 (1.6) | 15 (1.7) | 16 (1.7) |
 Limited mouth opening | 5 (0.7) | 11 (1.2) | 12 (1.3) |
 Pre-existing airway device ineffective | 6 (0.9) | 7 (0.8) | 9 (1.0) |
 Prior difficult intubation | 5 (0.7) | 7 (0.8) | 8 (0.9) |
 Short TMD | 2 (0.3) | 3 (0.3) | 3 (0.3) |
Aggravating conditions for airway managementb | |||
 Not assessed | 144 (20.7) | 174 (19.6) | 194 (21.0) |
 Darkness | 68 (9.8) | 95 (10.7) | 96 (10.4) |
 In stationary ambulance | 42 (6.0) | 50 (5.6) | 57 (6.2) |
 Patient entrapped | 35 (5.0) | 43 (4.9) | 45 (4.9) |
 Hostile environment | 35 (5.0) | 40 (4.5) | 42 (4.5) |
 In moving ambulance | 23 (3.3) | 28 (3.2) | 29 (3.1) |
 Not 360-degree access | 12 (1.7) | 13 (1.5) | 15 (1.6) |
 Bright light/sunlight | 9 (1.3) | 12 (1.4) | 12 (1.3) |
 Suboptimal provider positioning | 4 (0.6) | 5 (0.6) | 6 (0.7) |