Table 1 Patient Characteristics
Patient characteristic | With apneic oxygenation n = 3318 | Without apneic oxygenation n = 3231 | p value |
|---|---|---|---|
Age category |  |  |  < 0.001 |
 Infant (< 12 month) | 1,174 (35.4%) | 1,349 (41.8%) |  |
 Young child (1–7 year) | 1,109 (30.5%) | 985 (30.5%) |  |
 Older child (8–17 year) | 863 (26.0%) | 761 (23.6%) |  |
 Adult (18 year or older) | 172 (5.2%) | 136 (4.2%) |  |
 Weight (kg, median, IQR) | 13 (6.5–33) | 10.9 (5.4–28) |  |
Diagnosis |  |  |  < 0.001 |
 Respiratory | 1529 (46.1%) | 1624 (50.3%) |  |
 Cardiac | 108 (3.3%) | 318 (9.8%) |  |
 Neurological | 971 (29.3%) | 656 (20.3%) |  |
 Shock | 380 (11.5%) | 299 (9.3%) |  |
 Trauma/Traumatic brain injury | 90 (2.7%) | 95 (2.9%) |  |
 Other | 240 (7.2%) | 239 (7.4%) |  |
Indication for intubation | Â | Â | Â |
 Respiratory failure | 2002 (60.3%) | 2162 (66.9%) |  < 0.001 |
 Shock | 339 (10.2%) | 421 (13.0%) |  < 0.001 |
 Neurological | 224 (6.8%) | 360 (11.1%) |  < 0.001 |
 Procedural | 819 (24.7%) | 429 (13.3%) |  < 0.001 |
Difficult airway | Â | Â | Â |
 History of difficult airway | 457 (13.8%) | 501 (15.5%) |  |
 Difficult airway feature | 796 (24.0%) | 924 (28.6%) |  |
Airway clinician |  |  |  < 0.001 |
 Attending | 402 (12.2%) | 465 (14.4%) |  |
 Fellow | 1818 (54.9%) | 1722 (53.3%) |  |
 Resident | 377 (11.4%) | 334 (10.3%) |  |
 Nurse Practitioner | 383 (11.6%) | 283 (8.8%) |  |
Hospitalist | 64 (1.9%) | 27 (0.8%) | Â |
 Respiratory Therapist | 65 (2.0%) | 30 (0.9%) |  |
 Subspecialist/Physician assistant/Other | 200 (6.0%) | 369 (11.4%) |  |
Vagolytic | 1247 (37.6%) | 751 (23.2%) |  < 0.001 |
Ketamine | 1647 (49.6%) | 1240 (38.4%) |  < 0.001 |
Propofol | 632 (19.1%) | 378 (11.7%) |  < 0.001 |
Neuromuscular blockade | 3,177 (95.8%) | 2961 (91.6%) |  < 0.001 |
Device | Â | Â | Â |
 Direct laryngoscope | 1185 (35.7%) | 2062 (63.9%) |  < 0.001 |
 Video laryngoscope | 2109 (63.6%) | 1127 (34.9%) |  |
 Other device | 24 (0.7%) | 42 (1.2%) |  |