Table 1.
Differences in successful intubation on the first attempt by definition.
| N = 1,863 | 1 Laryngoscope+ 1 ETT Insertion | 1 Laryngoscope+Any ETT Insertion | % Diff | (95% CI) | ||
|---|---|---|---|---|---|---|
| n | (%; 95% CI) | n | (%; 95% CI) | |||
| All intubations | 1,512 | (81.2; 79.4–82.9) | 1,603 | (86.0; 84.4–87.5) | −4.9 | (−5.9 to −3.9) |
| Laryngoscope | ||||||
| Video (n=1,395) | 1,173 | (84.1; 82.1–86.2) | 1,250 | (89.6; 87.9–91.1) | −5.5 | (−6.7 to −4.4) |
| Direct (n=468) | 339 | (72.4; 68.5–76.4) | 353 | (75.5; 71.7–79.2) | −3.0 | (−4.7 to −1.7) |
| Location | ||||||
| ED (n=713) | 599 | (84.2; 81.3–86.6) | 638 | (89.6; 87.0–91.5) | −5.5 | (−7.2 to −3.8) |
| ICU (n=1,150) | 913 | (79.4; 77.0–81.7) | 965 | (83.9; 81.6–85.9) | −4.5 | (−5.8 to −3.3) |
| Prior intubations | ||||||
| <25 (n=320) | 238 | (74.4; 68.9–79.2) | 262 | (82.1; 77.3–86.3) | −7.5 | (−10.4 to −4.7) |
| 25–49 (n=367) | 291 | (79.3; 75.4–83.2) | 301 | (82.0; 78.4–85.7) | −2.6 | (−4.6 to −1.1) |
| 50–99 (n=708) | 591 | (83.6; 80.7–86.2) | 624 | (88.2; 85.8–90.5) | −4.7 | (−8.3 to −1.0) |
| ≥100 (n=461) | 388 | (84.1; 80.9–87.6) | 412 | (89.4; 86.5–92.2) | −5.2 | (−7.5 to −3.4) |
| Trial | ||||||
| BOUGIE (n=809) | 678 | (83.8; 81.3–86.3) | 724 | (89.6; 87.5–91.6) | −5.7 | (−7.3 to −4.2) |
| PREPARE II (n=760) | 603 | (79.3; 76.3–82.2) | 632 | (83.2; 80.3–85.9) | −3.9 | (−5.3 to −2.5) |
| Coenrolled (n=294) | 231 | (78.6; 74.0–83.3) | 247 | (84.3; 79.8–88.0) | −5.3 | (−8.0 to −3.0) |
BOUGIE, Bougie or Stylet in Patients Undergoing Intubation Emergently; CI, confidence interval; Diff, difference; ED, emergency department; ETT, endotracheal tube; PREPARE II, Preventing Cardiovascular Collapse with Administration of Fluid Resuscitation During Induction and Intubation.