TABLE 1.

Percentage Distribution of Successful Intubations and Clinical Factors, by Resident Training Level*

First Year (n = 192)Second Year (n = 126)Third Year (n = 130)
Successful intubation (dichotomous)49.7 (42.6–56.8)54.8 (46.1–63.5)62.3 (53.9–70.7)
Intubation success at
 First attempt35.1 (28.2–41.9)33.4 (25.1–41.6)45.4 (36.8–53.9)
 Second attempt14.7 (9.6–19.7)21.4 (14.2–28.6)16.9 (10.4–23.4)
 Third attempt6.8 (3.2–10.4)11.1 (5.6–16.6)6.9 (2.5–11.3)
 Fourth attempt1.0 (0.0–2.5)1.6 (0.0–3.8)3.1 (0.0–6.1)
 No successful intubations42.4 (35.3–49.4)32.5 (24.3–40.7)27.7 (20.0–35.5)
Indication for intubation
 Respiratory failure61.5 (54.5–68.4)42.9 (34.2–51.5)58.5 (49.9–66.9)
 Delivery room resuscitation20.8 (15.1–26.6)31.8 (23.6–39.9)29.2 (21.3–37.1)
 Meconium-stained amniotic fluid14.1 (9.1–18.9)23.8 (16.3–31.3)10.8 (5.4–16.3)
Previous attempts by another clinician5.7 (10.0–13.2)21.4 (15.0–29.4)25.4 (18.7–33.5)
Time period of intubation
 January–June35.9 (29.4–49.9)38.9 (30.7–47.6)30.0 (22.7–38.3)
 July–December64.1 (57.0–70.5)61.1 (52.3–69.2)70.0 (61.6–77.2)
  • * 95% CIs are given in parentheses.