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. Author manuscript; available in PMC: 2013 Mar 20.
Published in final edited form as: Prehosp Emerg Care. 2011 Dec 22;16(2):293–298. doi: 10.3109/10903127.2011.640764

Table 2.

Data for All Attempts, Unsuccessful Attempts, and Successful Attempts at Intubation


All Attempts (n = 102)
Unsuccessful Attempts
(n = 26)
Successful Attempts
(n = 76)
Odds Ratio
p-Value
Time interval variables—mean (±SD)
Entry-to-cord time 12.4 ( ± 12.5) 18.7 ( ± 25.7) 11.4 ( ± 8.8) 0.103
Entry-to-POGO time 18.7 ( ± 16.4) 32.1 ( ± 29.4) 16.6 ( ± 12.4) 0.013*
Entry-to-tube time 18.6 ( ± 11) 27.4 ( ± 18.4) 17.6 ( ± 9.3) 0.04*
Attempt time 30.3 ( ± 23.9) 35.8 ( ± 31.7) 28.4 ( ± 20.5) 0.181
Intubation process variables
POGO score—mean (±SD) 66 ( ± 37) 39 ( ± 45) 76 ( ± 29) <0.001*
C-L view—median (IQR) 1 (1, 1) 3 (1, 4) 1 (1, 1) <0.001*
Number of forward attempts—mean (SD) 4.7 ( ± 6.5) 8.3 ( ± 6.8) 4.9 ( ± 6.6) 0.131
Esophageal intubation (95% CI) 17% (n = 17) (10–25) 43% (n = 11) (23–63) 8% (n = 6) (3–16) <0.001*
*

Statistically significant differences between successful and unsuccessful attempts.

CI = confidence interval; IQR = interquartile range; POGO = percentage of glottic opening; SD = standard deviation.