Table 2.
Association between the HEAVEN criteria with the number of intubation attempts
| HEAVEN criteria | No. of intubation attempts (n=174) |
OR (95% CI) | P-value | |
|---|---|---|---|---|
| 1 | >1 | |||
| Hypoxemia | 0.58 (0.19–1.72) | 0.34a) | ||
| Present | 17 (9.8) | 5 (2.9) | ||
| Absent | 130 (74.7) | 22 (12.6) | ||
| Extremes of size | 0.49 (0.21–1.18) | 0.11b) | ||
| Present | 33 (19.0) | 10 (5.7) | ||
| Absent | 114 (65.5) | 17 (9.8) | ||
| Anatomical challenge | 0.13 (0.05–0.29) | < 0.01a,c) | ||
| Present | 16 (9.2) | 13 (7.5) | ||
| Absent | 131 (75.3) | 14 (8.0) | ||
| Vomit/blood/fluid | 0.45 (0.19–1.05) | 0.06b) | ||
| Present | 39 (22.4) | 12 (6.9) | ||
| Absent | 108 (62.1) | 15 (8.6) | ||
| Exsanguination | 0.73 (0.25–2.15) | 0.58a) | ||
| Present | 21 (12.1) | 5 (2.9) | ||
| Absent | 126 (72.4) | 22 (12.6) | ||
| Neck mobility | 0.55 (0.20–1.53) | 0.27a) | ||
| Present | 20 (11.5) | 6 (3.4) | ||
| Absent | 127 (73.0) | 21 (12.1) | ||
| Any criteria | 0.098 (0.02–0.43) | < 0.01b,c) | ||
| Present | 81 (46.6) | 25 (14.4) | ||
| Absent | 66 (37.9) | 2 (1.1) | ||
Values are presented as number (%).
OR, odds ratio; CI, confidence interval.
a)
Fisher exact test.
b)
Chi-square test.
c)
P<0.01.