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Results of online quiz testing how accurately clinicians confirm ETT* placement when using grayscale vs color Doppler imaging techniques (CDI).
| ETT Location | Grayscale Questions Correct, Total (%) | CDI Questions Correct, Total (%) | Odds Ratio, (95% CI) | p-value |
|---|---|---|---|---|
| Trachea | 162 (85%) | 170 (89%) | 1.5 (0.8–2.7) | 0.21 |
| Esophagus | 155 (82%) | 163 (86%) | 1.4 (0.8–2.4) | 0.26 |
ETT, endotracheal tube; CI, confidence interval.
