Table 2.
Correlation between age-based ETT (formula 1, 2) OD and US-measured subglottic diameter with final ETT OD
Parameter | R2 | P |
---|---|---|
Formula-1-based OD | 0.6 | <0.001 |
Formula-2-based OD | 0.7 | <0.001 |
US-measured-subglottic diameter-based OD | 0.7 | <0.001 |
Age | 0.7 | <0.001 |
Height | 0.3 | <0.001 |
Weight | 0.4 | <0.001 |
ETT – Endotracheal tube; OD – Outer diameter; US – Ultrasound