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. 2025 Jul 9;17(7):e87594. doi: 10.7759/cureus.87594

Table 7. Diagnostic performance of suprasternal and subxiphoid ultrasonography for endotracheal tube confirmation compared to continuous capnography.

CI: confidence interval

Parameter Estimate Lower-upper 95% Cis
Sensitivity 100% 92.86-100
Positive predictive value 100% 92.86-100
Diagnostic accuracy 100% 92.86-100