From: Accuracy evaluation of mainstream and sidestream end-tidal carbon dioxide monitoring during noninvasive ventilation: a randomized crossover trial (MASCAT-NIV trial)
Mean bias (95% CI)
95% Limits of agreement
During SBT, mmHg
2.51 (2.00–3.02)
− 1.45 to 6.47
Previous method, mmHg
6.22 (5.22–7.23)
− 1.54 to 13.99
Novel method, mmHg
2.70 (2.15–3.26)
− 1.61 to 7.02