Figure legends
Figure 1. Flowchart of this study
LPR, laryngopharyngeal reflux; MII, multichannel intraluminal impedance;
PPI, proton pump inhibitor; RSI, reflux symptom index
Figure 2. Box plot showing differences in several proximal
parameters of the 24-h multichannel intraluminal impedance (MII)-pH
monitoring between non-responders and responders with laryngopharyngeal
reflux (LPR). Responders showed a significantly higher proximal all
reflux time and proximal longest reflux time compared to non-responders
(p = 0.0040 and 0.0216, respectively; A, B). However, there were
no significant differences in the proximal all reflux episodes between
the two groups (p = 0.4781; C).
Figure 3. Receiver operating characteristic (ROC) curve
analysis for determining the appropriate cut-off value of proximal all
reflux time and proximal longest reflux time for predicting responders
with laryngopharyngeal reflux (LPR). For proximal all reflux time,
>0.000517% was the best cut-off value to predict
responders with LPR (A). For proximal longest reflux time,
>0.61 min was the best cut-off value to predict responders
with LPR (B).
AUC, area under the ROC curve; CI, confidence interval; Sens.,
sensitivity; Spec., specificity