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Table 5 Correlation between objective (pH) and patient reported subjective outcomes in study patients PPI group on PPIs (6 months following high-dose PPI therapy)

From: Efficacy of transoral fundoplication for treatment of chronic gastroesophageal reflux disease incompletely controlled with high-dose proton-pump inhibitors therapy: a randomized, multicenter, open label, crossover study

Parameters

Regurgitation

RSI

GERD-HRQL

DMS

% total time

RE

Regurgitation

1.00

     

RSI

0.70 (<0.001)

1.00

    

GERD-HRQL

0.59 (0.005)

0.71 (<0.001)

1.00

   

DMS

−0.20 (0.399)

0.05 (0.838)

0.38 (0.107)

1.00

  

% total time

−0.12 (0.619)

0.12 (0.598)

0.41 (0.063)

0.94 (<0.001)

1.00

 

RE

0.10 (0.667)

0.31 (0.167)

0.46 (0.035)

0.77 (<0.001)

0.84 (<0.001)

1.00

Crossover patients off PPIs (6 months following transoral fundoplication)

Parameters

Regurgitation

RSI

GERD-HRQL

DMS

% total time

RE

Regurgitation

1.00

     

RSI

0.71 (<0.001)

1.00

    

GERD-HRQL

0.81 (<0.001)

0.62 (0.003)

1.00

   

DMS

0.18 (0.428)

0.14 (0.556)

0.04 (0.866)

1.00

  

% total time

0.11 (0.637)

0.09 (0.705)

0.08 (0.746)

0.89 (<0.001)

1.00

 

RE

0.17 (0.461)

0.14 (0.546)

0.14 (0.543)

0.65 (0.001)

0.80 (<0.001)

1.00

TF group off PPIs (12 months following transoral fundoplication)

Parameters

Regurgitation

RSI

GERD-HRQL

DMS

% total time

RE

Regurgitation

1.00

     

RSI

0.66 (<0.001)

1.00

    

GERD-HRQL

0.42 (0.010)

0.73 (<0.001)

1.00

   

DMS

0.02 (0.885)

0.10 (0.550)

0.35 (0.036)

1.00

  

% total time

0.06 (0.724)

0.10 (0.552)

0.39 (0.018)

0.98 (<0.001)

1.00

 

RE

0.21 (0.216)

0.13 (0.424)

0.41 (0.013)

0.83 (<0.001)

0.84 (<0.001)

1.00

  1. Values are Spearman’s Rho (p values).
  2. DMS, DeMeester score; GERD-HRQL, gastroesophageal reflux disease health-related quality of life; PPI, proton pump inhibitor; RE, reflux episodes; RSI, Reflux Symptom Index.
  3. Regurgitation was assessed with Reflux Disease questionnaire. RSI was used to assess atypical symptoms. GERD-HRQL was used to assess typical symptoms.