Table 4

Correlations between RDQ scale scores and clinical severity assessments at baseline and visit 2

RDQ Scale
Clinical Severity Assessment



Regurgitation
Heartburn
Dyspepsia
GERD

Baseline
Regurgitation
0.54
0.14
0.09
0.51
Heartburn
0.21
0.33
0.20
0.29
Dyspepsia
0.26
0.17
0.47
0.18
GERDa
0.51
0.29
0.18
-
Visit 2
Regurgitation
0.63
0.56
0.40
0.62
Heartburn
0.49
0.74
0.42
0.73
Dyspepsia
0.53
0.67
0.58
0.46
GERDa
0.62
0.73
0.46
-

aHeartburn and regurgitation subscales combined.

Values are Pearson's correlation coefficients. Results in bold denote those within similar domains.

Shaw et al. Health and Quality of Life Outcomes 2008 6:31   doi:10.1186/1477-7525-6-31