Table 3 Correlation coefficients (Pearson) between GSRS, QOLRAD and SF-36 domains, HAD and physician-assessed frequency and severity of symptoms.
Instruments | GSRS Reflux | GSRS Abdominal Pain | GSRS Indigestion | GSRS Diarrhoea | GSRS Constipation | QOLRAD Emotional Distress | QOLRAD Sleep Disturbance | QOLRAD Food/drink problems | QOLRAD Physical/ Social Functioning | QOLRAD Vitality |
|---|---|---|---|---|---|---|---|---|---|---|
SF-36 Bodily pain | -0.36 | -0.51 | -0.37 | -0.19 | -0.22 | 0.48 | 0.49 | 0.50 | 0.49 | 0.49 |
SF-36 General Health | -0.09 | -0.34 | -0.20 | -0.24 | -0.26 | 0.39 | 0.45 | 0.37 | 0.47 | 0.44 |
SF-36 Mental Heath | -0.17 | -0.36 | -0.35 | -0.25 | -0.36 | 0.63 | 0.48 | 0.51 | 0.61 | 0.60 |
SF-36 Physical functioning | -0.29 | -0.34 | -0.33 | -0.19 | -0.38 | 0.51 | 0.52 | 0.40 | 0.59 | 0.48 |
SF-36 Role – Emotional | -0.21 | -0.34 | -0.33 | -0.24 | -0.40 | 0.52 | 0.36 | 0.39 | 0.47 | 0.52 |
SF-36 Role – Physical | -0.24 | -0.44 | -0.36 | -0.25 | -0.44 | 0.50 | 0.43 | 0.48 | 0.58 | 0.54 |
SF-36 Social Functioning | -0.30 | -0.41 | -0.29 | -0.20 | -0.38 | 0.70 | 0.55 | 0.54 | 0.71 | 0.64 |
SF-36 Vitality | -0.38 | -0.44 | -0.30 | -0.28 | -0.37 | 0.60 | 0.53 | 0.59 | 0.65 | 0.69 |
SF-36 PCS* | -0.30 | -0.44 | -0.32 | -0.20 | -0.33 | 0.43 | 0.52 | 0.44 | 0.56 | 0.46 |
SF-36 MCS** | -0.22 | -0.35 | -0.31 | -0.25 | -0.37 | 0.63 | 0.44 | 0.49 | 0.58 | 0.61 |
QOLRAD Emotional Distress | -0.43 | -0.45 | -0.39 | -0.19 | -0.28 | |||||
QOLRAD Food/drink problems | -0.53 | -0.54 | -0.44 | -0.25 | -0.34 | |||||
QOLRAD Physical/social functioning | -0.43 | -0.44 | -0.40 | -0.23 | -0.36 | |||||
QOLRAD Sleep disturbance | -0.51 | -0.48 | -0.41 | -0.34 | -0.30 | |||||
QOLRAD Vitality | -0.54 | -0.53 | -0.46 | -0.35 | -0.31 | |||||
HAD Anxiety score | 0.13 | 0.36 | 0.36 | 0.32 | 0.34 | -0.51 | -0.37 | -0.44 | -0.48 | -0.49 |
HAD Depression score | 0.09 | 0.26 | 0.27 | 0.32 | 0.30 | -0.48 | -0.39 | -0.38 | -0.53 | -0.48 |
Physician-assessed symptoms | ||||||||||
Frequency of heart burn symptoms | 0.36 | 0.28 | 0.13 | -0.07 | 0.05 | -0.44 | -0.32 | -0.40 | -0.36 | -0.37 |
Severity of heart burn symptoms | 0.23 | 0.13 | 0.08 | -0.15 | 0.29 | -0.28 | -0.20 | -0.24 | -0.30 | -0.28 |