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Table 5 Correlation of the FT, SG and HUI 3 with the validation instruments (P-values)

From: The impact of illness in patients with moderate to severe gastro-esophageal reflux disease

Instrument

FT

SG

HUI 3

SF-36 PCS (N = 212)

0.40 (<0.001)

0.31 (<0.001)

0.46 (<0.001)

SF-36 MCS (N = 212)

0.34 (<0.001)

0.22 (<0.001)

0.54 (<0.001)

QOLRAD emotional Distress

0.48 (<0.001)

0.27 (<0.001)

0.38 (<0.001)

QOLRAD sleep disturbance

0.39 (<0.001)

0.25 (<0.001)

0.23 (<0.001)

QOLRAD food/drink problem

0.37 (<0.001)

0.28 (<0.001)

0.25 (<0.001)

QOLRAD physical/social

0.38 (<0.001)

0.26 (<0.001)

0.41 (<0.001)

QOLRAD vitality

0.48 (<0.001)

0.30 (<0.001)

0.44 (<0.001)

Stomach pain

0.32 (<0.001)

0.15 (0.032)

0.26 (<0.001)

Heartburn

0.32 (<0.001)

0.13 (0.059)

0.09 (0.174)

Belching (N = 216)

0.20 (0.003)

-0.09 (0.193)

0.09 (0.189)

Acid reflux (N = 215)

0.34 (<0.001)

0.15 (0.015)

0.14 (0.046)

  1. FT: Feeling thermometer; SG: Standard gamble; HUI 3: Health utility index 3; SF-36: Short form 36; PCS: Physical component summary; MCS: Mental component summary; QOLRAD: Quality of life in reflux and dyspepsia. N = 217 unless indicated otherwise.