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Table 3 Estimated model coefficients

From: Mapping of the Gastrointestinal Short Form Questionnaire (GSF-Q) into EQ-5D-3L and SF-6D in patients with gastroesophageal reflux disease

Model

Predictor

SF-6D disutility

EQ-5D-3 L disutility

B

SE

Beta

Sig

B

SE

Beta

Sig

Linear

GSF-Q severity

.481

.014

.592

<.001

.441

.011

.688

<.001

Age (decade)

.012

.002

.124

<.001

.010

.002

.132

<.001

Gender (Female)

.041

.005

.077

<.001

.027

.005

.064

<.001

BMI (Grouped)

.019

.006

.080

<.001

ns

Comorbidities (Treated)

.043

.003

.132

<.001

.034

.006

.082

<.001

Quadratic

GSF-Q severity

.241

.044

.297

<.001

.195

.042

.304

<.001

GSF-Q severity (square)

.291

.051

.214

<.001

.309

.049

.288

<.001

Age (decade)

.013

.002

.138

<.001

.013

.002

.171

<.001

Gender (Female)

.045

.005

.084

<.001

.032

.005

.076

<.001

BMI (Grouped)

.031

.004

.217

<.001

.009

.004

.078

.020

Comorbidities (Treated)

.040

.006

.075

<.001

.031

.006

.074

<.001

Cubic

GSF-Q severity

.610

.091

.751

<.001

.527

.170

.485

<.001

GSF-Q severity (square)

−.822

.245

−.605

.001

−.665

.207

−.620

.001

GSF-Q severity (cube)

.891

.192

.444

<.001

.768

.068

.823

<.001

Age (decade)

.012

.002

.128

<.001

.013

.002

.167

<.001

Gender (Female)

.043

.005

.080

<.001

.030

.005

.071

<.001

BMI (Grouped)

.041

.006

.078

<.001

ns

Comorbidities (Treated)

.023

.004

.163

<.001

.032

.006

.077

<.001

  1. ns not significant