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Table 4 Estimated model goodness of fit statistics

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

Model

Overall

MAE

MAPE (%)

R2

Adj. R2

Overall

Q1

Q2

Q3

Q4

Q5

Overall

Q1

Q2

Q3

Q4

Q5

SF-6D

 Linear

.885

.885

.094

.067

.076

.078

.123

.127

29.0

39.0

26.1

23.0

30.8

26.2

 Quadratic

.887

.886

.093

.065

.075

.069

.122

.126

28.1

33.4

27.2

23.6

31.3

25.2

 Cubic

.888

.887

.092

.065

.075

.069

.120

.125

27.9

33.6

26.0

23.3

31.4

25.2

EQ-5D-3 L

 Linear

.827

.826

.008

.065

.076

.073

.101

.124

38.4

62.3

37.0

28.7

32.6

32.0

Quadratic

.830

.829

.086

.065

.076

.069

.099

.121

36.8

52.2

40.0

29.0

32.8

30.2

Cubic

.831

.831

.086

.065

.076

.076

.098

.119

37.0

33.6

38.2

28.9

33.1

29.8

  1. MAE Mean Absolute Error, MAPE Mean absolute percentage Error, Q1-Q5 quintile groups