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Table 4 Regression coefficients for the recommended mapping algorithms

From: Mapping EORTC QLQ-C30 and FACT-G onto EQ-5D-5L index for patients with cancer

 

Two-part beta

Ordinal logistic

Logistic part

Beta part

Mobility

Self-care

Usual activities

Pain/discomfort

Anxiety/depression

EORTC QLQ-C30

 Intercept 1

 − 11.64060

 − 1.66963

 − 5.91277

 − 4.24535

 − 9.28712

 − 0.82400

 − 6.65962

 Intercept 2

–

–

 − 3.79148

 − 2.56552

 − 6.21474

2.75434

 − 4.31221

 Intercept 3

–

–

 − 1.85222

 − 1.23110

 − 4.16801

5.35925

 − 2.81811

 Intercept 4

–

–

0.92106

0.17985

 − 1.46187

7.64850

 − 0.86976

 Age

–

–

 − 0.02469a

–

–

–

0.02119a

 Female

–

0.15271

–

0.60145a

0.33291

–

–

 Physical functioning

0.03395a

0.02475a

0.06934a

0.06035a

0.04812a

–

–

 Role functioning

0.03742a

0.00656a

0.01498a

0.01912a

0.03914a

–

–

 Emotional functioning

0.02694a

0.00540a

–

–

–

–

0.06947a

 Cognitive functioning

–

–

–

–

–

–

–

 Social functioning

–

–

–

–

0.00770

–

–

 Global health status

0.03182a

0.01167a

0.01767a

–

0.02419a

0.02343a

–

 Fatigue

–

–

–

–

–

–

–

 Pain

 − 0.06337a

–

–

–

–

 − 0.07683a

–

 Scale parameter

–

8.09789

–

–

–

–

–

FACT-G

       

 Intercept 1

 − 11.54143

 − 0.65502

 − 1.86481

 − 0.47810

 − 5.51844

 − 5.90937

 − 6.77040

 Intercept 2

–

–

 − 0.17843

0.85700

 − 3.04179

 − 3.06146

 − 4.14108

 Intercept 3

–

–

1.19513

1.83808

 − 1.60687

 − 1.28905

 − 2.67943

 Intercept 4

–

–

3.02125

2.87152

0.22225

0.45253

 − 0.88517

 Age

–

 − 0.01111a

 − 0.04819a

 − 0.04255a

 − 0.02439

–

0.01664

 Female

–

–

–

–

–

–

–

 Physical well-being

0.34876a

0.09845a

0.21038a

0.19205a

0.26197a

0.24215a

0.04892a

 Social well-being

–

–

–

–

–

–

–

 Emotional well-being

0.06963

0.03355a

–

–

–

–

0.26968a

 Functional well-being

0.04585a

0.03922a

0.05296a

0.07714a

0.08561a

0.01740

0.04819a

 Scale parameter

–

6.05147

–

–

–

–

–

  1. EORTC QLQ-C30, European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30; FACT-G, Functional Assessment of Cancer Therapy General
  2. aP < 0.01 (not applicable to intercepts and scale parameter)