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Table 3 Multiple regression analyses mapping EORTC QLQ-C30 and EORTC QLQ-MY20 data to EQ-5D

From: Mapping EORTC QLQ-C30 and QLQ-MY20 to EQ-5D in patients with multiple myeloma

Predictors Full model Trimmed model
  Estimate p-value Estimate p-value
QLQ-C30     
Intercept 0.11979 0.3757 0.25763 0.0002
Global health status/QoL* 0.00161 0.0568 0.00165 0.0301
Physical functioning* 0.00471 < 0.0001 0.00467 < 0.0001
Role functioning 0.00073194 0.3455 NS NS
Emotional functioning 0.00104 0.2522 NS NS
Cognitive functioning −0.00037864 0.6203 NS NS
Social functioning 0.00044712 0.4983 NS NS
Fatigue −0.00005750 0.9521 NS NS
Nausea/Vomiting 0.00053330 0.7166 NS NS
Pain* −0.00229 0.0039 −0.00293 < 0.0001
Dyspnoea 0.00037610 0.5099 NS NS
Insomnia* 0.00096618 0.0570 0.00089197 0.0616
Appetite loss −0.00047987 0.4899 NS NS
Constipation −0.00055193 0.3057 NS NS
Financial difficulties 0.00096199 0.0613 NS NS
QLQ-MY20     
Disease symptoms −0.00094431 0.3983 NS NS
Side effects 0.00207 0.1445 NS NS
Future perspective* 0.00149 0.0366 0.00157 0.0061
Body image −0.00040870 0.4607 NS NS
Adjusted R-squared values 0.7015 0.7028
RMSE indices 0.164 0.163
  1. *Significant predictors in the full model.
  2. NS not significant.