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Table 4 Multitrait scaling analyse of the EORTC QLQ-BR23

From: The european organization for research and treatment of cancer quality of life questionnaire-BR 23 breast cancer-specific quality of life questionnaire: psychometric properties in a Moroccan sample of breast cancer patients

Scales

Convergence (r, % success)*

Discriminance (r, % success)**

Body image

0,77-0,83, 100

0.06-0.53, 100

Sexual functioning

0,89-0,91, 100

0.09-0.35, 100

Systemic therapy side effects

0,48-0,66, 100

0.01-0.37, 96.42

Breast symptoms

0,04-0.8, 50

0.00-0.89, 0.75

Arm symptoms

0,57-0,84, 100

0.02-0.52, 100

  1. *Number of item-scale correlations greater than 0.40 /total number of item-scale correlations.
  2. **Number of correlations of items with own scales significantly higher than correlations with other scale/total number of correlations.