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Published online 2014 Jan 21. doi: 10.1186/1756-0500-7-53
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Table 4

Multitrait scaling analyse of the EORTC QLQ-BR23

ScalesConvergence (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 symptoms0,57-0,84, 1000.02-0.52, 100

*Number of item-scale correlations greater than 0.40 /total number of item-scale correlations.

**Number of correlations of items with own scales significantly higher than correlations with other scale/total number of correlations.