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Table 1 Spearman’s rank correlation coefficients

From: Refining scores based on patient reported outcomes – statistical and medical perspectives

EORTC scale

Aesthetic Scale

Functional Scale

Physical functioning

−0.48

− 0.55

Role functioning

−0.54

− 0.47

Emotional functioning

−0.46

− 0.33

Cognitive functioning

−0.31

− 0.36

Social functioning

−0.47

− 0.45

Fatigue

0.05

−0.01

Nausea and vomiting

0.2

0.2

Pain

0.53

0.55

Dyspnoea

0.19

0.31

Insomnia

0.42

0.2

Appetite loss

0.35

0.32

Constipation

0.23

0.19

Diarrhoea

0.06

0.03

Financial difficulties

0.25

0.31

Global health status

−0.56

−0.48

Systematic therapy side effects

0.38

0.41

Upset by hair loss

0.1

0.11

Breast symptoms

0.71

0.48

Arm symptoms

0.41

0.77

Body Image

−0.45

−0.31

Sexual functioning

−0.11

− 0.15

Sexual enjoyment

−0.12

− 0.22

Future perspective

−0.29

− 0.27

  1. Legend: Spearman’s rank correlation coefficients between the new scores of the BCTOS-12 (columns) and the scores of the QLQ C30 BR23