Journal of Patient-Reported Outcomes

Table 2 Principal component analysis. Items and factor loadings of all items explored for the Dutch BCTOS

From: Development and psychometric evaluation of a Dutch-translated shorter Breast Cancer Treatment Outcome Scale (Dutch BCTOS-13)

Item	Subscale
Item	Cosmesis	Function
1 Breast size^a	0.77	0.01
2 Breast texture (hardening)	0.67	0.37
3 Nipple appearance	0.63	0.17
4 Breast shape	0.69	0.19
5 Breast elevation/position^a	0.65	0.32
6 Scar tissue	0.63	0.04
7 Breast swelling	0.50	0.45
8 Fit of bra	0.80	0.20
9 Breast sensitivity	0.73	0.18
10 Fit of clothing^a	0.69	0.03
11 Overall breast appearance^a	0.85	0.10
12 Overall skin appearance^a	0.72	0.27
13 Breast tenderness	0.48	0.40
14 Arm heaviness	0.19	0.90
15 Shoulder discomfort	0.11	0.81
16 Arm discomfort	0.19	0.89
17 Arm swelling	0.06	0.85

Displayed are factor loadings after varimax rotation. Underlining of the factor loading indicates to which subscale it was assigned. ^aadditional items that were not included in the study by Hennigs [22]

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