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Table 2 Description of the EORTC QLQ-C30 and BR23 questionnaires received at each measurement time

From: Item response theory and factor analysis as a mean to characterize occurrence of response shift in a longitudinal quality of life study in breast cancer patients

 

QLQ-C30

QLQ-BR23

Then-test

Post-test

Then-test

Post-test

Baseline

 

359 (94.2%)

 

357 (93.7%)

After surgery

347 (91.1%)

347 (91.1%)

347 (91.1%)

346 (90.8%)

3 months

339 (90.0%)

342 (89.8%)

355 (87.9%)

340 (89.2%)

6 months

314 (82.4%)

322 (84.5%)

313 (82.1%)

322 (84.5%)

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Health and Quality of Life Outcomes

ISSN: 1477-7525

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