A psychometric evaluation of the Functional assessment of cancer therapy-kidney symptom index (FKSI-19) among renal cell carcinoma patients suggesting an alternative two-factor structure.
Andreas Karlsson RosenbladPernilla SundqvistBodil WestmanBörje LjungbergPublished in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2021)
The present study is the first to use psychometric methods for examining the factor structure of the FKSI-19 instrument. The hypothesized four-factor structure of FKSI-19 provided a barely acceptable model fit. The two-factor FKSI-14 structure may be used as an alternative or complement to the four-factor structure when interpreting the FKSI-19 instrument.