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01.06.2009 | Original Article

The palliative performance scale: examining its inter-rater reliability in an outpatient palliative radiation oncology clinic

verfasst von: Sarah Campos, Liying Zhang, Emily Sinclair, May Tsao, Elizabeth A. Barnes, Cyril Danjoux, Arjun Sahgal, Philiz Goh, Shaelyn Culleton, Gunita Mitera, Edward Chow

Erschienen in: Supportive Care in Cancer | Ausgabe 6/2009

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Abstract

Introduction

The Palliative Performance Scale (PPS) was developed by the Victoria Hospice Society in 1996 to modernize the Karnofsky Performance Scale. Currently, it is being used to measure palliative patient performance status in a variety of settings. Despite its widespread use, only one study has examined the inter-rater reliability of the PPS.

Purpose

To examine the inter-rater reliability of the PPS in measuring performance status in patients seen in an outpatient palliative radiation oncology clinic

Methods

Performance status for 102 consecutive patients was assessed by an oncologist (MD), a radiation therapist (RT), and a research assistant (RA) in the Rapid Response Radiotherapy Program at the Odette Cancer Centre in Toronto, Ontario, Canada. Raters’ scores were analyzed for correlation and compared to evaluate the inter-rater reliability of the PPS tool.

Results

Excellent correlation was found between the scores rated by the MD and RA (r = 0.86); good correlation was observed between scores rated by the MD and RT (r = 0.69) and the RT and RA (r = 0.77). Scores between all three raters, as well as between rater pairs, were also found to have good reliability as measured by the Chronbach’s alpha coefficient. Significant results were obtained for the range of PPS scores in which the majority of our patients fell: 40–80%.

Conclusion

PPS was shown to have good overall inter-rater reliability in an outpatient palliative setting, but more research is needed to establish the validity and reliability of the tool in a variety of different palliative settings.

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Titel: The palliative performance scale: examining its inter-rater reliability in an outpatient palliative radiation oncology clinic
verfasst von: Sarah Campos
Liying Zhang
Emily Sinclair
May Tsao
Elizabeth A. Barnes
Cyril Danjoux
Arjun Sahgal
Philiz Goh
Shaelyn Culleton
Gunita Mitera
Edward Chow
Publikationsdatum: 01.06.2009
Verlag: Springer-Verlag
Erschienen in: Supportive Care in Cancer / Ausgabe 6/2009
Print ISSN: 0941-4355
Elektronische ISSN: 1433-7339
DOI: https://doi.org/10.1007/s00520-008-0524-z

Springer Medizin

The palliative performance scale: examining its inter-rater reliability in an outpatient palliative radiation oncology clinic