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The impact of routine Edmonton symptom assessment system use on receiving palliative care services: results of a population-based retrospective-matched cohort analysis
  1. Lisa Barbera1,2,3,4,
  2. Rinku Sutradhar3,4,
  3. Craig C Earle3,4,
  4. Doris Howell4,5,
  5. Nicole Mittman6,
  6. Qing Li3,
  7. Deva Thiruchelvam3 and
  8. Hsien Seow3,7
  1. 1Radiation Oncology, Tom Baker Cancer Centre, Calgary, Alberta, Canada
  2. 2Oncology, University of Calgary, Calgary, Alberta, Canada
  3. 3Institute for Clincal Evaluative Sciences, Toronto, Ontario, Canada
  4. 4University of Toronto, Toronto, Ontario, Canada
  5. 5Princess Margaret Hospital Cancer Centre, Toronto, Ontario, Canada
  6. 6Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
  7. 7McMaster University, Hamilton, Ontario, Canada
  1. Correspondence to Dr Lisa Barbera, Radiation Oncology, Tom Baker Cancer Centre, Calgary, Canada; lisa.barbera{at}ahs.ca

Abstract

Background In 2007, Cancer Care Ontario began standardised symptom assessment as part of routine care using the Edmonton Symptom Assessment System (ESAS).

Aim The purpose of this study was to evaluate the impact of ESAS on receipt of palliative care when compared with a matched group of unexposed patients.

Design A retrospective-matched cohort study examined the impact of ESAS screening on initiation of palliative care services provided by physicians or homecare nurses. The study included adult patients diagnosed with cancer between 2007 and 2015. Exposure was defined as completing ≥1 ESAS during the study period. Using 4 hard and 14 propensity score-matched variables, patients with cancer exposed to ESAS were matched 1:1 to those who were not. Matched patients were followed from first ESAS until initiation of palliative care, death or end of study.

Results The final cohort consisted of 204 688 matched patients with no prior palliative care consult. The pairs were well matched. The cumulative incidence of receiving palliative care within the first 5 years was higher among those exposed to ESAS compared with those who were not (27.9% (95% CI: 27.5% to 28.2%) versus 27.9% (95% CI: 27.5% to 28.2%)), when death is considered as a competing event. In the adjusted cause-specific Cox proportional hazards model, ESAS assessment was associated with a 6% increase in palliative care services (HR: 1.06, 95% CI: 1.04 to 1.08).

Conclusion We have demonstrated that patients exposed to ESAS were more likely to receive palliative care services compared with patients who were not exposed. This observation provides real-world data of the impact of routine assessment with a patient-reported outcome.

  • cancer
  • clinical assessment
  • supportive care
  • symptoms and symptom management
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Footnotes

  • Contributors All authors (LB, RS, CE, DH, NM, QL, DT and HS) made substantial contribution to the conception or design of the work; and the acquisition, analysis or interpretation of data for the work; drafting the work or revising it critically for important intellectual content. Final approval of the version to be published was provided by all the authors. Agreement to be accountable for all aspects of the work was given by LB, RS and QL.

  • Competing interests LB: Genentech (honorarium). DH: Carevive (consultancy fees, member of scientific advisory board).

  • Patient consent for publication Not required.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data availability statement No data are available.

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