Development, validation and clinical impact of a prediction model for 6-month mortality in older cancer patients: the GRADE

Aging (Albany NY). 2020 Mar 10;12(5):4230-4246. doi: 10.18632/aging.102876. Epub 2020 Mar 10.

Abstract

Background: To develop, validate, and assess the clinical impact of a clinical score to predict a 6-month mortality risk among older cancer patients.

Results: The mean age was 81.2 ± 6.1 years (women: 54%, various cancers, metastatic cancer: 45%). The score, namely the GRADE, included two geriatric variables (unintentional weight loss, impaired mobility), two oncological variables (cancer site, cancer extension), and exclusively supportive care. Up to a 14% risk of early death, the decision curves suggest that cancer treatment should be instated.

Conclusion: We have developed and validated a simple score, easy to implement in daily oncological practice, to predict early death among older cancer patients which could guide oncologists in their treatment decisions.

Methods: 603 outpatients prospectively included in the Physical Frailty in Elderly Cancer patients cohort study. We created a multivariate prediction model by evaluating the strength of the individual components of the Geriatric Assessment regarding risk of death at 6 months. Each component was evaluated by univariate analysis and the significant variables (P ≤ 0.20) were carried on as covariates in the multivariate cox proportion hazard analysis. The beta coefficients from the model were used to build a point-based scoring system. Clinical impact was assessed using decision curves.

Keywords: cancer; decision support techniques; gait speed; older adults; prognosis.

Publication types

  • Validation Study

MeSH terms

  • Age Factors
  • Aged
  • Aged, 80 and over
  • Female
  • Geriatric Assessment
  • Humans
  • Male
  • Models, Theoretical*
  • Neoplasms / mortality*
  • Prognosis
  • Risk Assessment
  • Survival Rate