Related Experiment Video
Updated: Jun 29, 2025

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
Published on: September 27, 2024
Understanding the Utility of Less Than Six-Month Prognosis Using Administrative Data Among U.S. Nursing Home
Long Vu1, Siran M Koroukian1,2,3, Sara L Douglas2,4
1Department of Population and Quantitative Health Sciences, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
Documenting a prognosis of less than six months for cancer patients in nursing homes is linked to better end-of-life care. However, its low sensitivity limits its use for broader patient populations.
Area of Science:
- Oncology
- Geriatrics
- Palliative Care
- Health Services Research
Background:
- Limited research exists on the utility of prognostication for cancer patients in nursing homes.
- Accurate prognosis is crucial for tailoring end-of-life (EOL) care.
Purpose of the Study:
- To investigate factors associated with a documented prognosis of less than six months.
- To examine the relationship between this prognosis and EOL care quality in cancer patients residing in nursing homes.
Main Methods:
- Utilized linked Surveillance, Epidemiology, and End Results (SEER) and Medicare data for 20,397 US nursing home residents with cancer who died between July 2016 and December 2018.
- Identified 10.8% of residents with a documented less than six-month prognosis upon admission.
- Assessed aggressive EOL care markers (hospitalization, ED visits, ICU admission) and hospice/palliative care receipt; analyzed prognosis accuracy using six-month mortality.
Main Results:
- The documented less than six-month prognosis had high specificity (94.2%) but low sensitivity (13.7%) for predicting mortality.
- Residents with this prognosis had significantly higher odds of hospice admission (aOR: 3.27) and lower odds of receiving aggressive EOL care.
Conclusions:
- Documented less than six-month prognosis in nursing home cancer patients is associated with less aggressive EOL care.
- While specific, the low sensitivity of this prognostication limits its broad application for operationalizing care in terminal illness.
Related Concept Videos
Cancer Survival Analysis
Kaplan-Meier Approach
Actuarial Approach
Consider the example of a high-risk surgical procedure with significant early-stage mortality. A two-year clinical study is conducted,...
Comparing the Survival Analysis of Two or More Groups
Nursing Ethical Principles II
Consider the following scenario, which illustrates how these principles are applied in the care of Mr. John, a fifty-year-old teacher diagnosed with metastatic liver cancer.
Initially, Mr. John's...
Assumptions of Survival Analysis

