9 factors decreasing survival in metastatic spine disease patients

Spine

The Journal of Bone and Joint Surgery published an article examining a new prognostic survival algorithm for patients with metastatic spine disease.

The researchers created a classic scoring algorithm — nomogram — and boosting algorithm to compare predictive accuracy. The study authors examined 649 patients from 2002 to 2014 and used a multivariate Cox model to determine factors associated with survival. The factors they found associated with decreased survival were:

 

1. Older age

 

2. Poor performance status

 

3. Primary cancer type

 

4. Spine metastasis

 

5. Lung and/or liver metastasis

 

6. Brain metastasis

 

7. Systemic therapy for cancer before a surgical procedure (chemotherapy, immunotherapy, hormone therapy)

 

8. Higher white blood cell count

 

9. Lower hemoglobin levels

 

The researchers found "the nomogram was more reliable at estimating survival on the test data sets, with an accuracy of 0.75 (30 days), 0.73 (90 days) and 0.75 days (365 days)."

 

The boosting algorithm was comparable to the nomogram for testing data sets, but the researchers found the nomogram was easier to apply and can be more useful as a surgical decision-making aid.

 

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