Quality of Life Changes and Survival in Colorectal Cancer
Author Information
Author(s): Donald P Braun, Digant Gupta, James F Grutsch, Edgar D Staren
Primary Institution: Cancer Treatment Centers of America® at Midwestern Regional Medical Center
Hypothesis
Can changes in health related quality of life scores predict survival in stages III and IV colorectal cancer?
Conclusion
CRC patients whose physical function improves within 3 months of treatment have a significantly increased probability of survival.
Supporting Evidence
- Every 10-point increase in baseline appetite loss was associated with a 7% increased risk of death.
- Every 10-point improvement in physical function at 3 months was associated with a lower risk of death.
- A higher risk of death was associated with a 10-point improvement in social function at 3 months.
Takeaway
If colorectal cancer patients feel better and can do more after treatment, they are likely to live longer.
Methodology
The study evaluated 396 CRC patients, assessing QoL at baseline and after 3 months using the EORTC QLQ-C30, and analyzed survival data with Cox regression.
Potential Biases
The patient cohort was limited to English speakers, which may not represent the entire population of colorectal cancer patients.
Limitations
The study is retrospective, relies on data not collected for this specific hypothesis, and does not control for various factors that could influence survival.
Participant Demographics
{"age_mean":53.2,"gender_distribution":{"male":213,"female":183},"stage_distribution":{"stage_III":176,"stage_IV":220}}
Statistical Information
P-Value
0.001
Confidence Interval
95% CI, 1.01-1.14
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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