Higher-Volume Facilities Show Better Myeloma Outcomes
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Monday, November 21, 2016
There is a strong body of evidence showing higher-volume surgical oncology is associated with better clinical outcomes, but there is a lack of similar studies for medical oncology, wrote Dr. Ronald S. Go and his colleagues at the Mayo Clinic in Rochester, Minn.
To investigate, researchers analyzed National Cancer Database data from 94,722 patients with multiple myeloma who were treated at 1,333 facilities. The median number of new multiple myeloma patients seen across all facilities each year was 6.1 patients, with a quartile range of 3.6 patients per year to 10.3.
Patients treated at facilities in the lowest quartile of patient volume had a 22% higher risk of death, compared with patients treated in the highest-volume–quartile facilities, Dr. Go and his colleagues reported (J Clin Oncol. 2016 Oct 26. doi: 10.1200/JCO.2016.68.3805).
Those in the third-lowest volume quartile had a 17% increased risk of death and those in the second-lowest volume quartile had a 12% increased risk, compared with the highest-volume quartile.
Overall, median survival times were 26.9 months for the lowest-volume quartile, then 29.1 months, 31.9 months, and 49.1 months for the second-lowest, second-highest, and highest-volume quartiles, respectively.
"Compared with facilities treating 10 patients per year, facilities treating 20, 30, and 40 patients per year had approximately 10%, 15%, and 20% lower overall mortality rates,” the authors wrote.
NCS is in the highest volume quartile treating over 40 patients per year and sees over 30 new Multiple Myeloma patients per year.
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