Data Source
We utilized data from the 2004-2015 National Cancer Database (NCDB), a
deidentified dataset of adult and pediatric cancers in the United
States.14 Comprising data from over 1500 hospitals,
the NCDB captures demographics, tumor characteristics, diagnostic
information, treatment modalities, and survival data for approximately
70% of incident cancer cases annually.14 The data
that support the findings of this study are available from the National
Cancer Database at https://www.facs.org/quality-programs/cancer/ncdb.
These data were derived from the following resources available in the
public domain:
https://www.facs.org/quality-programs/cancer/ncdb/publicaccess. This
study was deemed exempt from review by the Johns Hopkins Hospital
Institutional Review Board.