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Initiation of adjuvant therapy following surgical resection of pancreatic ductal adenocarcinoma (PDAC): Are patients from rural, remote areas disadvantaged?
Author(s) -
Bertens Kimberly A.,
Massman John D.,
Helton Scott,
Garbus Samuel,
Mandelson Margaret M.,
Lin Bruce,
Picozzi Vincent J.,
Biehl Thomas,
Alseidi Adnan A.,
Rocha Flavio G.
Publication year - 2018
Publication title -
journal of surgical oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.201
H-Index - 111
eISSN - 1096-9098
pISSN - 0022-4790
DOI - 10.1002/jso.25060
Subject(s) - medicine , disadvantaged , pancreatic cancer , multivariate analysis , logistic regression , pancreatic ductal adenocarcinoma , pancreatectomy , rural area , residence , oncology , proportional hazards model , hazard ratio , cancer , demography , pancreas , pathology , confidence interval , sociology , political science , law
Background and Objectives Although race and socioeconomic status have been shown to affect outcomes in pancreatic ductal adenocarcinoma (PDAC), the impact of rural residence on the delivery of adjuvant therapy (AT) has not been studied. Methods Patients with resected PDAC were identified using the National Cancer Database (NCDB). Individuals were classified as living in a metro area, urban/rural adjacent to a metro area (URA), and urban/rural remote (URR) area. Multivariate logistic regression was used to assess geographic inhabitance as a predictor of receiving AT. Results A total of 32 521 individuals who underwent pancreatectomy for PDAC were identified. Univariate analysis demonstrated individuals in URR areas were less likely to receive adjuvant chemotherapy (ACT) than those living in URA or metro areas (55.3% vs 55.6% vs 58.8%, P  = 0.011). However on multivariate analysis URR inhabitance was no longer a predictor of ACT (OR = 0.911 P  = 0.125) or ART (OR = 0.953 P  = 0.462). Cox proportional hazard modeling demonstrated URR inhabitance remained independently associated with poor OS (HR 1.076; 95% CI [1.008, 1.149], P  < 0.029). Conclusions URR inhabitance does not impact access to AT, however it is independently associated with a decreased OS. Attention must be focused on optimizing oncologic care to patients with disparate access to healthcare.

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