Purpose: To investigate the impact of rural status and urologist density on the practice of retroperitoneal lymph node dissection (RPLND) and cancer-specific death (CSD) in patients with nonseminomatous germ cell tumor (NSGCT).
Methods: Urologist density was determined from 2014 to 2015 Area Health Resource File data, and rural residence was determined using the 2003 Rural-Urban Continuum Codes. All cases of NSGCT within Surveillance, Epidemiology and End Results (SEER) 18 with known county code were used for analysis (n = 9473). Fisher's exact test, t-tests, and Cox proportional hazard analysis were used to examine the association between variables of interest and study endpoints.
Results: Overall, 26.7% of cases lived in a county with less than the mean urologist density, 6.23% lived in counties with no urologists, 9.0% lived in a rural county, and 23.1% (n = 2208) had RPLND performed. RPLND was performed more in cases who lived in a county with a urologist and more in cases with urban residence (p < 0.05). The mean number of lymph nodes examined was lower in patients who lived in rural counties and counties with fewer urologists (p < 0.05). There was no difference in the number of positive nodes dependent upon either urologist density categorization or rurality (p > 0.05). Rurality and low urologist density were not associated with a higher risk of CSD related to NSGCT.
Conclusions: Patient's residence and access to urologists affect their surgical NSGCT treatment, and efforts aimed at improving access to high-quality RPLND may be indicated.
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