Fig. 2

The Kaplan-Meier curves for Prostate Cancer-specific survival by the PSCI catchment area and by the Urban or Rural Appalachia regions within the PSCI catchment area. The Kaplan-Meier curves for Prostate Cancer-specific survival by the PSCI catchment area are not significantly different with p-value = 0.1. Also, the Kaplan-Meier curves for Prostate Cancer-specific survival by the Urban or Rural Appalachia Regions within the PSCI catchment area are significantly different with p-value = 0.001. Note that, p-values for group comparisons on survival curves are obtained from the log-rank tests