Table 1 Study population.
|  | Non-aggressive (N = 79,106) | Aggressive (N = 3474) | Overall (N = 82,580) |
|---|---|---|---|
Age at diagnosis | |||
 Mean (SD) | 65.5 (8.98) | 70.6 (10.90) | 65.8 (9.13) |
 Median [Min, Max] | 65.0 [31.0, 105] | 71.0 [38.0, 98.0] | 65.0 [31.0, 105] |
Race | |||
 White | 69,598 (88.0%) | 2925 (84.2%) | 72,523 (87.8%) |
 Black | 8908 (11.3%) | 519 (14.9%) | 9427 (11.4%) |
 Native | 31 (0.0%) | 2 (0.1%) | 33 (0.0%) |
 Asian | 569 (0.7%) | 28 (0.8%) | 597 (0.7%) |
Health insurance type | |||
 Not insured | 72 (0.1%) | 12 (0.3%) | 84 (0.1%) |
 Private | 39,550 (50.0%) | 1082 (31.1%) | 40,632 (49.2%) |
 Self-pay | 282 (0.4%) | 43 (1.2%) | 325 (0.4%) |
 Medicaid | 1845 (2.3%) | 203 (5.8%) | 2048 (2.5%) |
 Medicare | 31,413 (39.7%) | 1908 (54.9%) | 33,321 (40.4%) |
 Military | 583 (0.7%) | 24 (0.7%) | 607 (0.7%) |
 Unknown | 5361 (6.8%) | 202 (5.8%) | 5563 (6.7%) |
Tract-level percent population living below federal poverty level | |||
  < 4.99% | 24,654 (31.2%) | 838 (24.1%) | 25,492 (30.9%) |
  < 9.99% | 25,261 (31.9%) | 1019 (29.3%) | 26,280 (31.8%) |
  < 19.99% | 19,092 (24.1%) | 984 (28.3%) | 20,076 (24.3%) |
  > 20% | 10,099 (12.8%) | 633 (18.2%) | 10,732 (13.0%) |
County-level water quality index (EQI) | |||
 Very high | 35,535 (44.9%) | 1387 (39.9%) | 36,922 (44.7%) |
 High | 12,784 (16.2%) | 552 (15.9%) | 13,336 (16.1%) |
 Average | 17,986 (22.7%) | 875 (25.2%) | 18,861 (22.8%) |
 Low | 8763 (11.1%) | 490 (14.1%) | 9253 (11.2%) |
 Very low | 4038 (5.1%) | 170 (4.9%) | 4208 (5.1%) |
Tract-level percent of males aged >  = 35 working in protective service occupations such as fire-fighting, and law enforcement | |||
 Mean (SD) | 0.75 (1.06) | 0.85 (1.19) | 0.75 (1.06) |
 Median [Min, Max] | 0.44 [0, 11.4] | 0.50 [0, 11.4] | 0.44 [0, 11.4] |