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Table 1 Patient Characteristics

From: Temporal and geographic variation in the systemic treatment of advanced prostate cancer

  n = 4275 N = 295,525
Variable Mean ± SD/Count (%) Mean ± SD/Count (%)
Age 73.7 ± 9.2 71.1 ± 9.8
Race
 White 3001 (70.2) 208,702 (70.6)
 Black 553 (12.9) 33,282 (11.3)
 Hispanic 324 (7.6) 23,328 (7.9)
 Asian 84 (2.0) 6144 (2.1)
 Unknown 313 (7.3) 24,069 (8.1)
Education level
 Less than 12th grade 32 (0.7) 1681 (0.6)
 High school diploma 1223 (28.6) 82,070 (27.8)
 Less than bachelor degree 2238 (52.4) 153,094 (51.8)
 Bachelor degree plus 599 (14.0) 42,997 (14.5)
 Unknown 183 (4.3) 15,683 (5.3)
Household income range
  < 50 k 1544 (36.1) 93,629 (31.7)
 50 k-99 k 1312 (30.7) 90,934 (30.8)
  > 100 k 837 (19.6) 70,373 (23.8)
 Unknown 582 (13.6) 40,589 (13.7)
Geographic Region*
 New England 203 (4.7) 15,488 (5.2)
 Middle Atlantic 299 (7.0) 25,371 (8.6)
 South Atlantic 950 (22.2) 71,420 (24.2)
 East North Central 567 (13.3) 38,633 (13.1)
 East South Central 131 (3.1) 9677 (3.3)
 West North Central 448 (10.5) 27,567 (9.3)
 West South Central 421 (9.8) 27,438 (9.3)
 Mountain 441 (10.3) 27,673 (9.4)
 Pacific 628 (14.7) 35,722 (12.1)
 Unknown 187 (4.4) 16,536 (5.6)
Product
 HMO 2079 (48.6) 121,353 (41.1)
 PPO 547 (12.8) 39,180 (13.3)
 Other 1649 (38.6) 134,955 (45.7)
 Unknown 0 (0.0) 37 (0.0)
Metastatic
 Yes 3446 (80.6) 17,802 (6.0)
 No 829 (19.4) 277,723 (94.0)
  1. SD, standard deviation; k, one thousand dollars; HMO, health maintenance organization; PPO, preferred provider organization; ASO, administrative services only (self-funded health plan)
  2. *States within each geographic region:
  3. • New England: Connecticut, Maine, New Hampshire, Rhode Island, Vermont, Massachusetts
  4. • Middle Atlantic: New Jersey, New York, Pennsylvania
  5. • South Atlantic: Delaware, Washington D.C., Florida, Georgia, Maryland, North Carolina, South Carolina, Virginia, West Virginia
  6. • East North Central: Illinois, Indiana, Michigan, Ohio, Wisconsin
  7. • East South Central: Alabama, Kentucky, Mississippi, Tennessee
  8. • West North Central: Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, South Dakota
  9. • West South Central: Arkansas, Louisiana, Oklahoma, Texas
  10. • Mountain: Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, Wyoming
  11. • Pacific: Alaska, California, Hawaii, Oregon, Washington
  12. Study cohort (n = 4275) and all patients with prostate cancer (N = 295,525) over the study period. Baseline characteristics for the study cohort were observed at time of initiation of first-line therapy. Baseline characteristics for the cohort of all patients with prostate cancer were observed at time of first medical claim for prostate cancer during the study period. Patients were classified as metastatic if a medical claim with ICD-9 codes 196.x, 197.x, 198.x, 198.80, 198.81, 198.82, and 198.89 were observed at any point during follow up
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