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Table 1 Patient clinical and demographic characteristics

From: Stereotactic body radiotherapy versus conventional/moderate fractionated radiation therapy with androgen deprivation therapy for unfavorable risk prostate cancer

Covariate Statistics Level Radiation group Parametric P-valuea
SBRT N = 558 EBRT N = 40,797
Race N (Col %) White 415 (75.73) 32,076 (79.47) 0.07
N (Col %) Black 114 (20.8) 6923 (17.15)
N (Col %) Other 19 (3.47) 1363 (3.38)
Facility Type N (Col %) Non-academic program 237 (42.47) 28,382 (69.57) <.001
N (Col %) Academic program 321 (57.53) 12,415 (30.43)
Median Income Quartiles N (Col %) < $30,000 76 (14.07) 5527 (13.96) <.001
N (Col %) $30,000 - $34,999 60 (11.11) 7315 (18.47)
N (Col %) $35,000 - $45,999 130 (24.07) 11,117 (28.07)
N (Col %) > = $46,000 274 (50.74) 15,643 (39.5)
Year of diagnosis N (Col %) 2004–06 92 (16.49) 8811 (21.6) <.001^
N (Col %) 2007–09 109 (19.53) 9121 (22.36)
N (Col %) 2010–12 127 (22.76) 10,852 (26.6)
N (Col %) 2013–15 230 (41.22) 12,013 (29.45)
Insurance status N (Col %) Not Insured 12 (2.2) 744 (1.85) 0.787
N (Col %) Private 146 (26.79) 10,563 (26.25)
N (Col %) Government insurance 387 (71.01) 28,931 (71.9)
Facility Location N (Col %) Northeast 188 (33.69) 10,369 (25.42) <.001
N (Col %) South 155 (27.78) 13,291 (32.58)
N (Col %) Midwest 112 (20.07) 10,751 (26.35)
N (Col %) West 103 (18.46) 6386 (15.65)
Risk group N (Col %) Unfavorable intermediate 130 (23.3) 5094 (12.49) <.001
N (Col %) High 428 (76.7) 35,703 (87.51)
Distance to facility N (Col %) 0–10 miles 250 (44.88) 22,460 (55.25) <.001
N (Col %) 10–50 miles 212 (38.06) 15,550 (38.25)
N (Col %) 50+ miles 95 (17.06) 2641 (6.5)
Charlson comorbidity score N (Col %) 0 472 (84.59) 34,616 (84.85) 0.197
N (Col %) 1 74 (13.26) 4825 (11.83)
N (Col %) 2+ 12 (2.15) 1356 (3.32)
Urban/Rural Location N (Col %) Metro 439 (82.06) 31,912 (80.12) 0.022
N (Col %) Urban 92 (17.2) 6854 (17.21)
N (Col %) Rural 4 (0.75) 1064 (2.67)
Age at Diagnosis N   558 40,797 0.980
Mean   70.18 70.19
Median   71 71
Min   43 40
Max   90 90
Std Dev   7.95 7.91
  1. a Parametric p-value calculated by ANOVA for numerical covariates and chi-square test for categorical covariates
  2. ^ P-value calculated by Cochran-Armitage test for trend