Table 1.
Patient descriptive statistics.
| Pt characteristics | SBRT | IMRT | p-Value* | ||
|---|---|---|---|---|---|
| Number of Pts. | 150 | 120 | |||
| Age at diagnosis | Years | Years | <0.0001 | ||
| Median (IQR) | 67 (11.8) | 72 (9.2) | |||
| Range | 44–88 | 56–89 | |||
| Pre-tx PSA | ng/mL | ng/mL | 0.1403 | ||
| Mean (SD) | 8.1 (7.8) | 10.8 (18.7) | |||
| Median (IQR) | 6 (3.7) | 6.2 (4.5) | |||
| Pre-tx PSA | Number of Pts. | Percent | Number of Pts. | Percent | 0.2644 |
| <10 ng/mL | 122 | 81.0 | 92 | 76.7 | |
| 10–20 ng/mL | 19 | 13.0 | 14 | 11.7 | |
| >20 ng/mL | 9 | 6.0 | 14 | 11.7 | |
| T-stage | Number of Pts. | Percent | Number of Pts. | Percent | <0.0001 |
| T1c | 113 | 75.3 | 43 | 35.8 | |
| T2a | 20 | 13.3 | 22 | 18.3 | |
| >T2a | 17 | 11.3 | 55 | 45.8 | |
| Gleason score | Number of Pts. | Percent | Number of Pts. | Percent | <0.0001 |
| 5–6 | 83 | 55.3 | 34 | 28.3 | |
| 7 | 55 | 36.7 | 61 | 50.8 | |
| 8+ | 12 | 8.0 | 25 | 20.8 | |
| NCCN 2015 risk group | Number of Pts. | Percent | Number of Pts. | Percent | <0.0001 |
| Very low | 33 | 22.0 | 9 | 7.5 | |
| Low | 34 | 22.7 | 13 | 10.8 | |
| Intermediate | 51 | 34.0 | 38 | 31.7 | |
| High | 25 | 16.7 | 48 | 40.0 | |
| Very high | 7 | 4.6 | 12 | 10.0 | |
| Race N = 145 | Number of Pts. | Percent | Number of Pts. | Percent | <0.0001 |
| African-American | 49 | 32.7 | 17 | 14.2 | |
| Caucasian | 90 | 60.0 | 101 | 84.2 | |
| Other | 7 | 4.7 | 1 | 0.8 | |
| Unknown | 4 | 2.7 | 1 | 0.8 | |
| Hormone treatment | Number of Pts. | Percent | Number of Pts. | Percent | <0.0001 |
| noADT | 109 | 73 | 34 | 28 | |
| ADT | 41 | 27 | 86 | 72 |
*Continuous variable p-value computed by t-test. Categorical variable p-value computed by fisher exact test.