Patient Characteristics and Summary of Previous Treatment in the 2 Different Patient Preparation Groups
| Group | Median age (y) | Median PSA (ng/mL) at PET | Median PSAdt (mo) | Median BMI kg/m2 | GFR < 60 mL/min/1.73m2 | ADT at PET | BR after RPE | BR after pRt | BR after RPE + sRT |
|---|---|---|---|---|---|---|---|---|---|
| G1* | 70 (range, 52–87) | 1.30 (range, 0.14–81.09) | 6 (range, 0.9–120.2)† | 25.9 (range, 17.5–57.8) | 38 (17.3%) | 40 (18.2%) | 109 (49.5%) | 22 (10.0%) | 89 (40.5%) |
| G2‡ | 72 (range, 44–88) | 0.82 (range, 0.10–147.6) | 4.7 (range, 1.2–59.1)¶ | 26.0 (range, 18.8–40.8) | 34 (15.5%) | 46 (20.9%) | 116 (52.7%) | 40 (18.2%) | 64 (29.1%) |
| P | 0.032 | 0.055 | 0.417 | 0.613 | 0.515 | 0.809 | § | § | § |
* No preparation.
↵† 220 patients, missing data n = 171.
↵‡ Injection of 20 mg of furosemide and 500 mL of NaCl 0.9%.
↵¶ 220 patients, missing data n = 172.
↵§ Overall P value 0.009.
P values from a Mann–Whitney U test (age, PSA, PSAdt, BMI) and from Fisher exact tests (GFR, ADT, and BR subgroups).
ADT = androgen deprivation therapy; BMI = body mass index; GFR = glomerular filtration rate; PSAdt = PSA doubling time; pRT = primary radiation therapy; sRT = salvage radiation therapy.