Table 2.

Treatment type and PSA levels among men who received additional therapy following radical prostatectomy stratified by receipt of postoperative bone scan.

Characteristic	Bone scan (n=2652)	No bone scan (n=9617)	p-value
Any therapy (%)	51.6%	11.8%	<.001
Radiation therapy (%)	14.3%	3.6%	<.001
Adjuvant	3.5%	1.1%	<.001
Salvage	10.8%	2.5%	<.001
Time to radiation therapy, months (median, IQR)	23.8 (12.5 - 46.4)	21.0 (10.6 - 43.0)	0.06
Adjuvant	8.1 (5.8- 9.9)	7.7 (5.4 - 9.8)	0.6
Salvage	33.4 (20.2 - 52.7)	33.8 (18.9 - 49.6)	0.3
PSA at radiation therapy, ng/mL (median, range)	0.3 (0.0 - 0.9)	0.2 (0.0 - 3.7)	<.001
Adjuvant	0.5 (0.0 - 9.1)	0.1 (0.0 - 3.7)	<.001
Salvage	0.3 (0.0 - 9.4)	0.2 (0.0 - 3.3)	<.001
ADT (%)	37.3%	8.2%	<.001
PSA at ADT, ng/mL (median, range)	0.9 (0 - 2513)	0.2 (0 - 598)	0.1
Time to ADT, months (median, IQR)	12.2 (2.9 - 38.6)	8.3 (1.8 - 36.6)	0.05