Table 3.

Characteristics of propensity-matched target lesions

Characteristic	All targets (n = 160)	Framed cases (n = 80)	Frameless cases (n = 80)
Prescription dose	21 Gy (14-24)	20.5 Gy (14-24)	21 Gy (18-24)
Isodose line	53% (50-94)	54% (50-94)	50% (50-90)
Target volume	0.077 mL (0.002-6.15)	0.089 mL (0.002-6.15)	0.069 mL (0.003-4.39)
Age	58 (30-91)	58 (30-84)	60 (44-91)
Sex
Male	56 (35%)	30 (38%)	26 (33%)
Female	104 (65%)	50 (62%)	54 (67%)
Primary
Lung	76 (48%)	36 (45%)	40 (50%)
Breast	61 (38%)	33 (41%)	28 (35%)
Melanoma	17 (10%)	8 (10%)	9 (11%)
GI	3 (2%)	1 (2%)	2 (2%)
Other*	3 (2%)	2 (2%)	1 (2%)

^⁎Renal cell carcinoma, urothelial carcinoma, and thyroid cancer.

Abbreviation: GI = gastrointestinal.