Table 4.

Comparison of dosimetric variables and treatment-related toxicities between patients with and without LS

				P	Test
	All Patients	No	LS	Value
Characteristic	(n = 106)	LS (n = 75)	(n = 31)
Volume receiving 5 Gy, cm3
Median	29.9	29	31	0.25	Median
Mean	32.8	33.2	31.7
Range	9.7–233	9.7–233	15.3–56.5
Volume receiving 15 Gy, cm3
Median	23	22.6	25.9	0.25	Median
Mean	24.8	24.5	25.4
Range	8.8–51.7	8.8–51.7	13.2–43
Spinal cord maximum dose, Gy
Median	32.2	32.2	33	0.97	Median
Mean	32.7	32.4	33.5
Range	18.2–47.2	18.2–47.2	28–43.5
Spinal cord maximum dose, %
Median	100	100	100	0.33	Median
Mean	99	98	100
Range	64–118	64–118	74–117
Bleomycin toxicity
No	62	45	17	0.40	Fisher’s exact
Yes	17	10	7	0.37
No bleomycin	27	20	7
Peripheral neuropathy
No	53	39	14	0.43	Fisher’s exact
Yes	53	36	17	0.51