Table 3.

Spearman’s rho correlation of palliative response with patient and clinical factors Palliation achieved? (0=no, 1=yes)

	n	Correlation Coefficient	Sig. (2- tailed)
Age (years)	75	0.10	0.383
KPS	75	−0.10	0.414
Histology (SCC, salivary, thyroid, sarcoma, other)	75	−0.17	0.141
T1-2 vs T3-4	65	−0.03	0.834
N0-1 vs N2-3	75	0.01	.952
Prior RT to treated site	75	−0.03	0.77
Surgery to primary site	75	−0.13	0.287
Chemotherapy as part of palliative treatment	75	0.15	0.187
Chemotherapy concurrently with at least 1 cycle of RTOG 8502	75	0.04	0.743
Additional palliative RT to primary site	72	−0.03	0.836
Cycles of RTOG 8502	75	0.29	0.012a

^ap<=0.05

Abbreviations: KPS, Karnofsky Performance Status; RT, radiotherapy; RTOG, Radiation Therapy Oncology Group;