Table 14.

Number (percentage) of patients in groups differing in the type of treatment and survival, the result of the test of independence

	Survival rate (months)			P-value
<12 N=93	12–24 N=46	>24 N=82
Surgery only (n=18)	9 (50.0%)	4 (22.2%)	5 (27.8%)	0.680
Radiotherapy only (n=30)	8 (26.7%)	6 (20.0%)	16 (53.3%)	0.109
Chemotherapy only (n=22)	20 (91.0%)	1 (4.5%)	1 (4.5%)	<0.001
Surg. & Rad. (n=30)	8 (26.7%)	6 (20.0%)	16 (53.3%)	0.063
Surg. & Chem. (n=16)	12 (75.0%)	1 (6.2%)	3 (18.8%)	0.039
Rad. & Chem. (n=52)	13 (25.0%)	15 (28.8%)	24 (46.2%)	0.005
Surg. & Rad. & Chem. (n=44)	4 (9.1%)	13 (29.6%)	27 (61.4%)	<0.001

Note: Bold value represents statistically significant.