TABLE 3.

Differences between Kadish A and B

	Kadish A		Kadish B		P value
	No. of patients	%	No. of patients	%
Age, y					.0884
<60	117	67.63	131	59.28
≥ 60	56	32.37	90	40.72
Charlson-Deyo score					.7217
0	154	89.02	201	90.95
1	15	8.67	17	7.69
2	4	2.31	3	1.36
Facility type					.0846
Nonacademic	53	30.64	89	40.27
Academic/research	88	50.87	100	45.25
Insurance status					.1953
Government	42	24.28	69	31.22
Private	123	71.10	138	62.44
Other	8	4.62	14	6.33
Neck dissection					.1336
No	168	97.11	205	92.76
Yes	1	0.58	6	2.71
Unknown	4	2.31	10	4.52
Treatment					.0238
RT only	2	1.20	5	2.34
Chemotherapy external RT	3	1.81	7	3.27
Surgery only	84	50.60	70	32.71
Surgery + RT	54	32.53	89	41.59
Surgery + RT + chemotherapy	20	12.05	38	17.76
Margins					.0258
Negative	110	63.58	105	47.51
Positive	14	8.09	29	13.12

Abbreviation: RT, radiotherapy.