Table A1.

Comparison of Treatment Duration Radiotherapy Dose and Intensity Between Treatment Groups

Factor	RT + FU + Mitomycin (n = 472)		RT + FU + Cisplatin (n = 320)		RT + FU (n = 145)		P*
	No.	%	No.	%	No.	%
RX duration, days
≤ 53 (median)	352	74.6	11	3.4	116	80.0	< .0001
> 53	120	25.4	309	96.6	29	20.0
RT duration, days
≤ 44 (median)	229	48.5	153	47.8	98	67.6	.0001
> 44	243	51.5	167	52.2	47	32.4
Total primary central axis dose, Gy
≤ 50.4 (median)	251	53.2	113	35.3	142	97.9	< .0001
> 50.4	221	46.8	207	64.7	3	2.1
RT intensity†
≤ 1.16 (median)	253	53.6	147	45.9	72	49.7	.1045
> 1.16	219	46.4	173	54.1	73	50.3

Abbreviations: RX, overall treatment; RT, radiation therapy; FU, fluorouracil.

^*χ² test.

^†RT intensity = (total primary central axis dose)/RT duration.