Which is the best postoperative chemotherapy regimen in patients with rectal cancer after neoadjuvant therapy?

BMC Cancer

Table 1 Clinicopathologic features of patients with different chemotherapy regimens

	No-chemo	5-FU	Oxaliplatin
Gender
Male	448	321	131
Female	324	219	92
Age at diagnosis, years
66-70	201	184	105
71-75	234	175	70
>75	337	181	48
Residence location
Big Metro	383	261	127
Metro or Urban	303	199	77
Less Urban or Rural	86	80	19
Year of diagnosis
1992-1996	17	10	0
1997-2000	132	115	0
2001-2004	296	251	26
2005-2008	327	164	197
Histologic grade
Well	59	35	14
Moderate	519	360	146
Poor/Undifferentiated	116	87	37
Unknown	78	58	26
ypT category
ypT1-2	261	146	50
ypT3	446	367	160
ypT4	65	27	13
ypN category
ypN0	609	339	134
ypN1a	79	85	34
ypN1b	42	59	26
ypN2a	20	36	16
ypN2b	22	21	13
ypTNM stage
ypTNM I	233	113	36
ypTNM II	376	226	98
ypTNM III	163	201	89
Intestinal obstruction
No	677	484	201
Yes	95	56	22
HCC risk score
1st quartile	210	143	56
2nd quartile	157	131	45
3rd quartile	189	152	67
4th quartile	216	114	55
Number of examined lymph node
≥12	265	200	106
<12	507	340	117
Postoperative radiotherapy
No	676	455	208
Yes	96	85	15

Abbreviations: HCC Hierarchical Condition Categories, No-chemo without postoperative chemotherapy, 5-FU 5-fluorouracil.

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