Table 2.

Clinicopathological features of Brazilian colorectal cancer patients (n = 1,002).

Variable	Categories	n	%
Gender	Male	520	51.9
	Female	482	48.1
Age at diagnose	<50	290	28.9
(in years)	>= 50 to <75	606	60.5
	>= 75	106	10.6
Brazilian region of origin	South / Southeast	822	82.0
	Midwest	87	8.7
	North / Northeast	93	9.3
Primary tumor site	Right colon	250	25.0
	Left colon	466	46.5
	Rectum	285	28.5
	Missing data	1
Clinical stage (AJCC)	0/I	125	12.5
	II	376	37.6
	III	332	33.2
	IV	167	16.7
	Missing data	2
Histological type	Adenocarcinoma	937	93.5
	Mucinous	58	5.8
	Others	7	0.7
Histological grade	I / II	924	93.6
	III / Undifferentiated	63	6.4
	Missing data	15
Lymphovascular invasion	No	621	67.4
	Yes	300	32.6
	Missing data	81
Perineural invasion	No	731	85.6
	Yes	123	14.4
	Missing data	148
Presence synchronous tumors	No	944	94.2
	Yes	58	5.8
Presence of recurrence	No	698	69.7
	Yes	304	30.3
Treatment period	2000–2009	184	18.4
	2010–2014	818	81.6
Surgery	No	40	4.0
	Yes	961	96.0
	Missing data	1
Neoadjuvant chemotherapy	No	18	10.2
	Yes	159	89.8
	Not applicable	824
	Missing data	1
Adjuvant chemotherapy	No	543	55.1
	Yes	442	44.9
	Missing data
Radiotherapy	No	793	79.1
	Yes, neoadjuvant	165	16.5
	Yes, adjuvant	21	2.1
	Yes, paliative	21	2.1
	Missing data	2
Vital status	Alive without cancer	465	46.4
	Alive with cancer	48	4.8
	Death for cancer	422	42.1
	Death for others causes	67	6.7