Table 1.

Patient characteristics (n = 200)

Demographics	Value	%
Age
Mean	68 years
Median	70 years
Range	33–91 years
Gender
Female	83	42
Male	117	58
Rectal carcinoma	71	35
Rectum 0–5 cm	16
Rectum 5–10 cm	34
Rectum 10–15 cm	21
Colon carcinoma	129	65
Resection of the primary tumor	199	99
Neoadjuvant treatment
Neoadjuvant chemoradiation rectal carcinoma	33a
Neoadjuvant radiotherapy (5×5Gy) rect. ca	7a
Chemotherapy	1b
Urgency
Elective procedure	164	81
Urgent and acute procedures	36	19
In-hospital mortality
Elective procedures	4	2
Urgent en acute procedures	4	11
AJCC stage based on pTNM (2002)
Stage 0c	6	3
Stage I	22	11
Stage II	56	28
Stage III	56	28
Stage IVd	60	30
Follow-up
Mean	19 months
Median	19 months
Range	12–30 months

^aNeoadjuvant treatment was given to patients with rectal carcinoma cT3-4N1-2 on MRI, located at 0–10 cm (lowest border of the tumor) from the anal verge. From 40 patients who received neoadjuvant radiation or chemoradiation, 11 had indeterminate lesions on chest CT

^bThis patient initially received palliative chemotherapy for asymptomatic disease and incurable liver metastases. This strategy was changed when the primary tumor became symptomatic

^cComplete regression after neoadjuvant chemoradiation for rectal carcinoma (cT3-4N1-2)

^dIn this table, metastases that were suspected on staging CT and confirmed during follow-up were classified as AJCC stage IV. Suspected metastases that were resected and histologically benign were classified as stage II or III disease. This overview therefore represents the actual oncological status in the study cohort