Table 1.

Characteristics of the colectomy as well as the matched control patients; the counts of the first CVD diagnosis, as well as CVD diagnoses within the seven CVD domains

	Patients with colectomy			Control patients*
Characteristics	All (n=1530)	With IBD† (n=791)	With cancer (n=531)	All* (n=22 950)	Orthopaedic surgery (n=7650)	Surgery in the GI tract‡ (n=7650)	Other surgery not in the GI tract§ (n=7650)
Gender (% male)	49.0	51.2	50.8	49.0	49.0	49.0	49.0
Age (years), median (minimum, maximum)	60 (45, 90)	56 (45, 84)	65 (45, 90)	59 (45, 91)	59 (45, 91)	59 (45, 91)	59 (45, 92)
Counts of the first CVD diagnosis¶	394	191	133	6564	2148	2223	2193
CVD diagnosis domain (counts of first events)
Hypertensive disorders	187	89	59	3474	1148	1166	1160
Acute ischaemic heart diseases	100	55	29	1751	568	596	587
Chronic ischaemic heart disease	63	33	21	1224	379	435	410
Cardiac arrhythmias	105	48	36	1854	607	647	600
Heart failure	57	27	18	841	273	310	258
Cerebrovascular diseases	85	34	34	1422	464	493	465
Other arterial diseases	65	33	22	1227	407	419	401

*Age and sex matched, but otherwise randomly selected control patients; five for each surgical comparison group of orthopaedic surgery, surgery in the GI tract, other major surgery not in the GI tract.

†IBD includes ulcerative colitis, patients with Crohn's disease and diagnoses of other non-infective gastroenteritis and colitis.

‡Leaving the gastrointestinal tract intact.

§Surgery not related to cardiac diseases.

¶First occurring cardiovascular and cerebrovascular diagnosis of 32 possible CVD diagnoses.

CVD, cardiovascular and cerebrovascular; GI, gastrointestinal; IBD, inflammatory bowel disease.