Table 1

Cohort characteristics

CharacteristicsIBD (n (%))Non-IBD* (n (%))
Total number288334541987
Male12748 (44)2222553 (49)
Mean age at entry (SD)38.3 (18.6)40.9 (19.5)
Cardiovascular disease-related drugs
 Antihypertensive, antiarrhythmic and antihyperlipidaemic agents†12804 (44)1770474 (39)
 Anticoagulant drugs‡5072 (18)695541 (15)
 Antidiabetic drugs§1674 (6)222648 (5)
Socioeconomic status
 Unknown, basic or no qualifications10528 (37)1618000 (36)
 Medium-level qualifications2308 (8)369842 (8)
 High-level qualifications1874 (6)342566 (8)
 Self-employed, co-working spouse1233 (4)235758 (5)
 Outside labour market8516 (30)1208873 (27)
 Pensioned4340 (15)761680 (17)
Subtype of IBD
 Crohn's disease (CD)7521 (26)
 Ulcerative colitis (UC)19990 (69)
 CD–UC/UC–CD¶1322 (5)
Age at IBD diagnosis (years)
 15–3410724 (37)
 35–496970 (24)
 50–645833 (20)
 ≥655306 (18)
IBD drugs (ever use)
 5-Aminosalicylic acid18170 (63)
 Azathioprine6192 (21)
 Oral steroids15144 (53)
 Tumour necrosis factor α antagonists1270 (4)
 Major intestinal surgery4240 (15)
  • *Non-IBD during follow up.

  • †ATC codes C0–C10; ‡ATC codes B01; §ATC codes A10.

  • ¶Patients who changed diagnosis during follow up.

  • IBD, inflammatory bowel disease.