Risk factors for relapse in remission of Crohn’s disease

Risk factor	Adjusted HR^1-1-150(95% CI)
Men v women	0.8 (0.4 to 1.6)^1-1-151
Medical v surgical induction of remission	2.1 (1.0 to 4.2)
Currentv never smoking	2.1 (1.1 to 4.2)
Previous v never smoking	1.0 (0.5 to 2.0)^1-1-151
Ever v never use of oral contraceptives	3.0 (1.5 to 5.9)

↵1-1-150 HR=hazard ratio, which was adjusted for sex, type of induction of remission, smoking status, and oral contraceptive use.
↵1-1-151 Not significant.