Table 2.

Standardized incidence ratios [SIRs] and 95% confidence intervals, evaluating the risk of cancer events in IBD compared with in the general Quebec population

	IBD overall	Crohn’s disease	Ulcerative colitis
All cancers	1.20 [1.13–1.26]	1.39 [1.28–1.49]	1.00 [0.91–1.09]
Extraintestinal cancers	1.16 [1.08–1.23]	1.33 [1.22–1.44]	0.99 [0.89–1.09]
Breast cancer	1.13 [0.96–1.31]	1.04 [0.82–1.27]	1.21 [0.93–1.50]
Prostate cancer	0.92 [0.73–1.12]	0.92 [0.62–1.22]	1.00 [0.72–1.27]
Respiratory cancers	0.95 [0.80–1.09]	1.16 [0.93–1.39]	0.75 [0.57–0.94]
Non-melanoma skin cancer	22.62 [18.27–26.96]	28.81 [22.06–35.56]	15.51 [10.05–20.97]
Intestinal cancers	1.36 [1.19–1.53]	1.66 [1.39–1.94]	1.01 [0.79–1.22]
Colorectal cancer	1.39 [1.19–1.60]	1.73 [1.40–2.06]	1.02 [0.77–1.27]